System for providing compressed air for at least one compressed air consumer and / or compressed air reservoir, and motor vehicle having the system

Abstract

The invention relates to a system (10) for providing compressed air for at least one compressed air consumer and / or for at least one compressed air reservoir of a motor vehicle (100), and to a motor vehicle (100) comprising the system (10). The system (10) has an electrical energy store device (12) and an air conveying means (22). The electrical energy store device (12) has an energy store housing (14). The energy store housing (14) has an air inlet opening (16), an air outlet opening (18) and an air duct (20). Air (11) can flow through the energy store housing (14) from the air inlet opening (16) through the air duct (20) to the air outlet opening (18), in order to separate particles from the air (11) flowing through the air duct (20). The air conveying means (22) is designed to convey the air (11) out of the energy store housing (14) via the air outlet opening (18). The air conveying means (22) is also designed to provide the air conveyed out of the energy store housing (14) via the air outlet opening (18) to the at least one compressed air consumer (102) and / or the at least one compressed air reservoir.

Description

[0001] System for providing compressed air for at least one compressed air consumer and / or compressed air storage and motor vehicle, comprising the system

[0002] Description

[0003] The invention relates to a system for providing compressed air for at least one compressed air consumer and / or for at least one compressed air reservoir of a motor vehicle and a motor vehicle comprising the system.

[0004] Certain motor vehicles, such as commercial vehicles, can be equipped with compressed air consumers (e.g., air brake systems, air suspension systems, etc.) and / or a compressed air reservoir. Air compressors, for example, are used to supply these air pressure consumers and / or this compressed air reservoir with compressed air. In combustion engines, the air compressors are currently driven by the traction motor or, in electric vehicles, independently by a drive unit (e.g., an electric motor).

[0005] In known solutions with combustion engines, the air compressor is positioned behind the cab of a commercial vehicle, for example, and draws its air from the already filtered intake air of the combustion engine. Since the rear of the vehicle typically experiences greater and / or heaviest levels of contamination (e.g., due to self-dusting), which can impair the function of the air compressor and / or the compressed air consumers and / or the compressed air reservoir, the rear, side, or other areas of the vehicle exposed to heavy contamination have not yet been used for positioning the air compressor.

[0006] This has several disadvantages. For example, this positioning in the front of the vehicle (e.g., particularly for tractor units in solo operation without a trailer, which can be comparatively top-heavy) can have an adverse effect on the axle load distribution and / or the handling of the motor vehicle or commercial vehicle. Furthermore, the noise emitted by the air compressor drive unit and / or the air compressor itself can be disturbing, distracting, and / or tiring for passengers. The latter applies particularly to (e.g., fully) electrically powered vehicles (since, for example, an internal combustion engine is either absent or of smaller dimensions, so that the noise of the air compressor drive unit is not drowned out).Therefore, the object of the invention is to provide a particularly improved and / or alternative technology for providing compressed air to at least one compressed air consumer and / or at least one compressed air reservoir of a motor vehicle. In particular, it is an object of the invention, for example, to provide a technology that improves driving behavior and / or acoustics. Furthermore, it is an object of the invention to prevent the air compressor from being supplied with contaminated air.

[0007] The problem is solved by the features of the independent claims. Advantageous further developments are specified in the dependent claims and the description.

[0008] According to a first general aspect of the invention, a system for providing compressed air for at least one compressed air consumer and / or for at least one compressed air reservoir of a motor vehicle (e.g. a commercial vehicle) is provided.

[0009] The system comprises an electrical energy storage device and an air conveying device.

[0010] The electrical energy storage device comprises an energy storage housing (e.g., a battery box or rear battery box). The energy storage housing has an air inlet opening, an air outlet opening, and an air duct. Air can flow through the energy storage housing from the air inlet opening through the air duct to the air outlet opening in order to separate particles (e.g., dust particles, dirt particles, and / or snow particles) from the air flowing through the air duct.

[0011] The air conveying device is designed to convey (e.g., by suction or pumping) the air (e.g., air flowing from the air inlet opening through the air duct to the air outlet opening) out of the energy storage housing via the air outlet opening. The air conveying device is further designed to supply the air conveyed from the energy storage housing via the air outlet opening (e.g., as compressed air) to the at least one compressed air consumer and / or the at least one compressed air reservoir.

