Ventilation system for a vehicle interior

Abstract

Ventilation system (2) for a vehicle interior (4), comprising • an air duct (3) for guiding air into the vehicle interior (4), • an ionization device (6) for ionizing the air in the air duct (3), • an air outlet (7) for transferring the air from the air duct (3) into the vehicle interior (4), and • a deflection device (8) in the air outlet (7), designed to generate an electric and / or magnetic field for deflecting the ionized air.

Description

[0001] The present invention relates to a ventilation system for a vehicle interior.

[0002] Ventilation systems for vehicle interiors, such as cars, typically have an air outlet through which the air, possibly cooled or heated, flows into the vehicle interior. This air outlet usually features adjustable elements, such as louvers, to direct the airflow in a specific direction.

[0003] Devices for ionizing air are also known from DE 10 2011 119 843 A1, DE 10 2014 102 826 A1, US 4 789 801 A and DE 10 2009 038 298 A1.

[0004] The object of the present invention is to provide a ventilation system for a vehicle interior which enables efficient and pleasant ventilation of the vehicle interior while having an attractive visual appearance.

[0005] The object is achieved by the features of claim 1. The dependent claims relate to preferred embodiments of the invention.

[0006] The problem is thus solved by a ventilation system for a vehicle interior. The ventilation system comprises an air duct designed to guide air into the vehicle interior. In particular, this air duct extends from a fan into the vehicle interior. The air duct can be formed by one or more channels. Furthermore, the ventilation system comprises at least one air outlet. The air outlet is designed to guide the air from the air duct into the vehicle interior. Thus, this air outlet forms, in particular, the end of the air duct on the vehicle interior side.

[0007] Furthermore, the ventilation system comprises at least one ionization device in the air duct. The ionization device is designed to ionize the air. The ionization device is arranged upstream of the air outlet, in particular between the fan and the air outlet. The air duct can also be divided into several air outlets downstream of the ionization device.

[0008] The ventilation system further comprises at least one deflection device in the air outlet. If multiple air outlets are used, a deflection device can be arranged in each air outlet. The deflection device is designed to generate an electric and / or magnetic field to deflect the ionized air. By ionizing the air flowing into the vehicle interior and by the electric and / or magnetic field in the deflection device, the incoming air can be directed in a specific direction, depending on the control of the deflection device. The field attracts or repels the ionized components of the air, thus directing the air flow in the desired direction.

[0009] “Deflection” means, in particular, a change in the direction of air flow from the air outlet into the vehicle interior.

[0010] The deflection device can, in principle, be designed in any way desired to generate an electric and / or magnetic field. In the case of static and low-frequency fields, the electric and magnetic components are generally considered separately. In the case of high-frequency fields, the two components are closely coupled, so that these are referred to as electromagnetic fields. The term "electric and / or magnetic field" for the deflection device therefore describes that the deflection device generates an electric field and / or a magnetic field and / or an electromagnetic field. It is also possible for the deflection device to have two different components for generating two fields, so that, for example, a static electric field and a static magnetic field are generated in the deflection device.

[0011] To generate the field, the deflection device preferably comprises at least one field-generating element. The field-generating element is, for example, an electromagnet, a permanent magnet, or an electrode. Furthermore, two or more field-generating elements can also be used, for example, two opposing capacitor plates. Depending on the current supplied to these field-generating elements (with the exception of the permanent magnet), different fields can be generated. For example, the high-frequency current supplied to a coil generates an electromagnetic field. The static current supplied to the capacitor plates primarily generates a static electric field.

[0012] Preferably, the deflection device is configured to change the field in order to change the deflection of the air. In particular, the deflection device is configured to change a field strength of the field and / or a frequency of the field and / or a wavelength of the field and / or a direction of the field. In particular, the ventilation system comprises a control unit for this purpose, which in turn controls the deflection device or the field-generating element arranged therein.

[0013] The field in the deflection device can preferably be changed in steps or continuously. The control unit to be used is designed accordingly.

[0014] As already mentioned, the deflection device preferably comprises at least one field-generating element. To change the field, a voltage applied to the field-generating element is preferably changed and / or a current supplying the field-generating element is changed. This change in the voltage or current is preferably carried out by means of the aforementioned control unit.

