HOUSING ARRANGEMENT AND DEVICE

Description

[0001] The present invention relates to a housing arrangement for a detecting and / or emitting device and to a detecting and / or emitting apparatus having such a housing arrangement.

[0002] Liquid droplets and / or dirt particles on a detection device, such as a camera lens or the aperture of a high-frequency radar sensor, can cause disturbances in the captured image, such as artifacts, blurriness, unwanted attenuation, or lens flare. This can occur due to raindrops, but also due to water mist, for example, in maritime environments or off-road, especially near the road surface. Windshield wipers are typically used in these cases to continuously clean a windshield positioned in front of the detection device.

[0003] However, with such intermittent operation of windshield wipers, continuous visibility through the windshield between wipes is not guaranteed. Furthermore, the mechanics of windshield wipers are delicate and prone to failure, as they are located directly in the dirty and / or wet environment. Some technical processes, such as automatic object tracking, also do not allow for interrupted visibility by windshield wipers.

[0004] DE 10 2011 003 069 A1 discloses a camera unit provided in a hollow portion of an electric motor. A rotor is rotatably mounted on an outer periphery of a stator. A cylindrical motor housing is attached to the rotor. A lens cover is attached to the motor housing at a position of a front side of a lens of the camera unit. The lens cover is rotated together with the motor housing and the rotor so that a deposit adhering to an outer surface of the lens cover is removed by centrifugal force.

[0005] DE 717 240 C describes a window with a rotating pane that is driven and mounted around its periphery. The window comprises an annular electric motor enclosing the pane, the rotor of which, mounted around its periphery, serves as a support for the pane.

[0006] DE 10 2015 111 281 A1 shows a camera for a motor vehicle with a housing arrangement and with a lens device which comprises at least one lens and which is formed at least partially from an electrically conductive material, wherein the housing arrangement has a through opening into which the lens device is at least partially introduced.

[0007] Against this background, it is an object of the present invention to provide an improved housing arrangement for a sensing and / or emitting device.

[0008] According to claim 1, a housing arrangement for a detecting and / or emitting device is proposed. The housing arrangement comprises a housing for the device, a centrifugal disc mounted in the housing for rotation about a rotational axis, a drive device for driving the centrifugal disc, and a tubular coupling element mounted in the housing for rotation about the rotational axis for coupling the drive device to the centrifugal disc. The coupling element is firmly connected to the centrifugal disc at an edge region thereof, with the drive device being configured to directly drive the coupling element. The coupling element is arranged within the drive device.

[0009] Because the centrifugal disc is rotatably mounted within the housing and can be driven by the drive system, water droplets and / or dirt particles adhering to the centrifugal disc are flung radially outward by centrifugal forces. A windshield wiper or scraper is therefore unnecessary. Because the coupling element is firmly connected to the centrifugal disc at an edge and not in the area of ​​the rotational axis, the central viewing area of ​​the centrifugal disc is not obscured by a central drive axis or bearing.

[0010] Further advantageous embodiments and aspects of the invention are the subject of the dependent claims and the exemplary embodiments of the invention described below. The invention will be explained in more detail below using preferred embodiments with reference to the accompanying figures. Fig. 1 shows a schematic perspective view of a sensing and / or emitting device; Fig. 2 shows a schematic perspective sectional view of the device according to Fig. 1 ; Fig. 3 shows a schematic front view of the device according to Fig. 1 ; Fig. 4 shows a schematic sectional view of the device according to the section line IV-IV of Fig. 3 ; Fig. 5 shows the detailed view V according to Fig. 4 ; Fig. 6 shows the detailed view VI according to Fig. 5 ; and Fig. 7 shows a schematic sectional view of an embodiment of a centrifugal disc for the device according to Fig. 1 .

[0011] In the figures, identical or functionally equivalent elements have been given the same reference numerals unless otherwise stated.

[0012] The Fig. 1 shows a schematic perspective view of a detecting and / or emitting device 1, which Fig. 2 shows a schematic perspective sectional view of the device 1, the Fig. 3 shows a schematic front view of the device 1, the Fig. 4 shows a schematic sectional view of the device 1 according to the section line IV-IV of Fig. 3 , the Fig. 5 shows the detailed view V according to the Fig. 4 , and the Fig. 6 shows the detailed view VI according to the Fig. 5 . The following refers to the Fig. 1 bis 6 referred to at the same time.