[0012] One advantage, for example, may be that the rear of the vehicle can also be used to position the comparatively heavy air delivery system. This can have a beneficial effect on axle load distribution and / or the driving dynamics of the vehicle, for example. Furthermore, the (e.g. main) compressed air consumers (particularly in heavy commercial vehicles) are typically located in the rear of the vehicle. This eliminates the need for an intake line to the previously used intake point (e.g. at the top of the rear end of the driver's cab) and / or (e.g. comparatively large) air filters. Furthermore, by positioning the air delivery system in the rear, unavoidable (acoustic) sources of interference (e.g. the air delivery system) can be positioned as far away from the driver's cab as possible. Overall, this allows for more flexible positioning of the air delivery system.The existing electrical energy storage device can thus advantageously be used in a kind of dual function as an air filter and / or cyclone filter and / or labyrinth filter for the air conveying system. In other words, this avoids the direct intake of air from the environment, but rather allows the energy storage housing to function as a kind of "additional container" from which the air is drawn. This can offer advantages in terms of cost and / or packaging. It is also conceivable that the air conveying system can thus be operated more safely (particularly compared to motor vehicles where the intake air is extracted behind the driver's cab).

[0013] The air duct can extend within the energy storage housing between the air inlet opening and the air outlet opening and / or fluidly connect the air inlet opening to the air outlet opening.

[0014] The air duct may be designed to separate particles from the air flowing through the air duct.

[0015] According to one embodiment, the electrical energy storage device can have a plurality of battery units. The battery units preferably comprise a plurality of battery modules. The plurality of battery units can be arranged within the energy storage housing (e.g., spaced apart from one another).

[0016] The air duct can be defined, at least in sections, by spaces (e.g., free spaces) between the (e.g., adjacent battery units of) the plurality of battery units. Alternatively or additionally, the air duct can be defined by spaces (e.g., free spaces) between (e.g., one battery unit of) the plurality of battery units and the energy storage housing.

[0017] This allows the battery units to be advantageously flowed around in order to separate the particles from the air flowing in the air duct.

[0018] According to one embodiment, the air duct can extend within the energy storage housing in such a way that the air flowing through the air duct is deflected (e.g., several times) in order to separate the particles (e.g., by means of the cyclone effect and / or by means of centrifugal force separation) from the air flowing through the air duct.

[0019] According to one embodiment, the energy storage housing (e.g., the inner wall structure) and / or the plurality of battery units (e.g., each) can have edge regions. The air duct can extend within the energy storage housing such that the air flowing through the air duct flows around the edge regions at least in sections. The edge regions can, for example, be acute-angled and / or sharp-edged.

[0020] The air duct can extend within the energy storage housing in such a way that the air flowing through the air duct is deflected at the respective edge region.

[0021] The edge areas can thus advantageously fulfil the function of a cyclone and / or a centrifugal separator in order to separate the particles from the air flowing through the air duct.

[0022] According to one embodiment, the air duct can extend at least partially in a labyrinthine and / or meandering manner (e.g. at least partially around the battery units) within the energy storage housing.

[0023] The energy storage housing can, for example, be designed in such a way that the air flowing in the air duct must pass through a kind of labyrinth and / or meander structure.

[0024] It is conceivable that the energy storage housing (e.g. the battery box) is aerodynamically designed and / or optimized for particle separation.

[0025] This can, for example, increase the distance traveled by the air in the air duct, thereby increasing the amount of particles removed from the air.

[0026] According to one embodiment, the energy storage housing can have an inner wall structure. The inner wall structure can be arranged within the energy storage housing. The air duct can be defined at least in sections by air passage openings in the inner wall structure and / or by air passage openings between the inner wall structure and the plurality of battery units. According to one embodiment, the air duct can have a flow cross-section that decreases downstream, at least in sections (e.g., in a section immediately downstream of the air inlet opening), in order to enable and / or support sedimentation and / or precipitation of the particles in the air duct (e.g., in the section) and, for example, to prevent and / or reduce entrainment of particles. Thus, for example,the entry of particles into the air duct via the air inlet opening can be prevented or reduced.

