Compressor modules and electric refrigerant compressors

Abstract

A compressor module (10), in particular for an electric refrigerant compressor, comprises a compressor housing (12) with a high-pressure chamber (30) and an outlet (36) for compressed refrigerant (K); and a separating device (32) accommodated in the compressor housing for separating a lubricant (S) mixed with the refrigerant (K), wherein the separating device (32) comprises a hollow cylindrical separating section (32a) and a lubricant (S) extending into the separating section to form an annular chamber (38) for the refrigerant. The invention relates to a separator (32) comprising a funnel-shaped outlet section (32b) for a lubricant (K), wherein the separator (32) is inserted with a section end (40) of the separator section (32a) into a receptacle (42) of the compressor housing (12) connected to the lubricant reservoir (34) and the separator (32) is inserted with the outlet section (32b) at least sectionally into the outlet (36), and wherein the separator (32) is held in a rotationally and / or axially movable manner on the compressor housing (12) by a form-locking connection.

Description

Technical Field

[0001] The present invention relates to a compressor module comprising a compressor housing having a high-pressure chamber and an outlet for compressed refrigerant, and a separation device accommodated in the compressor housing for separating lubricant mixed with the refrigerant. The present invention also relates to an electric or motor-driven refrigerant compressor having such a compressor module. Background Art

[0002] An air conditioning system for a motor vehicle, which can be used to cool the vehicle interior in the manner of an extrusion refrigerator, has a circuit in which a refrigerant, such as R-134a (1,1,1,2-tetrafluoroethane) or R-774 (CO2), is conducted. During operation, the refrigerant is compressed by means of a (refrigerant) compressor or extruder, which increases the refrigerant's pressure and temperature. The refrigerant compressor is driven, in particular, by an electric motor. The refrigerant compressor, and its (compressor) housing, has a compressor section and a high-pressure chamber (extrusion chamber) and a separation device arranged one behind the other in the direction of refrigerant flow. The compressor section, which conveys the refrigerant from a low-pressure inlet to a high-pressure outlet, is designed, for example, as a scroll compressor.

[0003] During operation of the refrigerant compressor, lubricant, particularly oil, introduced into the brake compressor mixes with the gaseous refrigerant. The lubricant and refrigerant are separated by means of a separation device in the manner of a centrifugal separator (cyclone separator). For this purpose, the separation device comprises a separation chamber (separation section), particularly in the form of a hollow cylinder, in which the separator (separation section) is accommodated. The mixture (fluid) of lubricant and refrigerant flowing into the separation chamber through an inlet opening of the separation device flows spirally (cyclone-like) around the separator. Centrifugal force acts as a separating mechanism on the mixture of refrigerant and lubricant.

[0004] WO 2020 / 03993 A1 discloses a compressor module having a pot-shaped compressor housing with an outlet for compressed refrigerant and a separation device introduced into a high-pressure chamber of the compressor housing for separating lubricant mixed with the refrigerant. The separation device comprises a hollow cylindrical chamber wall forming a separation chamber fluidically connected to the outlet, and a separator accommodated in the accommodation chamber, forming an annular chamber.

[0005] To prevent rotation, the separator has a radially outwardly extending retaining profile that is received in a corresponding seat on the outlet. Furthermore, the separator is positioned in the receiving chamber, and thus the compressor housing, with a force-locking or friction-locking fit, forming an interference fit. These measures have proven insufficient or unsuitable for securing the separator device in the compressor housing during compression operation. This is because the interference fit can loosen during compressor operation, for example due to temperature influences. This can lead to undesirable noise (airborne and / or structure-borne) due to vibrations and / or a deterioration in the separating function of the separator device of the compressor module. Summary of the Invention

[0006] The object of the present invention is therefore to describe a particularly suitable compressor module in which a torsion and / or axial displacement of the separating device in the compressor housing is reliably avoided. In addition, an electric refrigerant compressor having such a compressor module should also be described.

[0007] According to the invention, this object is achieved with respect to the compressor module by the features of claim 1, and with respect to the electric refrigerant compressor by the features of claim 11. Advantageous embodiments and developments are the subject matter of the dependent claims. The explanations given in connection with the compressor module also apply to the refrigerant compressor, and vice versa.