[0013] The detecting and / or emitting device 1 is particularly configured to detect and / or emit electromagnetic radiation. Therefore, the detecting and / or emitting device 1 can also be referred to as an electromagnetic radiation detecting and / or emitting device 1. Examples of electromagnetic radiation include radio waves, microwaves, thermal radiation, light, X-rays, and gamma radiation. However, the detecting and / or emitting device 1 will be referred to hereinafter only as device 1.

[0014] The device 1 comprises a detecting and / or emitting device 2 configured to detect and / or emit electromagnetic radiation. Therefore, the detecting and / or emitting device 2 can also be referred to as an electromagnetic radiation detecting and / or emitting device 2. However, the detecting and / or emitting device 2 will be referred to below only as device 2. The device 2 is part of the device 1. The device 1 can comprise multiple devices 2. The device 2 is interchangeable as desired.

[0015] The device 2 can, for example, be any sensor designed to detect signals, in particular in the form of electromagnetic radiation. In particular, the device 2 is an imaging device 2, such as a camera. In this case, the device 2 is a purely detecting device 2. The device 2 can then, for example, comprise a lens 3 and a camera housing 4. The lens 3 can comprise a lens 5. Alternatively, the device 2 can, for example, also be a radar sensor or the like. The device 2 can also be a laser scanner. In this case, the device 2 is a detecting and emitting device 2. The device 2 can also be a light source, in particular a headlight.

[0016] The device 1 is designed for use on or in vehicles, such as aircraft, land vehicles, or watercraft. Furthermore, the device 1 can also be used for immobile applications, for example, for drilling rigs, machining centers, milling machines, production lines, or the like. The device 1 is particularly suitable for outdoor use in very dirty and / or wet environments, such as on or in off-road vehicles or seagoing vessels, or in difficult-to-access installation locations, such as mast or tower installations.

[0017] The device 1 comprises, in addition to the device 2, a housing arrangement 6. The housing arrangement 6 comprises a housing 7 in which the device 2 is accommodated, and a centrifugal disc 8 mounted in the housing 7 so as to be rotatable about a rotation axis D. The centrifugal disc 8 can also be referred to as a disc, transparent disc or Kent disc.

[0018] The housing 7 comprises a front wall 9, a rear wall 10 arranged at a distance from the front wall 9 and preferably parallel thereto, a first side wall 11, and a second side wall 12 arranged at a distance from the first side wall 11. The side walls 11, 12 can be V-shaped or arranged parallel to one another. The housing 7 further comprises a base 13 from which holders 14, 15 extend in the direction of the device 2. The holders 14, 15 support the device 2, in particular the camera housing 4 and the lens 3.

[0019] Furthermore, a connection piece 16 can be provided on the base 13, by means of which the housing 7 can be subjected to excess pressure. Furthermore, a cable duct 17 can also be provided on the base 13, through which electrical cables can be introduced into the housing 7. The housing 7 can further comprise a cover (not shown) that is placed on an upper edge 18 of the housing 7 and connected to it in a watertight manner. The housing 7 can be made, for example, from a metal, for example an aluminum alloy or a steel alloy, a plastic and / or a composite material. The materials can also be combined.

[0020] The housing 7 can, as previously explained, be box-shaped and configured to accommodate the device 2. In this case, the device 2 can be arranged inside, in particular completely inside, the housing 7. The housing 7 can also be pot-shaped. In this case, the housing 7 can have a circumferential cylindrical wall. However, the housing 7 does not necessarily have to be suitable for accommodating the device 2. The housing 7 can also be flange-mounted directly onto the device 2. In this case, the housing 7 can be, for example, annular, plate-shaped, or flange-shaped. The housing 7 can then, for example, only comprise the plate-shaped front wall 9. The device 2 can thus be arranged at least partially or completely outside the housing 7. The housing arrangement 6 can thus be mounted directly onto the device 2, for example as a retrofit part.

[0021] The housing 7 can also comprise the front wall 9 and, in sections, the side walls 11, 12 and the base 13, but not the rear wall 10. This means that the side walls 11, 12 and the base 13 are cut off in this case. The housing 7 can also be of modular construction, with the centrifugal disc 8 being accommodated in a first housing section and the device 2 being accommodated in a second housing section that can be connected to the first housing section or flanged thereto.