[0027] According to one embodiment, the air duct can have an increasing flow cross-section, at least in sections, to reduce the flow velocity of the air flowing through the air duct. For example, entrainment of particles can be advantageously prevented or reduced.

[0028] According to one embodiment, the air conveying device can be arranged downstream of the air outlet opening.

[0029] Alternatively or additionally, the air conveying device can be designed to convey (e.g. to suck or pump) the air (e.g. by sucking in outside air from an external environment of the system and / or the motor vehicle) via the air inlet opening into the air duct.

[0030] Alternatively or additionally, the air conveying device can be configured to convey (e.g., by suction or pumping) the air (e.g., the air conveyed into the air duct via the air inlet opening) through the air duct to the air outlet opening. Furthermore, it is conceivable that the air conveying device is configured to convey (e.g., by suction or pumping) the air conveyed through the air duct out of the energy storage housing via the air outlet opening.

[0031] According to one embodiment, the air duct can have at least one particle catching device. The at least one particle catching device can be designed to capture the particles separated from the air flowing through the air duct and / or to eject them from the energy storage housing.

[0032] For example, the at least one particle catching device can comprise a dust ejector. Furthermore, the at least one particle catching device can have, for example, an ejection opening through which the particles can be ejected from the energy storage housing. This can prevent and / or reduce contamination of the electrical energy storage device by the particles.

[0033] According to one exemplary embodiment, the at least one particle trapping device (e.g., each) can be assigned to at least one air deflection region of the air duct (e.g., arranged at and / or behind the respective air deflection region). This can be advantageous, for example, because a particularly large number of particles can be separated at the at least one air deflection region, making the at least one air deflection region suitable for positioning the particle trapping device.

[0034] According to one embodiment, the at least one air deflection region can be designed to deflect the air flowing in the air duct from a first direction of movement (e.g. upstream of the at least one air deflection region) into a second direction of movement (e.g. downstream of the at least one air deflection region).

[0035] The at least one particle catching device can be arranged in an imaginary extension of the first direction of movement.

[0036] For example, it is conceivable that the at least one particle catching device is arranged in such a way that it can catch the particles that are separated from the air at the at least one air deflection region by the deflection and that move further along the first direction of movement.

[0037] According to one embodiment, the air inlet opening and the air outlet opening can each be arranged at mutually opposite end regions of the energy storage housing.

[0038] For example, it is conceivable that the air inlet opening is arranged at a first end region of the energy storage housing and the air outlet opening is arranged at a second end region of the energy storage housing, wherein the first end region and the second end region are mutually opposite end regions of the energy storage housing. Thus, for example, the distance traveled by the air in the air duct can be advantageously increased and / or the flow velocity of the air flowing through the air duct can be increased or slowed down as required.

[0039] According to one embodiment, the air guide channel can have a plurality of (e.g., at least two or at least three or at least four or at least five or at least six or at least seven or at least eight or at least nine or at least ten or at least 15 or at least 20) air deflection regions, wherein the plurality of air deflection regions are arranged at a distance from one another within the energy storage housing.

[0040] According to one embodiment, the air conveying device may comprise a compressor (e.g., an air compressor).

[0041] Alternatively or additionally, the battery units may include low-voltage storage units.

[0042] Alternatively or additionally, the energy storage housing can be a battery box.

[0043] According to one embodiment, the system may include at least one compressed air consumer. The at least one compressed air consumer may include a compressed air brake device, an air spring device, and / or a pneumatic actuating device.

[0044] Alternatively or additionally, the system may comprise at least one compressed air storage unit.

[0045] According to a second aspect, a motor vehicle is provided. This is preferably a commercial vehicle and / or a tractor unit. In other words, it can be a motor vehicle whose design and equipment are particularly suitable for transporting people, transporting goods, or towing trailers. For example, the commercial vehicle can be a truck.

[0046] The motor vehicle has a system as disclosed herein.