[0015] Furthermore, it is preferably provided that the deflection device comprises at least one actuator in addition to the field-generating element. The field-generating element can be moved by means of the actuator to change the field. For example, the field-generating element is a coil that is moved by the actuator in order to change the orientation and / or strength of the field relative to the ionized air flow. According to another possible example, the field is generated with two opposing capacitor plates. At least one of the capacitor plates can then be moved via the actuator in order to change the orientation and / or strength of the field.

[0016] Furthermore, it is preferably provided that the deflection device comprises at least one actuator in combination with a field resistance element. The field resistance element is designed to at least partially shield the field. For example, the field resistance element is an electrical insulator that is moved in the field by means of the actuator. Depending on the position of the field resistance element in the field, the direction and / or strength of the field is / are changed. This also allows the air flow direction to be varied.

[0017] Furthermore, it is preferably provided that the deflection device generates a field by means of at least two field-generating elements, which generates the deflection by means of an electrical phase shift. The field-generating elements are, in particular, coils, capacitor plates, antennas, or waveguides with radiation. The electrical phase shift preferably arises between standing waves, or a phase shift is used between the field-generating elements.

[0018] The ionization device for ionizing the flowing air preferably comprises at least one of the following elements: a plasma generator, a hot / hot wire, a spark gap generator, a high-energy electromagnetic field, a chemical substance for ionizing the air, and / or a radioactive element, particularly an alpha emitter, for ionizing the air. The use of the radioactive element is listed here only for the sake of completeness. It is generally omitted to avoid corresponding radiation exposure.

[0019] Preferably, the ventilation system comprises a neutralization device arranged downstream of the deflection device. The neutralization device can also be located in the air outlet. The neutralization device is designed to reduce the ionization of the air. In particular, the ionization device comprises a field emitter to reduce the ionization of the air.

[0020] The invention further comprises a vehicle, in particular a road vehicle, comprising the described ventilation system.

[0021] Further details, features, and advantages of the invention will become apparent from the following description and the figures. They show: Fig. 1 a schematic view of a ventilation system according to the invention according to an embodiment in a vehicle, Fig. 2 the ventilation system according to the invention Fig. 1 in detail, Fig. 3 and Fig. 4 two different variants for the design of a deflection device of the ventilation system according to the invention according to the embodiment, Fig. 5 to 10 different variants for the design of the field-generating elements and the corresponding electrical deflection.

[0022] In the following, the Fig. 1 to 4 a ventilation system 2 in a vehicle 1 is described in detail.

[0023] Fig. 1 shows the vehicle 1 with the ventilation system 2 arranged therein. The ventilation system 2 comprises an air duct 3 and a fan 5. The air duct 3 leads from the fan 5 to an air outlet 7 of the ventilation system 2. For the sake of simplicity, only one air outlet 7 is shown here. In fact, the air duct 3 can also be divided into several air outlets 7.

[0024] The air can flow into a vehicle interior 4 via at least one air outlet 7.

[0025] The ventilation system 2 comprises, according to the detailed illustration in Fig. 2 an ionization device 6 in the air duct 3. The ionization device 6 is designed to ionize the air flowing towards the vehicle interior 4.

[0026] Furthermore, Fig. 2, that a deflection device 8 is arranged at the vehicle interior end of the air duct 3. The deflection device 8 is designed to direct the air flow in a specific direction within the vehicle interior 4.

[0027] For this purpose, the deflection device 8 comprises at least one field-generating element 10 for generating an electric and / or magnetic field. In the example shown, these are two opposing capacitor plates between which the air flows and is deflected.

[0028] About the Fig. 1 schematically illustrated control unit 9, the current and / or voltage at the field generating element 10 is changed in order to thus also change the field and consequently the deflection of the air.

[0029] Fig. Figure 3 shows a variant of the deflection device 8 with actuator 12. One of the field-generating elements 10 can be moved via actuator 12. By moving the field-generating element 10, the direction and / or strength of the generated field can be changed. This also changes the direction of the flowing air.

[0030] Fig. Figure 4 shows another variant of the deflection device 8 with actuator 12. In this example, the deflection device 8 includes a field resistance element 11 in the field. The field resistance element 11 is, for example, an electrical insulator. The actuator 12 can be used to move the field resistance element 11 in the field, thereby changing the field and thus also the deflection of the air.

[0031] Furthermore, the figures show the optional use of a neutralization device 13, which makes it possible to reduce the ionization of the air downstream of the deflection device 8.