[0022] A multi-stage opening or a multi-stage bore 19 is provided in the front wall 9 and is constructed rotationally symmetrically to the axis of rotation D. The bore 19 has a first section 20, a second section 21 arranged adjacent to the first section 20, and a third section 22 arranged adjacent to the second section 21. The second section 21 is positioned between the first section 20 and the third section 22. A diameter of the second section 21 is greater than a diameter of the first section 20, and a diameter of the third section 22 is greater than the diameter of the second section 21. This results in a stepped geometry of the bore 19. The sections 20 to 22 are each circular-cylindrical in shape and constructed rotationally symmetrically to the axis of rotation D.The device 2, in particular the lens 3 of the device 2, can be arranged at least partially within the bore 19.

[0023] As previously mentioned, the housing arrangement 6 comprises the centrifugal disc 8 accommodated in the housing 7. The centrifugal disc 8 preferably has a circular geometry which is rotationally symmetrical to the rotational axis D. This means that the rotational axis D is simultaneously a central or symmetry axis of the centrifugal disc 8 and the bore 19. The centrifugal disc 8 is designed to rotate about the rotational axis D at a high speed of, for example, 6,000 to 15,000 revolutions / minute or more. Because the centrifugal disc 8 rotates about the rotational axis D, the centrifugal force acting on it causes fuels, oils, splash water, dirt particles such as sand or salt, raindrops and the like to be thrown in a radial direction R ( Fig. 3 ) of the centrifugal disc 8 are thrown outwards, whereby the centrifugal disc 8 is always free of liquids and / or dirt particles during operation.

[0024] The centrifugal disc 8 has, as shown in the Fig. 5 shown, an outer side 23 facing an environment U of the housing 7 and facing away from an interior space I of the housing 7, and an inner side 24 facing away from the environment U and facing the interior space I. The outer side 23 can be coated with a first coating 25 and the inner side 24 can be coated with a second coating 26. The first coating 25 is preferably hydrophilic. Hydrophilicity means water-loving, which means that a substance interacts strongly with water. For example, the first coating 25 can be a titanium dioxide coating (TiO 2 coating). In this case, the first coating 25 allows polar liquids, such as water, to spread easily and / or flow off. This means that a thin film of water is formed which does not obstruct the view through the centrifugal disk 8.Alternatively, the first coating 25 may be, for example, a hydrophobic, i.e., water-avoiding, nanocoating that does not allow liquids and / or dirt particles to adhere.

[0025] The second coating 26 provided on the inner side 24 can, for example, be a shielding indium tin oxide (ITO) coating. Indium tin oxide is a semiconducting material that is largely transparent in visible light. Alternatively, the second coating 26 can also be an anti-reflective coating or a combination of an anti-reflective coating and an ITO coating. In the case of so-called EMC (electromagnetic compatibility) shielding using an ITO coating, the centrifugal disc 8 can be conductively connected to the housing 7. For this purpose, a sliding contact can be provided, for example.

[0026] The centrifugal disc 8 is preferably made of glass or a plastic, such as polycarbonate (PC). The centrifugal disc 8 can also be made of laminated glass. The centrifugal disc 8 is transparent. In particular, the centrifugal disc 8 is transparent in an electromagnetic spectrum relevant to the function of the device 2. This means that the centrifugal disc 8 can be opaque to visible light. The centrifugal disc 8 is preferably formed from a single piece of material. The centrifugal disc 8 is preferably flat or planar. Depending on the application and / or the type of device 2 used, the centrifugal disc 8 can also be curved, in particular concavely or convexly curved.

[0027] The housing arrangement 6 further comprises a drive device 27 which is accommodated in the housing 7. The drive device 27 is designed to drive the centrifugal disc 8 in order to rotate it about the rotational axis D. For this purpose, the drive device 27 applies a drive torque or torque DM ( Fig. 3 ) onto the centrifugal disc 8. The torque DM can be adjusted as shown in the Fig. 3 shown, clockwise, or alternatively counterclockwise. This means that the centrifugal disc 8 can rotate clockwise or counterclockwise during operation of the drive device 27. The drive device 27 can be configured to reverse the direction of rotation of the centrifugal disc 8.