[0008] The compressor module comprises a compressor housing with a high-pressure chamber and an outlet for compressed refrigerant, and a separating device housed in the compressor housing for separating lubricant mixed with the refrigerant. The outlet is expediently designed as a hole or a pipe-like shape, i.e., as an outlet pipe. The separating device comprises a hollow-cylindrical separating section and a funnel-shaped (conical) outlet section for the refrigerant, which projects into the separating section, forming an annular chamber.

[0009] The separating device is inserted with the segment end of the separating section into a receptacle in the compressor housing, which is connected to the lubricant reservoir. The separating device is inserted with the outlet section into the outlet of the compressor housing. The separating device is preferably held in the compressor housing in a suitable manner, secured against rotation and / or axial displacement, with only a positive fit.

[0010] A "positive fit" or a "positive connection" between at least two parts connected to one another means, in this context and hereinafter, in particular that the connected parts are held together in at least one direction by direct interlocking engagement of the contours of the parts themselves or by indirect interlocking engagement via additional connecting parts. The "prevention" of mutual movement in this direction is thus caused by the shape.

[0011] The separation device is preferably made of plastic. The separation device is preferably one-piece (integral). The funnel-shaped outlet section extends into the hollow cylindrical separation section, forming a transition region. Thus, an annular chamber is formed there between the inner wall of the hollow cylindrical separation section and the outer wall of the wall portion of the separation section that extends into the separation section. An inlet opening provided in the outer wall of the separation section opens into the annular chamber. The fluid consisting of refrigerant and lubricant (refrigerant-oil mixture) flowing into the high-pressure chamber of the compressor module enters the annular chamber of the separation device through the inlet opening. The lubricant (oil) is separated from the refrigerant in the branching device.

[0012] In an advantageous embodiment, the separating device comprises a plurality of form-locking elements that engage in corresponding form-locking contours of the compressor housing. "Multiple form-locking elements" also simply refers to a (single) form-locking element that engages in a corresponding form-locking contour. In other words, the separating device comprises at least one form-locking element and the compressor housing comprises at least one (corresponding) form-locking contour.

[0013] The compressor housing has a housing bottom and a housing wall. An outlet, for example, is introduced into the housing wall as a hole or, depending on the type of hole, as an outlet nozzle. The outlet, suitably implemented as an outlet nozzle, opens into a high-pressure chamber in a suitable manner. The high-pressure chamber is suitably surrounded by an annular wall that extends from the housing bottom in the axial direction of the compressor module, and against which the stationary compressor part, in particular the stationary scroll body, rests sealingly with its base plate. The high-pressure chamber is thus formed in the space bounded by the annular wall, the housing bottom, and the stationary compressor part.

[0014] Preferably at least two or only two form-fitting elements are arranged in a suitable manner spaced apart from each other along the periphery of the outlet section of the separating device. Here, the form-fitting elements are suitably positioned angularly symmetrically, in particular positioned at an angle of 90° or preferably 180° to each other.

[0015] The or each positive-locking element projects radially in a suitable manner (relative to the center axis of the separating device), i.e., extends beyond the circumference of the outlet section and / or the separating section. The respective positive-locking element projects radially so that, when the separating device is inserted into the compressor housing, it locks into the positive-locking contour on the housing side at the location of the positive-locking contour, in the manner of a snap-fit ​​connection. The snap-fit ​​connection can be designed to be non-releasable or releasable, with the positive-locking element being designed accordingly. The respective positive-locking contour for the positive-locking element particularly advantageously forms a tangential stop as a rotational lock for the separating device in the compressor housing and / or an axial stop to prevent axial movement of the separating device in the compressor housing.

[0016] In an advantageous embodiment, the form-locking contour is designed as a radial groove. Another of the form-locking contours is suitably designed as an axial groove. At least one of the form-locking contours is particularly advantageously designed as a tangential stop for the corresponding form-locking element and thus as a rotation lock for the isolating device in the compressor housing.

[0017] Additionally or alternatively, a receptacle of the compressor housing connected to the lubricant reservoir can serve as an axial stop for the separating device. To this end, the receptacle is suitably designed as a stepped hole or in the manner of a stepped bore, forming a preferably annular contact step, on which the separating device is supported or rests with its separating section at the free end.

