Ventilation panel

Abstract

The invention relates to a ventilation panel (1) for a charging station, in particular an electric vehicle charging station, where the ventilation panel (1) comprises a louver support (50) and a plurality of louver blades (52) supported by the louver support (50), where the louver blades (52) are in a sheet shape having a downstream trailing edge portion (56) and an upstream leading edge portion (54), wherein the louver blades (52) have a bent shape in a cross-sectional side view, and wherein the louver blades (52) are supported such that the louver blades (52) define a louver blade plane (P) and a normal direction (N) orthogonal to the louver blade plane (P), and wherein in a cross-sectional side view, the louver blades (52) have a curved shape. The angle defined by the upstream leading edge portion (54) with respect to the normal direction (N) is smaller than the angle defined by the downstream trailing edge portion (56) with respect to the normal direction (N).

Description

Technical Field

[0001] The present invention relates to a ventilation panel. Background Art

[0002] The continuous increase in power density in electric vehicle (EV) charging stations means that the power losses in the chargers are no longer negligible, and the resulting heat must be dissipated by dedicated cooling systems. Air cooling is the standard solution chosen by various charging station manufacturers, primarily due to its lower cost compared to liquid or two-phase cooling solutions. Unfortunately, this increase in power density requires an increase in air volume flow to maintain the same thermal performance; this means either increasing the number of fans or increasing fan speeds, either of which results in increased noise, which is inconsistent with current market demands for quiet solutions.

[0003] Air cooling solutions require the charger to have at least an inlet for fresh air to enter and an outlet for exhaust air, i.e. a ventilation panel that must meet several requirements, including:

[0004] - Ensure an appropriate IP (Ingress Protection) rating (e.g. IP 54 or IP 55);

[0005] - Ensure an appropriate IK (impact protection) rating (e.g. ensure a mechanical protection level of at least IK8);

[0006] - Allow sufficient air flow for power electronics cooling;

[0007] - ensure adequate EMI shielding (if the category of the power electronic equipment is not sufficient to meet the standards);

[0008] -Resistant to weather and direct exposure to solar radiation;

[0009] - At least the part of the ventilation panel close to the heat source meets the flammability requirements (UL 94);

[0010] -Must be cheap enough to make the solution suitable for the final product.

[0011] There are already solutions for air ventilation panels used in EV chargers. These air ventilation panels consist of steel louvers connected to a filter medium. The louvers provide protection from rain, wind, insects, and a certain degree of electromagnetic interference (EMI) shielding; the filter medium needs to be able to capture dust, and the filter medium must capture water (jets or droplets) that flows through the louvers. The IP rating of the ventilation panel depends on these components and how they are connected. This solution is cheap and suitable when the air flow through the louvers is low, but once the air flow increases, the pressure loss generated will significantly affect the thermal performance of the power electronics (see also Figure 16A ).

[0012] There is a need to provide a ventilation panel with improved performance, such as improved use of filters. Summary of the Invention

[0013] This problem is solved by a ventilation panel and a charging station comprising a ventilation panel according to claim 1. Further embodiments of these aspects of the invention are stated in the respective dependent claims and / or described below.

[0014] A first aspect of the present invention relates to a ventilation panel for a charging station, particularly an electric vehicle charging station. The ventilation panel includes a louver support and a plurality of louver blades supported by the louver support. The louver blades are sheet-like in shape, having a downstream trailing edge portion and an upstream leading edge portion. The louver blades have a curved shape in a cross-sectional side view. The louver blades are supported by the louver support such that the louver blades define a louver plane and a normal direction orthogonal to the louver plane, and in a cross-sectional side view, the angle defined by the upstream leading edge portion relative to the normal direction is smaller than the angle defined by the downstream trailing edge portion relative to the normal direction.

[0015] In one embodiment, the louver blades of the plurality of louver blades are arranged to span a louver plane. In one embodiment, the louver plane is spanned by the longitudinal extension of the louver blades and the distance between the louver blades perpendicular to the longitudinal direction. In one embodiment, the louver plane is spanned by the longitudinal extension of the louver blades and a height direction. The louver blades may be offset from each other in the height direction.

[0016] In one embodiment, all of the plurality of louver blades on the louver support have the same shape. In one embodiment, all of the louver blades on the louver support have the same size. In one embodiment, all of the louver blades on the louver support have the same size and shape.