[0028] The drive device 27 is coupled to the centrifugal disc 8 in such a way that the torque DM, viewed in the radial direction R, is transmitted to the centrifugal disc 8 at a distance from the axis of rotation D. This means that the torque DM is not transmitted to the centrifugal disc 8 in the center of the centrifugal disc 8, i.e., at the axis of rotation D, but rather at an edge region 28. The centrifugal disc 8 is thus divided into a viewing area 29, behind which the device 2, in particular the lens 5 of the objective 3, is arranged, and into the edge region 28, which runs in a ring around the viewing area 29. The viewing area 29 is disk-shaped and rotationally symmetrical to the axis of rotation D. The edge region 28 can be opaque. However, the viewing area 29 is transparent at least in the electromagnetic spectrum relevant to the device 2.

[0029] To apply the torque DM from the drive device 27 to the centrifugal disc 8, a coupling element 30 is provided for torque transmission. The coupling element 30 is tubular. The coupling element 30 can also be referred to as a tube or coupling tube. The coupling element 30 comprises, as shown in the Fig. 5 and 6 shown, a cylindrical wall 31, which is rotationally symmetrical to a central or symmetry axis M1. The symmetry axis M1 can coincide with the rotation axis D of the centrifugal disc 8. At least the symmetry axis M1 and the rotation axis D are coaxial. The coupling element 30 can be made of a metal, a plastic, or a composite material.

[0030] The coupling element 30 further comprises an annular fastening section 32 formed integrally with the wall 31, which is also rotationally symmetrical to the axis of symmetry M1. The fastening section 32 comprises an annular end face 33, to which the centrifugal disc 8, and in particular the edge region 28 of the centrifugal disc 8, is firmly connected. The torque DM is transmitted from the coupling element 30 to the centrifugal disc 8 via the end face 33 and the edge region 28. For example, the end face 33 is integrally connected to the edge region 28, in particular glued or clamped. The end face 33 is set back from a front side 34 of the fastening section 32.

[0031] Facing away from the front side 34, the fastening section 32 further comprises a rear side 35 facing the drive device 27. A shoulder 36 is provided on the fastening section 32, parallel to and spaced from the rear side 35. The drive device 27 can rest against the shoulder 36. The fastening section 32 further comprises a shoulder 37 provided parallel to and spaced from the front side 34.

[0032] The coupling element 30 together with the centrifugal disc 8 is sealed against the housing 7 by means of a sealing device 38. The sealing device 38 comprises, as shown in the Fig. 6 shown, a gap seal or labyrinth seal 39, which is rotationally symmetrical to the axis of symmetry M1. The labyrinth seal 39 comprises a first sealing element 40, which is connected in a rotationally fixed manner to the fastening section 32 of the coupling element 30. For example, the first sealing element 40 rests against the shoulder 37 of the fastening section 32.

[0033] The labyrinth seal 39 further comprises a second sealing element 41, which is preferably also rotationally symmetrical to the axis of symmetry M1 and is connected to the housing 7 in a rotationally fixed manner. A gap 42, which is labyrinth-shaped or meander-shaped, is provided between the first sealing element 40 and the second sealing element 41. Because the gap 42 is provided between the first sealing element 40 and the second sealing element 41, the sealing elements 40, 41 do not touch each other. As a result, the labyrinth seal 39 does not generate any friction during operation of the drive device 27.

[0034] The second sealing element 41 is accommodated in a receiving ring 43, which is sealed against the third section 22 of the bore 19 by means of a sealing element 44, in particular an O-ring. For this purpose, a groove for the sealing element 44 can be provided in the receiving ring 43. The receiving ring 43, which has a stepped cross-section, is accommodated at least in sections in the third section 22 of the bore 19. The receiving ring 43 is constructed rotationally symmetrically to the axis of symmetry M1. The receiving ring 43 is screwed to the front wall 9 of the housing 7 by means of a plurality of fastening elements 45, in particular cylinder head screws.