[0018] In one advantageous embodiment, radial support webs are formed on the outside (and relative to the center axis) of the separator device's outlet section. These support webs prevent the separator device from tilting in the compressor housing, particularly in the area of ​​the outlet of the outlet nozzle. The radial support webs are suitably flush with the outer periphery of the (hollow) cylindrical separator device's outlet section. In other words, the outer diameter of the (cylindrical) separator section and the outer diameter of the (funnel-shaped) outlet section are identical in the area of ​​the radial support webs.

[0019] The or each positive-locking element is advantageously arranged along one of the radial support webs and / or formed from this support web. In other words, the radial support webs along which one of the positive-locking elements is arranged are axially shortened relative to the center axis of the separating device, forming a web-free axial section in which the respective positive-locking element is arranged. This web-free axial section thus assumes a dual function: a snap-in element for positive locking and a support function to prevent the separating device from tilting in the compressor housing.

[0020] In a particularly suitable embodiment, the respective form-locking element is formed at the transition from the funnel-shaped outlet section to the (hollow-cylindrical) outlet section, forming a fixed end. Here, the form-locking element extends from its fixed end along the conically widening funnel-shaped outlet section toward its outlet-side section end, at least in sections, without contact. In other words, the loose ends of the form-locking element extend at a distance or with a gap along the funnel-shaped or conical outlet section of the separating device.

[0021] According to an advantageous design, a housing wall extending axially relative to the center axis of the separating device is provided in the high-pressure chamber, preferably in the housing region or wall region of the compressor housing connected to the outlet. This housing wall is preferably constructed in the manner of a half-shell, which partially, that is, surrounds the outlet section of the separating device over a portion of its circumference. Respective positive-locking profiles are suitably introduced into the housing wall as radial or axial grooves. This positive-locking profile extends radially or axially in the housing wall and opens into the high-pressure chamber, i.e., is open toward it. The radial groove, as a positive-locking profile, suitably forms both a tangential and an axial stop for the positive-locking element and, via the positive-locking element, for the separating device in the compressor housing. The axial groove, as a positive-locking profile, suitably also forms such a tangential stop or is constructed as such a tangential stop.

[0022] In a suitable development, an electric (motorized) refrigerant compressor for compressing refrigerant, in particular for motor vehicles, comprises such a compressor module. Additionally, the electric refrigerant compressor comprises a motor module with an electric motor. Here, a compressor part, suitably embodied as a scroll compressor operating in the manner of a positive displacement pump, is supported in a compressor housing, wherein a movable scroll part (movable scroll) is driven relative to a stationary scroll part (stationary scroll), in particular by means of an electric motor, along rails, thereby compressing the refrigerant.

[0023] The vortex bodies are implemented as interlaced nested spiral pairs or vortex pairs, wherein one of the spirals is fixed relative to the compressor housing and is at least partially embedded in a second spiral body driven along a track by means of an electric motor. Movement along the track refers in particular to an eccentric circular motion trajectory in which the movable vortex body itself does not rotate around its own axis. As a result, two or more essentially sickle-shaped refrigerant chambers are formed between the spiral bodies during each movement along the track, the volume of which is reduced (compressed) during the movement. The compressed refrigerant is discharged into the high-pressure chamber via an outlet in the fixed vortex body part. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following is a more detailed description of an embodiment of the present invention with reference to the accompanying drawings, wherein:

[0025] Figure 1 A longitudinal section shows an electric refrigerant compressor having a motor module with an electric motor and a compressor module, wherein a separating device for separating lubricant from refrigerant is arranged in a high-pressure chamber of a compressor housing of the compressor module;

[0026] Figure 2 A side view shows a separating device having a cylindrical separating section, a funnel-shaped outlet section for the separated refrigerant, and two latching hook-shaped form-fitting elements in the transition region between the separating section and the outlet section.