[0017] The shutter blades may be arranged parallel to each other.In one embodiment, the shutter blades are arranged at the shutter support such that the longitudinal extension directions of the shutter blades extend parallel to each other.

[0018] The leading edge portion may include a leading edge. The trailing edge portion may include a trailing edge. The leading edge may extend along the longitudinal extension of the corresponding louver blade. The trailing edge may extend along the longitudinal extension of the corresponding louver blade. In one embodiment, both the leading edge and the trailing edge may extend along the longitudinal extension of the corresponding louver blade. In one embodiment, the leading edge and the trailing edge may extend in parallel.

[0019] In one embodiment, the louver blade has a bent shape in a cross-sectional side view. In one embodiment, the louver blade has an angled (warped) shape in a cross-sectional side view. In one embodiment, the louver blade includes a first section having a curved shape in a cross-sectional side view and a second section having an angled (warped) shape in a cross-sectional side view.

[0020] In one embodiment, the louver blades may have a partially curved shape in side view. In one embodiment, the louver blades may be C-shaped in side view. In one embodiment, the louver blades may have an arc shape in side view. In one embodiment, the louver blades may have a fin shape in side view. In one embodiment, the louver blades may include a concave curved section.

[0021] In one embodiment, in side view, the leading edge portion is smaller than the trailing edge portion.

[0022] The leading edge portion may enclose an acute angle relative to the normal direction of the shutter plane. The leading edge portion may enclose an angle relative to the normal direction of the shutter plane of between 0° and 75°, in particular between 0° and 60°, in particular between 0° and 45°.

[0023] The trailing edge portion may enclose an acute angle relative to the normal direction of the shutter plane. The trailing edge portion may enclose an angle relative to the normal direction of the shutter plane of between 10° and 90°, in particular between 20° and 85°, in particular between 40° and 80°.

[0024] In one embodiment, the leading edge portion may enclose an angle between 0° and 75° relative to the normal direction of the louver plane, and the trailing edge portion may enclose an angle between 10° and 90° relative to the normal direction of the louver plane. In one embodiment, the leading edge portion may enclose an angle between 0° and 60° relative to the normal direction of the louver plane, and the trailing edge portion may enclose an angle between 20° and 85° relative to the normal direction of the louver plane. In one embodiment, the leading edge portion may enclose an angle between 0° and 45° relative to the normal direction of the louver plane, and the trailing edge portion may enclose an angle between 40° and 80° relative to the normal direction of the louver plane. In one embodiment, the leading edge portion may enclose an angle of 30° relative to the normal direction of the louver plane, and the trailing edge portion may enclose an angle of 73° relative to the normal direction of the louver plane. The difference between the angles defined by the leading edge portion and the trailing edge portion may be 43°. In one embodiment, the leading edge portion and the trailing edge portion enclose an obtuse angle.

[0025] In embodiments where the shutter blades have a curved shape in a cross-sectional side view, respective angles of respective tangent and normal directions with respect to the shutter plane may be taken into account.

[0026] The aerodynamic properties of the louver blades can be advantageously improved. One advantage may be that airflow separation can be reduced. One advantage may be that the airflow can flow more evenly through the louver blades. Advantageously, areas of low airflow velocity can be reduced.

[0027] In one embodiment, the louver blades are arranged along a height direction perpendicular to the normal direction, wherein the first louver blade and the adjacent second louver blade are arranged and configured such that adjacent pairs of louver blades overlap each other in the height direction.

[0028] In one embodiment, with respect to the height direction, the trailing edge of the first louver blade protrudes beyond the leading edge of the second louver blade.

[0029] In one embodiment, the louver blade comprises a first side edge connecting the leading edge and the trailing edge, wherein the louver blade is mounted on the louver support via the first side edge.

[0030] In one embodiment, the louver blade comprises a first side edge and an opposite second side edge, the second side edge connecting the leading edge and the trailing edge, wherein the louver blade is mounted on the louver support via the first side edge and the second side edge.

[0031] In one embodiment, the louver blade comprises a first side edge and an opposite second side edge, the second side edge connecting the leading edge and the trailing edge, wherein the louver blade is mounted on the louver support only by the first side edge and the second side edge.