[0047] According to one exemplary embodiment, the air conveying device and / or the electrical energy storage device and / or the at least one compressed air consumer can be arranged in a rear motor vehicle area (e.g., immediately and / or directly) adjacent to the electrical energy storage device and / or at the rear of the motor vehicle, and / or in a lateral motor vehicle area. However, an arrangement, for example, at the front of a vehicle or in another area of ​​the motor vehicle exposed to comparatively heavy contamination (e.g., unprotected) is also fundamentally possible. Alternatively or additionally, the motor vehicle can be at least partially (e.g., exclusively) electrically (e.g., fully electrically) powered.The technology proposed here is particularly suitable for at least partially, and in particular fully electric, electrically powered motor vehicles, since the air intake for the compressed air can no longer be tapped from the clean air of the combustion engine.

[0048] The previously described embodiments, variants, and features of the invention can be combined with one another as desired. Further details and advantages of the invention are described below with reference to the accompanying drawings. They show:

[0049] Figure 1 is a schematic representation of a system 10 according to an embodiment of the present disclosure (sectional view); and

[0050] Figure 2 is a schematic representation of a motor vehicle 100 according to an embodiment of the present disclosure (side view).

[0051] The embodiments shown in the figures are at least partially identical, so that similar or identical parts are provided with the same reference numerals and for their explanation reference is also made to the description of the other embodiments or figures in order to avoid repetition.

[0052] Figure 1 shows a schematic representation of a system 10 according to an embodiment of the present disclosure in a sectional view.

[0053] The system 10 is designed to provide compressed air for at least one compressed air consumer 102 (e.g., a compressed air brake device and / or an air spring device and / or a pneumatic actuating device, ....) and / or at least one compressed air reservoir (not shown) of a motor vehicle 100 (see, for example, Figure 2).

[0054] The system 10 includes an electrical energy storage device 12 and an air conveying device 22.

[0055] The electrical energy storage device 12 has an energy storage housing 14. The energy storage housing 14 has an air inlet opening 16, an air outlet opening 18, and an air duct 20. Air 11 can flow through the energy storage housing 14 from the air inlet opening 16 through the air duct 20 to the air outlet opening 18 in order to separate particles from the air 11 flowing through the air duct 20.

[0056] For clarity, the air duct 20 or the movement path of the air flowing in the air duct 20 is symbolically illustrated by an arrow line.

[0057] The air conveying device 22 can, for example, be arranged downstream of the air outlet opening 18. However, it is also conceivable for the air conveying device 22 to be arranged upstream of the air inlet opening 16 (not shown here).

[0058] The air conveying device 22 is designed to convey (e.g., to suck or pump) the air 11 out of the energy storage housing 14 via the air outlet opening 18.

[0059] In Figure 1, the air 11 conveyed via the air outlet opening 18 is symbolically illustrated by an arrow symbol.

[0060] The air conveying device 22 is further configured to supply the air 11 conveyed from the energy storage housing 14 via the air outlet opening 18 (e.g., as compressed air partially purified of particles) to the at least one compressed air consumer 102 and / or the at least one compressed air reservoir (not shown). The air conveying device 22 may preferably comprise a compressor (e.g., an air compressor).

[0061] Furthermore, it is conceivable that the air conveying device 22 can be designed to convey (e.g., suck or pump) the air 11 (e.g., by sucking in outside air from an external environment of the system 10 and / or the motor vehicle 100) via the air inlet opening 16 into the air duct 20. Furthermore, the air conveying device 22 can be designed, e.g., to convey (e.g., suck or pump) the air 11 conveyed via the air inlet opening 16 into the air duct 20 through the air duct 20 to the air outlet opening 18 and then, as described above, to convey it out of the energy storage housing 14 via the air outlet opening 18. The air 11 conveyed via the air inlet opening 16 into the air duct 20 is symbolically illustrated in Figure 1 by means of an arrow symbol.

[0062] For example, the air conveying device 22 is fluidically connected to the air outlet opening 18. Furthermore, the electrical energy storage device 12 can optionally have a plurality of battery units 24a-d. The battery units 24a-d preferably comprise a plurality of battery modules. The plurality of battery units 24a-d can be arranged within the energy storage housing 14 (e.g., spaced apart from one another). It is thus conceivable, for example, that the energy storage housing 14 is a battery box that houses the plurality of battery modules.