[0027] Figure 3 The compressor housing and the separating device inserted therein in a form-fitting manner are shown in cross section;

[0028] Figure 4 Another cross-sectional view shows the Figure 3 a compressor housing having a form-locking snap connection between a form-locking element of the separating device and a corresponding form-locking contour in a housing wall of the compressor housing;

[0029] Figure 5 Shown in a perspective view Figure 3 an enlarged section in the region of the snap connection;

[0030] Figure 6 Show Figure 4 an enlarged section in the region of the snap connection;

[0031] Figure 7 A perspective view shows a compressor housing in the region of a nozzle-shaped outlet and a radial groove introduced into the compressor housing, which radial groove, as a positive-locking contour, has an axial and tangential stop for a positive-locking element in the form of a latching projection at the free end of an outlet section of a variant of a separating device; and

[0032] Figure 8 The cross-sectional view partially shows a form-fitting snap connection between the form-fitting element of the separating device and radial and axial grooves as further form-fitting contours in the outlet of the second form-fitting element of a variant of the separating device.

[0033] Corresponding parts and quantities are provided with the same reference symbols in all figures. DETAILED DESCRIPTION

[0034] exist Figure 1 The electric compressor 2 shown in FIG. 1 is installed or can be installed as an electric refrigerant compressor in a refrigerant circuit (not shown in detail) of an air conditioning system of a motor vehicle. The compressor 2 is modularly constructed and includes a motor module 4 with an electric motor 5 , which in turn includes a rotor 6 and a stator 8 . Furthermore, the compressor 2 includes an electronics compartment 9 , which houses the electronics (not shown in detail) for controlling the electric motor 5 . Furthermore, the compressor 2 includes a compressor module 10 that is coupled to the motor module 4 .

[0035] The compressor module 10 has a substantially pot-shaped compressor housing 12 with a housing bottom 14 and a housing wall 16. A compressor part 18, designed here as a scroll compressor, is mounted in the compressor housing 12 and is drive-connected to the electric motor 5 of the motor module 4. The compressor part 18 has a first compressor subelement (stationary scroll) 20 that is stationary relative to the compressor housing 12 and a movable second compressor subelement (movable scroll) 22 that is embedded in the first compressor subelement.

[0036] Lubricant S is present in the compressor 2 . This lubricant serves to lubricate the compressor section 18 and performs a sealing function, thereby preventing leakage between the compressor sub-elements (scrolls) 20 and 22 . Due to operational influences, the refrigerant K compressed by the compressor section 18 mixes with the lubricant S. Refrigerant K flows through the compressor section inlet 24 on the low-pressure side of the compressor section 18 into the compressor section chamber 26 . The mixture or fluid F consisting of refrigerant K and lubricant S is compressed (pressed) there, with the compressor section 18 functioning as a positive displacement pump. The mixture F then flows from the compressor section 18 through the high-pressure-side compressor section outlet 28 into the high-pressure chamber 30 of the compressor housing 12 .

[0037] The axial direction perpendicular to the housing bottom 14 with respect to the radial direction of the compressor housing 12 and in the direction toward the compressor part 18 is designated by R or A in the adjacent directional diagrams.

[0038] exist Figures 2 to 4 The separating device 32 shown in greater detail in FIG is introduced into the high-pressure chamber 30. The center axis M of the separating device 32 (and thus the axial direction A' and the radial direction R' of the separating device) is oriented with respect to the direction of the separating device 32 according to FIG. Figure 1 The compressor 2 or compressor housing 12 of the compressor is oriented in the radial direction R of the compressor. A separating device 32 is used to separate the lubricant S mixed with the refrigerant K into a lubricant reservoir 34 in the manner of a centrifugal separator. The housing wall 16 has a pipe-shaped or hole-shaped outlet 36, through which the refrigerant K separated from the lubricant S flows into the refrigerant circuit, as indicated by the arrow labeled K.

[0039] The separating device 32 has a hollow cylindrical separating section 32a and a funnel-shaped outlet section 32b for the refrigerant K, which projects into the separating section, forming an annular chamber 38. The separating device 32 is inserted with the separating-side section end 40 of the separating section 32a into a (housing-side) receptacle 42 of the compressor housing, which is connected to the lubricant reservoir 34. The separating device is inserted with the outlet-side separating end 41 of the outlet section 32b into the outlet (outlet connection piece, outlet opening) 36 of the compressor housing 12. The separating device 32 is preferably held solely or exclusively in a form-fitting manner in the compressor housing 12.