[0032] In one embodiment, the leading edge is not connected to the shutter support. In one embodiment, the trailing edge is not connected to the shutter support. In one embodiment, the connection between the shutter blade and the shutter support is provided by the first side edge and / or the second side edge, in particular only by the first side edge and / or the second side edge.

[0033] One advantage may be that the aerodynamic properties of the shutter support to which the shutter blades are attached may be advantageously improved. One advantage may be that airflow separation may be reduced. One advantage may be that airflow may flow more evenly over the shutter blades.

[0034] In one embodiment, the louver blades are rotatably mounted on the louver support. In one embodiment, the louver blades are rotatable (articulate, tiltable). In one embodiment, the louver blades are repeatedly and reversibly rotatable between an operating position and a closed position, wherein in the closed position, the angle of the louver blades is set to be steeper than in the operating position. In one embodiment, the louver blades are repeatedly and reversibly rotatable between the operating position and the closed position such that in the closed position, airflow through the louver support is reduced.

[0035] In one embodiment, in the closed position, the trailing edge of the louver blade may contact the leading edge portion of the adjacent louver blade. In one embodiment, in the closed position, the trailing edge of the louver blade may be adjacent to the leading edge portion of the adjacent louver blade. In one embodiment, in the closed position, the trailing edge of the louver blade may be closer to the leading edge portion of the adjacent louver blade than in the operating position.

[0036] In one embodiment, the shutter blades are rotatable about an axis extending parallel to a longitudinal extension of the shutter blades.

[0037] In one embodiment, the working angle of the shutter blades can be adjusted by rotating the shutter blades.

[0038] In one embodiment, when the charging station is not charging, the shutter blades can be rotated to a closed position. One advantage may be reduced dust ingress. Another advantage may be extended filter replacement time. Advantageously, this can maintain a higher charger temperature when ambient temperatures are low. Advantageously, this can improve power module reliability.

[0039] In one embodiment, the ventilation panel includes a rotary actuation system. In one embodiment, the ventilation panel includes a locking mechanism. In one embodiment, the locking mechanism can be configured to lock the louver blades in the working position. In one embodiment, the locking mechanism can be configured to repeatedly and reversibly lock the louver blades in the working position. In one embodiment, the locking mechanism is configured to lock the louver blades in the closed position. In one embodiment, the locking mechanism is configured to repeatedly and reversibly lock the louver blades in the closed position. In one embodiment, the locking mechanism is configured to repeatedly and reversibly lock the louver blades in the closed position and is configured to repeatedly and reversibly lock the louver blades in the working position.

[0040] In one embodiment, the shutter supports include an interlocking structure, wherein the interlocking structure is configured to enable attachment of a plurality of shutter supports to one another to form a one-dimensional or two-dimensional array of interlocking shutter supports.

[0041] In one embodiment, the interlocking structure is arranged and configured so that a first shutter support can be repeatedly and reversibly assembled to another shutter support via the interlocking structure of the shutter support and the corresponding interlocking structure of another shutter support to form an array of shutter supports.

[0042] Each louver support having an interlocking structure may allow multiple louver supports to be attached to each other, thereby forming a one-dimensional or two-dimensional array of interlocking louver supports.

[0043] The interlocking structure of the shutter supports may be configured to provide a horizontal assembly of two shutter supports. The interlocking structure of the shutter supports may be configured to provide a vertical assembly comprising two shutter supports.

[0044] The interlocking structure of the shutter supports may be configured such that the shutter planes of the shutter supports in the array of interlocking shutter supports are arranged in a common shutter plane.

[0045] One advantage may be that arrays of different sizes and / or shapes can be formed from multiple identical blind supports. The blind supports may be modules of a modular system that can be easily adapted (e.g., changed in size). This may advantageously simplify the production process and may advantageously reduce production costs.

[0046] One advantage may be that a single shutter support in an array of shutter supports may be replaced. This may advantageously reduce costs (eg, reduce repair costs). Advantageously, resources may be conserved.

[0047] According to one embodiment, the louver support can be used in an inflow configuration. In one embodiment, the louver support can be used in an outflow configuration. In one embodiment, the louver support is rotated 180° about a vertical axis compared to the inflow configuration.