[0035] The sealing device 38 further comprises a sealing lip 46 provided on the labyrinth seal 39, which is annular and rotationally symmetrical to the axis of symmetry M1. The sealing lip 46 covers the gap 42 of the labyrinth seal 39 towards the environment U. In the event that the interior space I is pressurized relative to the environment U, air or gas flows outward through the gap 42 into the environment U and lifts the sealing lip 46. This prevents the sealing lip 46 from generating friction when the centrifugal disk 8 rotates. The sealing lip 46 can be firmly connected to the first sealing element 40 or firmly to the second sealing element 41. The sealing lip 46 is preferably fastened to the second sealing element 41. The sealing lip 46 is made of a flexible material, for example silicone.

[0036] The drive device 27 is designed to directly drive the coupling element 30 and thus the centrifugal disc 8. This means that the drive device 27 is not coupled to the coupling element 30 by means of a gear, toothed belt, or the like. In other words, the coupling between the drive device 27 and the coupling element 30 is gear-free and / or transmission-free. The drive device 27 is annular and is preferably rotationally symmetrical to a central or symmetry axis M2. The symmetry axis M2 coincides with the rotation axis D and the symmetry axis M1. In particular, the rotation axis D and the symmetry axes M1, M2 are positioned coaxially. This means that the centrifugal disc 8, the coupling element 30, and the drive device 27 are positioned coaxially to one another and each have a rotationally symmetrical design.

[0037] The drive device 27 is accommodated in the second section 21 of the bore 19, wherein the drive device 27 is arranged between the second section 21 and the wall 31 of the coupling element 30, viewed in the radial direction R. The drive device 27 transmits the torque DM directly to the wall 31 and thus directly to the coupling element 30. The drive device 27 is positioned on the outside of the wall 31. In an embodiment of the housing arrangement 6 (not shown), however, the drive device 27 can also be positioned on the inside of the wall 31.

[0038] The drive device 27 comprises, as shown in the Fig. 6 shown, a drive element 47. The drive element 47 is preferably an electric motor, in particular a brushless induction motor. The drive device 27 further comprises at least one bearing element 48, which is suitable both for supporting the drive element 47 and for supporting the coupling element 30 in the housing 7. The bearing element 48 is preferably a magnetic bearing or air cushion bearing. However, the bearing element 48 can also be a rolling bearing, such as a ball bearing, a roller bearing, or a tapered bearing. In particular, the bearing element 48 is lubrication-free. The bearing element 48 can, for example, have ceramic rolling elements.

[0039] Preferably, the bearing element 48 simultaneously forms a motor bearing for the drive element 47 and the bearing for the coupling element 30 in the housing 7. The drive element 47 and the bearing element 48 are preferably both rotationally symmetrical to the axis of symmetry M2 of the drive device 27. The drive device 27 is designed to drive the coupling element 30 circumferentially on the outside, i.e., facing the bore 19. Alternatively, the drive device 27, as already mentioned, can also be arranged within the coupling element 30 and drive it from the inside. In this case, an additional bearing element is provided on the outside of the coupling element 30. The coupling element 30 is preferably a rotor of the drive device 27, in particular of the drive element 47.

[0040] The housing arrangement 6 further comprises a compressor 49 ( Fig. 6 ), which is designed to apply pressure to the gap 42 and to lift the sealing lip 46 from the gap 42. The compressor 49 comprises a plurality of compressor blades 50 which are fastened to an annular fastening section 51. The annular fastening section 51 is fastened on the outside to the wall 31 of the coupling element 30. The drive device 27 is then positioned between the fastening section 32 of the coupling element 30 and the compressor 49. The compressor 49 is preferably formed in one piece, in particular from one piece of material, and is constructed rotationally symmetrical to the axes of symmetry M1, M2. The compressor 49 can be made of a metal, a plastic or a composite material.

[0041] A cover element 52 is also provided on the front wall 9 of the housing. The cover element 52 serves, for example, as a sunshade and / or splash guard.

[0042] The housing 7 can be provided with optional surface heating elements 54 ( Fig. 2 ). The surface heating elements 54 are mat-shaped and can be mounted anywhere on the inside of the housing 7. As an alternative to the surface heating elements 54, electrical heating resistors can be provided. The centrifugal disc 8 can also be heated, for example, by means of warm air passing through the gap 42 of the labyrinth seal 39. Furthermore, the waste heat from the drive device 27 can also heat the centrifugal disc 8.