[0040] As Figure 2 and Figure 3 It is clearly visible that the separation device 32 is constructed in one piece. In other words, the separation section 32a and the outlet section 32b are constructed continuously (integrally). The separation device 32 is manufactured as a plastic insert for plug assembly, for example, by means of an injection molding method. The funnel-shaped or conical outlet section 32b extends into the hollow cylindrical separation section 32a, forming a transition region 32c. Here, an annular chamber 38 is formed there between the inner wall of the hollow cylindrical separation section 32a and the outer wall of the wall part (wall section) 32d extending into the separation section 32a. An inlet opening 44, which is arranged in the outer wall of the separation section 32a and is in the form of an elongated hole in the embodiment, opens into this annular chamber ( Figure 4 ), the fluid F (refrigerant-oil mixture) composed of refrigerant K and lubricant S flowing into the high-pressure chamber 30 of the compressor module 12 reaches the annular cavity 38 of the separation device 32 through the inlet opening, and the lubricant (oil) S is separated from the refrigerant K by the separation device.

[0041] The fluid F flowing into the separating device 32 via the inlet opening 44 flows spirally (cyclone-like) around the wall section 32 d of the separating device 32 in the direction of the lubricant reservoir 34, wherein the centrifugal forces acting on the refrigerant K contained in the fluid F and on the lubricant S contained in the fluid F act as a separation mechanism. The refrigerant K separated from the lubricant S then flows through the outlet section 32 b and out into the refrigerant circuit via the outlet 36. The separated lubricant S is returned to the stationary scroll 20 and to the bearings (roller bearings or ball bearings) 45 of the electric motor 45 in a manner not shown in detail in order to lubricate and / or cool them.

[0042] according to Figure 3 and Figure 4 The compressor housing 12 has an annular wall 46 on which the stationary scroll 20 is sealed. Figure 1 ) forms the high-pressure chamber 30 of the compressor module 10. An annular housing space 50 is formed between the inner annular wall 46 and the (outer) housing wall 16 of the compressor housing (12).

[0043] In addition, as in Figure 5 and Figure 6 As can be seen more clearly in FIG, a housing wall 52 is provided in the compressor housing 12, which is connected to the outlet 36 and (with respect to the center axis M of the separating device 32) Figure 2 )) extends axially (along the axial direction A') into the high-pressure chamber 30. The housing wall 52 is formed on the annular wall 46 and the housing bottom 14 of the compressor housing 12 or is formed therefrom. The housing wall 52 is formed according to the half shell ( Figure 4 ) type structure, the half shell surrounds the outlet section 32b of the separation device 32 on a part of the periphery of the outlet section.

[0044] according to Figure 2 The separating device 32 has a plurality of positive-locking elements 54. In the exemplary embodiment, two such positive-locking elements 54 are positioned along the circumference of the outlet section 32b of the separating device 32, spaced 180 degrees apart from one another. The positive-locking elements 54 are designed as snap-on or snap-on hooks with radially projecting hook ends 56 (in the radial direction R' with respect to the center axis M of the separating device 32), which extend beyond the circumference of the outlet section 32b. In other words, the (outer) diameter d' of the separating device 32 in the region of the radially projecting hook ends 56 of the positive-locking elements 54 is larger than the (outer) diameter d of the separating device 32 in its axial direction A' between the separating-side segment end 40 and the outlet-side segment end 41.

[0045] As in Figure 5 and 6 As can also be seen in the figure, support webs 58 are formed on the outside of the outlet section 32b of the separating device 32 in a radial direction relative to the center axis M of the separating device 32. In the exemplary embodiment, four such support webs 58 are arranged, each offset by 90°. The support webs 58 are flush with the outer periphery (outer diameter d) of the separating section 32a and extend the funnel-shaped outlet section 32b to the outer diameter d of the separating section 32a of the separating device 32. The support webs 58 serve to prevent the separating device 32 from tilting in the region of the outlet or outlet connection 36 of the compressor housing 12.