[0063] The air duct 20 can be defined at least in sections by gaps 25a between the plurality of battery units 24a-d.

[0064] As can be seen in Figure 1, one of the gaps 25b can be formed, for example, by opposing wall sections of the battery units 24a, 24b. Another gap 25a can be formed—only by way of example—by opposing wall sections of the battery units 24b, 24c. Another gap 25a can be formed—only by way of example—by opposing wall sections of the battery units 24c, 24d.

[0065] Furthermore, it is conceivable that the air duct 20 is defined by gaps 25b between the plurality of battery units 24a-d and the energy storage housing 14. Only by way of example, it can be seen in Figure 1 that the battery unit 24a is arranged at a distance from the energy storage housing 14 such that two gaps 25b are formed between the battery unit 24a and the energy storage housing 14.

[0066] The intermediate spaces 25a, 25b can be fluidically connected to one another and form, for example, the air duct 20.

[0067] Furthermore, the air duct 20 can extend within the energy storage housing 14 such that the air 11 flowing through the air duct 20 is deflected (e.g., multiple times) in order to separate the particles (e.g., by means of the cyclone effect and / or by means of centrifugal force separation) from the air 11 flowing through the air duct 20. The air duct 20 can have a plurality of (e.g., at least two, or at least three, or at least four, or at least five, or at least six, or at least seven, or at least eight, or at least nine, or at least ten) air deflection regions 30a-d, wherein the plurality of air deflection regions 30a-d are arranged spaced apart from one another within the energy storage housing 14. In addition, the energy storage housing 14 (e.g., the inner wall structure 26a-g) and / or the plurality of battery units 24a-d (e.g., each) may have edge regions 23a, 23b.The air duct 20 can extend within the energy storage housing 14 such that the air 11 flowing through the air duct 20 flows around the edge regions 23a, 23b at least in sections. The edge regions 23a, 23b can, for example, be formed with an acute angle and / or sharp edges.

[0068] In Figure 1, an edge region 23a of the battery unit 24b and an edge region 23b of the battery unit 24c are provided with reference numerals by way of example.

[0069] Furthermore, the air duct 20 can extend at least partially in a labyrinthine and / or meandering manner within the energy storage housing 14.

[0070] Furthermore, the energy storage housing 14 can have an inner wall structure 26a-g. The inner wall structure 26a-g can be arranged within the energy storage housing 14. The air duct 20 can be defined at least in sections by air passage openings 27a in the inner wall structure 26a-g and / or by air passage openings 27b between the inner wall structure 26a-g and the plurality of battery units 24a-d.

[0071] Figure 1 shows—purely by way of example—an air passage opening 27b arranged between the battery unit 24a and one wall section 26c of the inner wall structure 26a-g. Furthermore, Figure 1 shows—also purely by way of example—an additional air passage opening 27a. In this exemplary example, the air passage opening 27a is formed between two wall sections 26a and 26b of the inner wall structure.

[0072] For example, in order to prevent and / or reduce the entrainment of particles, the air duct 20 may furthermore have, at least in sections, a flow cross-section that decreases downstream.

[0073] In the exemplary embodiment of Figure 1, for example, section 20a (e.g. intake section 20a) is provided. Section 20a can, for example, be positioned immediately downstream of the air inlet opening 16. Section 20a can have a flow cross-section that decreases downstream in order to enable and / or assist sedimentation of the particles in section 20a. In addition, the air duct 20 can have at least one particle catching device 28a-d. The at least one particle catching device 28a-d can be designed to catch particles separated from the air 11 flowing through the air duct 20 and / or to eject them from the energy storage housing 14. It is conceivable that the at least one particle catching device 28a-d comprises a dust ejector. Furthermore, the at least one particle catching device can, for example, B. have an ejection opening through which the particles can be ejected from the energy storage housing.

[0074] Furthermore, the at least one particle trapping device 28a-d (e.g., each) can be assigned to at least one air deflection region 30a-d of the air duct 20. For example, the at least one particle trapping device 28a-d can be arranged on and / or behind the respective air deflection region 30a-d.