[0032] Fig. Figure 5 shows a variant of the deflection device 8 with two centrally arranged field-generating elements 10 in the form of semicircular capacitor plates. The two field-generating elements 10 can be supported, for example, on a central part of the housing of the air outlet 7. In this variant, it is particularly provided that the housing of the air outlet 7, particularly on the inside, is metallic. This is achieved, for example, by a metallic coating. The housing of the air outlet 7 is electrically charged via the two field-generating elements 10 in order to achieve the desired deflection of the ionized air.

[0033] Fig. 6 shows a variant of the deflection device 8 with a plurality of field-generating elements 10. In particular, more than two field-generating elements 10 are arranged transversely to the flow direction. Furthermore, more than two field-generating elements 10 are arranged along the flow direction. The field-generating elements 10 can be individually controlled, resulting in multiple paths 15 through which the ionized air can be guided, depending on the control. In the example shown, four field-generating elements 10 are arranged transversely to the flow direction, essentially resulting in three paths 15 for guiding the air, depending on the control.

[0034] Fig. 7 shows a similar variant as Fig. 6. For a simple design, Fig. 7 shows that several of the field-generating elements 10 can be controlled in groups.

[0035] Furthermore, the Fig. 6 and Fig. 7 shows an optional use of a flow straightener 14, exemplary for all variants. The flow straightener 14 distributes the flow at the beginning of the air outlet 7 over the entire diameter, for example through its geometric design with guide elements.

[0036] Fig. Figure 8 shows a variant of the deflection device 8 in which more than two field-generating elements are arranged in the center of the air outlet 7. These multiple field-generating elements 10 together form, in particular, a ring shape or a spherical shape and can be controlled individually or in groups.

[0037] Fig. Figure 9 shows a variant in which the deflection device 8 divides the cross-section of the air outlet 7 into a plurality of individual air channels by means of a honeycomb structure. As can be seen in particular from the detailed illustration in Fig.As shown in Figure 10, several field-generating elements 10 are present in each individual air duct and thus in each individual "honeycomb." This allows a separate field to be generated in each individual air duct and the flow to be deflected in each individual air duct or in each individual honeycomb. List of reference symbols: 1 vehicle 2 Ventilation system 3 Air duct 4 Vehicle interior 5 fans 6 Ionization device 7 Air outlet 8 Deflection device 9 Control unit 10 field-generating elements 11 Field resistance element 12 Actuator 13 Neutralization device 14 flow straighteners 15 paths

Claims

[1] Ventilation system (2) for a vehicle interior (4), comprising • an air duct (3) for guiding air into the vehicle interior (4), • an ionization device (6) for ionizing the air in the air duct (3), • an air outlet (7) for transferring the air from the air duct (3) into the vehicle interior (4), and • a deflection device (8) in the air outlet (7), designed to generate an electric and / or magnetic field for deflecting the ionized air. [2] Ventilation system (2) according to claim 1, wherein, in order to change the deflection of the air, the deflection device (8) is designed to change the field, in particular to change: - a field strength of the field and / or - a frequency of the field and / or - a wavelength of the field and / or - a direction of the field. [3] Ventilation system (2) according to one of claims 1 or 2, wherein the deflection device (8) is designed to change the field in several stages or continuously. [4] Ventilation system (2) according to one of the preceding claims, • wherein the deflection device (8) comprises at least one field-generating element (10), • wherein, in order to change the field, a voltage applied to the field-generating element (10) can be changed and / or • a current supplying the field-generating element (10) is variable. [5] Ventilation system (2) according to one of the preceding claims, wherein the deflection device (8) comprises at least one actuator (12) and at least one field-generating element (10), wherein the field-generating element (10) is movable to change the field. [6] Ventilation system (2) according to one of the preceding claims, wherein the deflection device (8) comprises at least one actuator (12) and at least one field resistance element (11) for at least partially shielding the field, wherein the field resistance element (11) is movable to change the field. [7] Ventilation system (2) according to one of the preceding claims, wherein the ionization device (6) for ionizing the air comprises at least one of the following elements: - Plasma generator and / or - Hot / Glow wire and / or - Spark gap generator and / or - high-energy electric and / or magnetic field and / or - chemical substances and / or - radioactive element. [8] Ventilation system (2) according to one of the preceding claims, characterized by a neutralization device (13) downstream of the deflection device (8), designed to reduce the ionization of the air. [9] Vehicle (1), in particular road vehicle, comprising a ventilation system (2) according to one of the preceding claims.

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