[0046] The respective form-locking element 54 is arranged along one of the radial support webs 58. The radial support web 58 along which the respective form-locking element 54 is arranged is axially shortened relative to the center axis M of the separating device 32, forming a web-free axial section along which the respective form-locking element 54 extends axially (in the axial direction A'). The respective form-locking element 54 is formed in the transition section 32c, forming a fixed end 60, in which the funnel-shaped outlet section 32b transitions into the (hollow) cylindrical separating section. From its fixed end 60 at the transition section 32c, the form-locking element 54 does not come into contact along the conically widening outlet section 32b toward its outlet-side section end 41. In other words, the loose ends of the form-fitting elements 54 with the hook ends 56 designed as latching or snap hooks extend at a distance or with a gap along the funnel-shaped or conical outlet section 32 b of the separating device 32 .

[0047] The form-locking element 54 engages in corresponding form-locking contours 62, 64 of the compressor housing 12. The form-locking contour 62 is designed as a radial groove. It extends radially in the housing wall 52, that is, in a radial direction R' with respect to the center axis M of the separating device 32, and opens into the high-pressure chamber 30, i.e., is open toward it. The form-locking contour 64 is designed as an axial groove. It extends axially in the housing wall 52, that is, in an axial direction A' with respect to the center axis M of the separating device 32, and opens into the high-pressure chamber 30, i.e., is open toward it.

[0048] In the exemplary embodiment, the two positive-locking contours 62, 64 are designed as tangential stops for the corresponding positive-locking elements 54. In addition, in the exemplary embodiment, the receptacle 42 of the compressor housing 12, which is connected to the lubricant reservoir 34, serves as a tangential stop for the separating device 32. For this purpose, the receptacle 42 is designed in the manner of a stepped bore, forming an annular contact step 66, on which the separating device 32 rests with its separating-side segment end 41.

[0049] When the separating device 32 is inserted into the compressor housing 12 via the outlet 36, the form-locking element 54 locks with its hook end 56 into the housing-side form-locking contours 62, 64 in a snap-fit ​​manner. The form-locking contours 62, 64 and, if necessary, the contact step 66 form tangential stops as a rotational lock for the separating device 32 and axial stops to prevent axial movement of the separating device 32 in the compressor housing 12. The snap-fit ​​connection between the separating-side form-locking element 54 and the corresponding housing-side form-locking contours 62, 64 secures the separating device 32 in the compressor housing 12 in a form-locking manner and prevents rotation and axial movement. Additional force-locking or friction-locking connections are not necessary and are preferably not provided.

[0050] Figure 7 and Figure 8 A variant of a separating device 32 and its form-fitting, releasable or non-releasable snap-on connection in the compressor housing 12 are shown. Here, the separating device 32 has radially projecting snap-on elements or snap-on hooks (i.e., in the radial direction R') as form-fitting elements 54 at its outlet-side segment end 41. These form-fitting elements are again positioned offset by 180° on the circumference of the separating device 32 at the end of the outlet segment 32b. The corresponding form-fitting contours 62, 64, arranged in the outlet 36, which is again designed as a tube or as a hole, are again designed as radial grooves or axial grooves with tangential stops.

[0051] The claimed invention is not limited to the aforementioned exemplary embodiments. Rather, those skilled in the art may derive further variations of the invention within the scope of the disclosed claims without departing from the subject matter of the claimed invention. Furthermore, all individual features described in conjunction with the various exemplary embodiments may also be combined in other ways within the scope of the disclosed claims without departing from the subject matter of the claimed invention.

[0052] Reference Signs List

[0053] 2 Refrigerant compressor / compressor

[0054] 4 Motor Module

[0055] 5 Electric motor

[0056] 6 rotors

[0057] 8 stator

[0058] 9 Electronics Box

[0059] 10 Compressor module

[0060] 12 Compressor housing

[0061] 14 Shell bottom

[0062] 16 Shell wall

[0063] 18 Compressor part

[0064] 20 Stationary compressor components / scroll

[0065] 22 Moving compressor parts / scrolls

[0066] 24 Compressor section inlet

[0067] 26 Compressor chamber

[0068] 28 Compressor section outlet

[0069] 30 High-pressure chamber

[0070] 32 Separation equipment

[0071] 32a Separation segment

[0072] 32b Exit Section

[0073] 32c Transition Zone

[0074] 32d Wall portion / wall segment

[0075] 34 Lubricant reservoir

[0076] 36 Exit / Exit Takeover

[0077] 38 annular cavity

[0078] 40 Segment end on the separation side

[0079] 41 Segment end on the outlet side

[0080] 42 Accommodation

[0081] 44 Enter the opening

[0082] 45 bearings

[0083] 46 Annular wall

[0084] 48 substrate

[0085] 50 Annular housing cavity

[0086] 52 shell wall

[0087] 54 Form-locking elements

[0088] 54a Fixed end

[0089] 56 Hook end

[0090] 58 Support tab

[0091] 60 fixed end

[0092] 62 Form-locking contour / radial groove

[0093] 64 Form-locking contour / axial groove

[0094] 66 stick to the ladder

[0095] A Axial direction (compressor)