[0075] The at least one air deflection region 30a-d can be configured to deflect the air 11 flowing in the air duct 20 from a first direction of movement (e.g., upstream of the at least one air deflection region 30a-d) into a second direction of movement (e.g., downstream of the at least one air deflection region 30a-d). The at least one particle trap 28a-d can, for example, be arranged in an imaginary extension of the first direction of movement.

[0076] Merely by way of example and to clarify the functioning of the embodiment, the flow of the air 11 through the battery housing 14 is described below using the embodiment shown in Figure 1.

[0077] It is conceivable that air 11 (preferably outside air from the external environment of the system 10 and / or the motor vehicle 100) is sucked into the air duct 20 via the air inlet opening 16 by means of the air conveying device 22.

[0078] After entering the energy storage housing 14, the sucked-in air 11 flows into section 20a. Section 20a can, for example, have a flow cross-section that decreases downstream, so that the flow velocity in the region of the air inlet opening 16 is lower than in an area further downstream. This makes it conceivable that particles (e.g., dust, dirt, and / or snow particles) are not sucked in at all, or at least some of the particles settle directly in section 20a. Downstream of section 20a, the air duct 20 can be formed by the air passage opening 27b between the battery unit 24a and the wall section 26c of the inner wall structure 26a-g. Here, the air 11 flowing in the air duct 20 is deflected upwards, as an example in this exemplary embodiment.

[0079] Downstream, the air duct 20 has an air deflection region 30a, where the air 11 flowing in the air duct 20 is deflected, for example (through the air passage opening 27a formed between two wall sections 26a and 26b of the inner wall structure 26a-g), to the left and then downward. As a result, the air 11 flowing in the air duct 20 is deflected from a first direction of movement (here, for example, upward) into a second direction of movement (here, for example, to the left).

[0080] As a result, (further) particles can separate from the air 11 flowing through the air duct 20. It is conceivable that these particles maintain the first direction of movement and are captured by the particle catching device 28a arranged in an imaginary extension of the first direction of movement.

[0081] The particle trap 28a may have an ejection opening through which the captured particles can be ejected from the energy storage housing 14. Downstream of the air deflection region 30a, the air guide channel 20 is formed, for example, by two intermediate spaces 25b.

[0082] The intermediate spaces 25b are formed, for example, by the battery unit 24a and the energy storage housing 14. Further downstream, the air flowing in the air duct 20 is deflected—by way of example only—at the air deflection region 30b into the intermediate region 25a, where further particles are separated and captured by the particle capture device 28b. In this exemplary embodiment, the separation of the particles is assisted by the fact that the battery unit 24b has an acute-angled edge region 23a.

[0083] The intermediate region 25a is formed, merely by way of example, by two opposing wall sections of the adjacent battery units 24a and 24b.

[0084] Subsequently, the air 11 flowing in the air duct 20 can, here as an example, flow through further intermediate regions 25a, 25b, which are arranged in such a way that a meandering and labyrinthine course of the air duct 20 results. Through the multiple deflections, further particles can be separated from the air 11 flowing in the air duct 20.

[0085] Further downstream, the air 11 flowing in the air duct 20 is sucked out of the energy storage housing 14 from the air outlet opening 18 by means of the air conveying device 22.

[0086] It is conceivable, for example, that the air conveying device 22 is designed to compress the air conveyed from the energy storage housing 14 and to provide it as compressed air to a compressed air consumer 102 and / or a compressed air storage device.

[0087] Optionally, the air inlet opening 16 and the air outlet opening 18 can each be arranged at mutually opposite (e.g., opposite along a spatial direction) end regions 14a, 14b of the energy storage housing 14.

[0088] For example, it is conceivable that the air inlet opening 16 is arranged at a first end region 14a of the energy storage housing 14 and the air outlet opening 18 is arranged at a second end region 14b of the energy storage housing 14, wherein the first end region 14a and the second end region 14b are mutually opposite end regions of the energy storage housing 14.

[0089] Furthermore, the battery units 24a-d may comprise low-voltage storage units.

[0090] In addition, the energy storage housing 14 can be a battery box.