[0043] Furthermore, an eddy current heating element 55 ( Fig. 2 ) may be provided. The surface heating elements 54 and the eddy current heating element 55 can be part of a heating device 56 of the housing arrangement 6. The eddy current heating element 55 can be a fixed magnet fastened to the housing 7. In this case, the eddy current heating element 55 also heats the coupling element 30, which is then preferably made of a material with good electrical conductivity. When the coupling element 30 rotates relative to the eddy current heating element 55, waste heat is generated in the coupling element 30 by the resulting eddy currents, which directly heats the coupling element 30. The centrifugal disk 8 can then be heated by the coupling element 30 via heat conduction. Alternatively, the centrifugal disk 8 can also be heated inductively or ohmically with the aid of sliding contacts or the like.

[0044] The Fig. 7 shows a sectional view of a further development of the centrifugal disc 8. The embodiment of the centrifugal disc 8 according to the Fig. 7 differs from the embodiment of the previously explained centrifugal disc 8 in that it is not flat or level but pot-shaped.

[0045] The centrifugal disc 8 comprises a fastening section 57 that is rotationally symmetrical to the rotation axis D, is annular, and is firmly connected to the fastening section 32 of the coupling element 30. The centrifugal disc 8 further comprises a tubular wall section 58 that is rotationally symmetrical to the rotation axis D. The wall section 58 can be circular-cylindrical or frustoconical. The centrifugal disc 8 further comprises a base section 59 that closes off the front of the centrifugal disc 8. With this configuration of the centrifugal disc 8, the device 2 can extend out of the housing 7 into the wall section 58. In this case, the device 2 can be designed, for example, as a laser scanner.

[0046] The device 2 can also be encapsulated within the housing 7 in another housing (not shown). This allows the device 2 to be flooded with a protective gas or inert gas, such as nitrogen.

[0047] The functionality of the housing assembly 6 is summarized below. When the centrifugal disc 8 is stationary, the sealing lip 46 rests against the labyrinth seal 39, sealing the gap 42. This prevents liquid and / or dirt particles from penetrating the housing 7 when the centrifugal disc 8 is stationary. As soon as the drive device 27 drives the coupling element 30, the centrifugal disc 8 rotates about the rotational axis D. As previously mentioned, the centrifugal disc 8 can reach a speed of approximately 6,000 to 15,000 revolutions per minute.

[0048] By pressurizing the gap 42 of the labyrinth seal 39 with the aid of the compressor 49 or by pressurizing the entire interior space I with the aid of an external pressure supply, the gap 42 is subjected to excess pressure, whereby the sealing lip 46 is lifted from the labyrinth seal 39. As a result, air constantly flows from the interior space I via the gap 42 into the environment U, whereby the sealing lip 46 is deformed. In the pressurized state, the sealing lip 46 is widened and thus loses contact with the first sealing element 40, i.e., with the coupling element 30. Due to the continuous air flow from the interior space I into the environment U, no liquid and / or dirt particles can penetrate through the gap 42 into the housing 7. However, in the event of a pressure loss, the sealing lip 46 closes again and thus closes the gap 42.

[0049] The cleaning effect of the centrifugal disc 8 is thus achieved by its rotating movement. Due to the centrifugal forces on or near the outer side 23 of the centrifugal disc 8, liquid droplets and contaminants are ejected outward in the radial direction R. No wiper or the like is required to remove liquid and / or dirt particles. Because the drive device 27 does not drive the centrifugal disc 8 centrally on the rotational axis D, but rather via the tubular coupling element 30, the viewing area 29 of the centrifugal disc 8 is kept clear. This allows for unobstructed visibility through the centrifugal disc 8.

[0050] This results in a compact, coaxial design of the coupling element 30 and the drive device 27. The centrifugal disc 8 is driven directly, i.e., not by means of a gear, along the entire outer circumference of the coupling element 30, in particular the wall 31. For this purpose, the drive device 27 preferably comprises the drive element 47 in the form of a brushless induction motor. The coupling element 30 is also mounted on its outer circumference, preferably frictionlessly, for example, using a magnetic bearing. Ideally, this also serves as the motor bearing.