[0096] A' axial direction (separation equipment)

[0097] F Mixture / Fluid

[0098] K Refrigerant

[0099] M Central Axis

[0100] R radial direction (compressor)

[0101] R' radial direction (separation equipment)

[0102] S Lubricant / Oil

[0103] d, d' (outer) diameter

Claims

1. A compressor module (10) comprising: a compressor housing (12) with a high-pressure chamber (30) and an outlet (36) for compressed refrigerant (K); and a separation device (32) accommodated in the compressor housing for separating a lubricant (S) mixed with the refrigerant (K), -in, The separating device (32) has a hollow cylindrical separating section (32a) and a funnel-shaped outlet section (32b) for the refrigerant (K) which projects into the separating section, forming an annular chamber (38). wherein the separating device (32) is inserted with the segment end (40) of the separating segment (32a) into a receptacle (42) of the compressor housing (12) connected to the lubricant reservoir (34), and with the outlet segment (32b) at least partially into the outlet (36), wherein the separating device (32) is held in the compressor housing (12) in a rotationally and / or axially displaceably secured manner by a form-fitting connection, wherein the separating device (32) has, in the region of the outlet section (32b), several form-locking elements (54) which engage in corresponding form-locking contours (62, 64) of the compressor housing (12), and wherein the form-locking contours (62, 64) are arranged on a housing wall (46) connected to the outlet (36) and projecting into the high-pressure chamber (30).

2. The compressor module (10) according to claim 1, It is characterized by: The form-fitting connection is produced by a snap connection.

3. The compressor module (10) according to claim 1 or 2, It is characterized by: The positive-locking elements (54) are arranged spaced apart from one another along the circumference of the outlet section (32b) of the separating device (32).

4. The compressor module (10) according to claim 1 or 2, It is characterized by: The positive-locking elements (54) are arranged at an angle of 180° from one another along the circumference of the outlet section (32b) of the separating device (32).

5. The compressor module (10) according to claim 1, It is characterized by: The form-fitting element (54) projects radially relative to a center axis (M) of the separating device (32) and extends beyond the circumference of the outlet section (32b) and / or the separating section (32a).

6. The compressor module (10) according to any one of claims 1 to 2, It is characterized by: - a supporting web (58) is formed on the outlet section (32b) of the separating device (32) on the outside in a radial direction with respect to the center axis (M) of the separating device, and The form-fitting element (54) is arranged along one of the radial supporting webs (58) and / or is formed therefrom.

7. The compressor module (10) according to claim 1, It is characterized by: The housing wall (46) partially surrounds an outlet section (32b) of the separating device (32).

8. The compressor module (10) according to claim 1, It is characterized by: The housing wall (46) surrounds the outlet section (32b) of the separating device (32) in a half-shell manner.

9. The compressor module (10) according to claim 1, It is characterized by: - one of the form-locking contours (62) is designed as a radial groove, and / or - one of the form-locking contours (64) is designed as an axial groove, and / or At least one of the form-locking contours (62, 64) is designed as or functions as a tangential and / or axial stop for the corresponding form-locking element (54).

10. The compressor module (10) according to any one of claims 1 to 2, It is characterized by: A receptacle (42) of the compressor housing (12) connected to the lubricant reservoir (34) is designed as an axial stop for the separating device (32).

11. The compressor module (10) according to any one of claims 1 to 2, It is characterized by: A receptacle (42) of the compressor housing (12) connected to the lubricant reservoir (34) and having a contact step (66) is designed as an axial stop for the separating device (32).

12. An electric refrigerant compressor (2) for compressing a refrigerant (K) for a motor vehicle, comprising a compressor module (10) according to claim 1 and a motor module (4) with an electric motor (5).

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