[0091] The system 20 can comprise at least one compressed air consumer 102 and / or at least one compressed air reservoir. Preferably, the at least one compressed air consumer 102 can comprise, for example, a compressed air brake device, an air spring device, and / or a pneumatic actuating device.

[0092] Figure 2 shows a schematic side view of a motor vehicle 100 according to an exemplary embodiment of the present disclosure. For example, the motor vehicle 100 can be a commercial vehicle and / or a tractor unit.

[0093] Preferably, the motor vehicle 100 is at least partially, preferably exclusively, electrically powered (and e.g., configured as a BEV). By way of example, the figure shows a motor vehicle longitudinal direction L, a motor vehicle width direction B, and a motor vehicle vertical direction H.

[0094] The motor vehicle 100 includes a system 10 as disclosed herein.

[0095] The air conveying device 22 can be arranged (e.g., viewed in the longitudinal direction L of the motor vehicle) in a rear motor vehicle region 100a (here, by way of example: a rear motor vehicle region 100a of the tractor unit). It is conceivable, for example, that the air conveying device 22 is arranged at the rear of a motor vehicle. In a further embodiment of the invention, not shown here, it is also conceivable, however, that the air conveying device 22 is arranged, for example, in a lateral motor vehicle region (e.g., on a longitudinal outer side of the motor vehicle 100), at a vehicle front, or in any other motor vehicle region exposed to comparatively heavy soiling (e.g., unprotected).

[0096] It is further conceivable that the air conveying device 22 is arranged, for example, immediately and / or directly adjacent to the electrical energy storage device 12 and / or to the at least one compressed air consumer 102 and / or to the at least one compressed air reservoir.

[0097] Although the invention has been described with reference to specific embodiments, it will be apparent to a person skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. Consequently, the invention is not intended to be limited to the disclosed embodiments, but is intended to include all embodiments falling within the scope of the appended claims. In particular, the invention also claims protection for the subject matter and features of the subclaims, independent of the claims referenced. All ranges herein are to be understood as disclosed in such a way that, as it were, all values ​​falling within the respective range are individually disclosed, e.g., also as preferred, narrower outer limits of the respective range. List of Reference Symbols

[0098] 10 systems

[0099] 11 Air

[0100] 12 electrical energy storage device

[0101] 14 energy storage housings

[0102] 14a, 14b End areas of the energy storage housing

[0103] 16 Air inlet opening

[0104] 18 Air outlet opening

[0105] 20 Air duct

[0106] Section 20a

[0107] 22 Air conveyor

[0108] 24a-d battery units

[0109] 25a-b spaces

[0110] 26a-g inner wall structure

[0111] 27a-b Air vents

[0112] 28a-d particle capture devices

[0113] 30a-d Air deflection areas

[0114] 100 motor vehicles

[0115] 100a rear vehicle area

[0116] 102 compressed air consumers

[0117] B Vehicle width direction

[0118] L Vehicle longitudinal direction

[0119] H Motor vehicle vertical direction

Claims

Patent claims 1. System (10) for providing compressed air for at least one compressed air consumer (102) and / or for at least one compressed air reservoir of a motor vehicle (100), preferably a commercial vehicle, comprising: an electrical energy storage device (12) comprising an energy storage housing (14), wherein the energy storage housing (14) has an air inlet opening (16), an air outlet opening (18) and an air duct (20), wherein the energy storage housing (14) can be flowed through with air (11) from the air inlet opening (16) through the air duct (20) to the air outlet opening (18) in order to separate particles from the air (11) flowing through the air duct (20); and an air conveying device (22) which is designed to convey the air (11) via the air outlet opening (18) out of the energy storage housing (14) and to provide it to the at least one compressed air consumer (102) and / or the at least one compressed air reservoir.

2. System (10) according to claim 1, wherein the electrical energy storage device (12) has a plurality of battery units (24a-d), preferably a plurality of battery modules, wherein the plurality of battery units (24a-d) are arranged within the energy storage housing (14) and the air duct (20) is defined at least in sections by intermediate spaces (25a) between the plurality of battery units (24a-d) and / or by intermediate spaces (25b) between the plurality of battery units (24a-d) and the energy storage housing (14).