[0051] Sealing against the environment U is reliably achieved by means of the labyrinth seal 39. Alternatively, a contact seal, for example in the form of a lip seal or a radial shaft seal, can also be used. The penetration of liquid and / or dirt particles through the labyrinth seal 39 is prevented by pressurizing the gap 42 from the interior I. The compressor 49 can be used for this purpose.

[0052] Alternatively, the pressure can also be applied externally via the connection piece 16.

[0053] Although the present invention has been described using exemplary embodiments, it can be modified in many ways. LIST OF REFERENCE SYMBOLS

[0054] 1Device 2Device 3Objective 4Camera housing 5Lens 6Housing arrangement 7Housing 8Slinger disc 9Front wall 10Rear wall 11Side wall 12Side wall 13Bottom 14Holder 15Holder 16Connection piece 17Cable feedthrough 18Top edge 19Hole 20Section 21Section 22Section 23Outside 24Inside 25Coating 26Coating 27Drive device 28Edge area 29Viewing area 30Coupling element 31Wall 32Fastening section 33End face 34Front 35Rear 36Shoulder 37Shoulder 38Sealing device 39Labyrinth seal 40Sealing element 41Sealing element 42Gap 43Receiving ring 44 Sealing element 45 Fastening element 46 Sealing lip 47 Drive element 48 Bearing element 49 Compressor 50 Compressor blade 51 Fastening section 52 Aperture element 53 Washer nozzle 54 Surface heating element 55 Eddy current heating element 56 Heating device 57 Fastening section 58 Wall section 59 Floor section DRotation axis DMTorque IInterior M1Symmetry axis M2Symmetry axis RRadial direction UMenvironment

Claims

1. A housing arrangement (6) for a capturing and / or emitting mechanism (2), comprising: a housing (7) for the mechanism (2), a centrifugal screen (8) that is supported rotatable around a rotation axis (D) in the housing (7), a driving mechanism (27) for driving the centrifugal screen (8), and a tube-shaped coupling element (30) that is supported rotatable around the rotation axis (D) in the housing (7) for coupling the driving mechanism (27) to the centrifugal screen (8), wherein the coupling element (30) is firmly connected to the centrifugal screen (8) at a boundary area (28) thereof, wherein the driving mechanism (27) is configured to drive the coupling element (30) directly, characterized in that the coupling element (30) is arranged inside the driving mechanism (27).

2. The housing arrangement according to claim 1, wherein the centrifugal screen (8), the coupling element (30) and the driving mechanism (27) are arranged coaxially.

3. The housing arrangement according to claim 1 or 2, wherein the centrifugal screen (8) is flat or pot-shaped.

4. The housing arrangement according to one of claims 1 to 3, wherein the driving mechanism (27) comprises a driving element (47), in particular a brushless induction motor.

5. The housing arrangement according to claim 4, wherein the coupling element (30) is a rotor of the driving element (47).

6. The housing arrangement according to claim 4 or 5, wherein the driving mechanism (27) comprises a bearing element (48) for bearing the driving element (47), the centrifugal screen (8) and the coupling element (30) in the housing (7).

7. The housing arrangement according to one of claims 1 to 6, comprising a sealing mechanism (38) for circumferentially sealing the coupling element (30) against the housing (7).

8. The housing arrangement according to claim 7, wherein the sealing mechanism (38) comprises a labyrinth seal (39) and a sealing lip (46) for sealing a gap (42) of the labyrinth seal (39).

9. The housing arrangement according to claim 7 or 8, comprising a compressor (49) for pressurizing the sealing mechanism (38).

10. The housing arrangement according to one of claims 1 to 9, wherein the centrifugal screen (8) comprises a hydrophobic or hydrophilic coating (25) on its outer side and / or an electromagnetic shielding and / or antireflective coating (26) on its inner side.

11. The housing arrangement according to one of claims 1 to 10, comprising a heating mechanism (56) for heating the housing (7) and / or the centrifugal screen (8).

12. The housing arrangement according to claim 11, wherein the heating mechanism (56) comprises panel heating elements (54) that are provided at the housing (7) and / or an eddy current heating element (55) that is provided at the coupling element (30).

13. A capturing and / or emitting device (1), comprising: a housing arrangement according to one of claims 1 to 12, and a capturing and / or emitting mechanism (2).