3. System (10) according to one of the preceding claims, wherein the air guide channel (20) extends within the energy storage housing (14) such that the air (11) flowing through the air guide channel (20) is deflected, preferably several times, in order to separate the particles, preferably by means of the cyclone effect, from the air (11) flowing through the air guide channel (20).

4. System (10) according to one of the preceding claims, wherein the air duct (20) extends at least partially in a labyrinthine and / or meandering manner within the energy storage housing (14).

5. System (10) according to one of the preceding claims, wherein the energy storage housing (14) has an inner wall structure (26a-g), wherein the inner wall structure (26a-g) is arranged within the energy storage housing (14) and the air guide channel (20) is defined at least in sections by air passage openings (27a) in the inner wall structure (26a-g) and / or by air passage openings (27b) between the inner wall structure (26a-g) and the plurality of battery units (24a-d).

6. System (10) according to one of the preceding claims, wherein the energy storage housing (14) and / or the plurality of battery units (24a-d) have edge regions (23a, 23b), wherein the air guide channel (20) extends within the energy storage housing (14) such that the air (11) flowing through the air guide channel (20) flows around the edge regions (23a, 23b) at least in sections.

7. System (10) according to one of the preceding claims, wherein the air guide channel (20) has, at least in sections, preferably in a section (20a) immediately downstream of the air inlet opening (16), a flow cross-section that decreases downstream in order to enable and / or assist sedimentation of the particles in the air guide channel (20), preferably in the section (20a).

8. System (10) according to one of the preceding claims, wherein the air duct (20) has at least in sections an increasing flow cross-section in order to reduce a flow velocity of the air (11) flowing through the air duct (20).

9. System (10) according to one of the preceding claims, wherein the air conveying device (22) is arranged downstream of the air outlet opening (18) and / or is designed to convey, preferably to suck or pump, the air (11), preferably by sucking in outside air from an external environment of the system (10) and / or the motor vehicle (100), via the air inlet opening (16) into the air duct (20), and / or to convey, preferably to suck or pump, the air (11) through the air duct (20) to the air outlet opening (18).

10. System (10) according to one of the preceding claims, wherein the air duct (20) has at least one particle catching device (28a-d) which is designed to catch the particles separated from the air (11) flowing through the air duct (20) and / or to eject them from the energy storage housing (14).

11. System (10) according to claim 10, wherein the at least one particle trapping device (28a-d) is preferably assigned to at least one air deflection region (30a-d) of the air duct (20).

12. System (10) according to claim 11, wherein the at least one air deflection region (30a-d) is designed to deflect the air (11) flowing in the air guide channel (20) from a first direction of movement into a second direction of movement and the at least one particle catching device (28a-d) is arranged in an imaginary extension of the first direction of movement.

13. System (10) according to one of the preceding claims, wherein the air inlet opening (16) and the air outlet opening (18) are each arranged at mutually opposite end regions (14a, 14b) of the energy storage housing (14).

14. System (10) according to one of the preceding claims, wherein the air guide channel (20) has a plurality of, preferably at least two or at least three or at least four or at least five or at least six or at least seven or at least eight or at least nine or at least ten, air deflection regions (30a-d), wherein the plurality of air deflection regions (30a-d) are arranged spaced apart from one another within the energy storage housing (14).

15. System (10) according to one of the preceding claims, wherein: the air conveying device (22) comprises a compressor; and / or the battery units (24a-d) comprise low-voltage storage units; and / or the energy storage housing (14) is a battery box.

16. System (10) according to one of the preceding claims, comprising the at least one compressed air consumer (102), wherein the at least one compressed air consumer (102) comprises a compressed air brake device, an air spring device and / or a pneumatic actuating device; and / or the at least one compressed air reservoir.

17. Motor vehicle (100), preferably a commercial vehicle and / or tractor unit, comprising a system (10) according to one of the preceding claims.

18. Motor vehicle (100) according to claim 17, wherein: the air conveying device (22) is arranged in a rear motor vehicle region (100a), preferably adjacent to the electrical energy storage device (12) and / or at the rear of the motor vehicle, and / or in a lateral motor vehicle region; and / or the motor vehicle (100) is at least partially electrically driven.

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