[0048] Inflow air (inflow airflow) may be air flowing from an external space (e.g., the external environment) into an internal space (e.g., an internal compartment of a charging station), particularly through the ventilation panel. The ventilation panel may be configured and arranged to allow (support) an inflow of inflow air. In particular, the ventilation panel may be configured and arranged to enable air to flow from the external space into the internal space via the ventilation panel.

[0049] Outflow air (outflow airflow) can be air that flows from an interior space (e.g., an interior compartment of a charging station), particularly through a ventilation panel, into an exterior space (e.g., the external environment). The ventilation panel can be configured and arranged to allow (support) outflow of the outflow air. In particular, the ventilation panel can be configured and arranged to enable air to flow from the interior space through the ventilation panel into the exterior space.

[0050] Advantageously, the shutter support can be used in both the inflow configuration and the outflow configuration, which can advantageously simplify the production process and advantageously reduce production costs.

[0051] In one embodiment, the shutter support comprises a plastic material. In one embodiment, the shutter support is constructed of a plastic material. In one embodiment, the shutter blades comprise a plastic material. In one embodiment, the shutter blades comprise a plastic material. In one embodiment, the shutter support and the shutter blades comprise a plastic material. In one embodiment, the shutter support and the shutter blades comprise a plastic material. In one embodiment, the plastic material may be a moldable plastic material. Advantageously, production costs may be reduced. Advantageously, the plastic material may be easily formed into specific sheet-shaped shutter blades.

[0052] In one embodiment, the ventilation panel further comprises a filter arrangement. The filter arrangement may comprise a filter supported by a filter support. The filter may comprise a filter surface. The filter arrangement may be configured such that the filter surface can be arranged substantially parallel to the plane of the blind.

[0053] In one embodiment, the filter device and the louver support are configured and arranged such that in the inflow configuration the trailing edge is closer to the filter, in particular the filter surface, than the leading edge.

[0054] In one embodiment, the filter device and the louver support are configured and arranged such that in the outflow configuration the leading edge is closer to the filter than the trailing edge.

[0055] In one embodiment, the filter arrangement is configured and arranged such that the filter surface can be arranged substantially parallel to the shutter plane, so that in the inflow configuration, air flowing through the shutter support can impact the filter surface.

[0056] In one embodiment, the filter arrangement is configured and arranged such that the filter surface can be arranged substantially parallel to the louver plane, so that in the outflow configuration, air leaving the filter surface can reach the louver support.

[0057] In one embodiment, the louver blades include a surface facing the airflow. In one embodiment, in the inflow configuration, the surface facing the airflow faces away from the filter. In one embodiment, in the outflow configuration, the surface facing the airflow faces the filter. In one embodiment, in the inflow configuration, the louver blades are arranged to bend upward (particularly upward from the leading edge toward the trailing edge). In one embodiment, in the outflow configuration, the louver blades are arranged to bend downward (particularly downward from the leading edge toward the trailing edge).

[0058] In one embodiment, the shutter support can be rotated 180° about the vertical axis of the shutter support in the outflow configuration compared to the inflow configuration.

[0059] In one embodiment, the louver support can be used in both the inflow configuration and the outflow configuration, depending on the orientation. Advantageously, there is no need to install different louver supports for different configurations (inflow / outflow). Advantageously, production can be simplified. Advantageously, maintenance can be simplified.

[0060] In one embodiment, the filter may be a pleated filter.

[0061] In one embodiment, the distance between the shutter blades (in particular the trailing edge) and the filter (or the filtering surface) is between 0 mm and 5 mm, in particular between 0.5 mm and 3 mm. In one embodiment, the distance between the shutter blades and the filter (or the filtering surface) is between 1 mm and 3 mm, in particular 2 mm. In one embodiment, the filter (or the filtering surface) is pushed against the shutter blades.

[0062] In one embodiment, the distance between the louver blades (in particular the trailing edge) and the filter (or the filtering surface) is between 2 cm and 25 cm, in particular between 5 cm and 20 cm. In one embodiment, the distance between the louver blades and the filter (or the filtering surface) is between 7 cm and 15 cm, in particular between 9 cm and 12 cm, in particular 10 cm.

[0063] The filter support may include a filter frame. In one embodiment, the filter frame includes plastic. In one embodiment, the filter frame is composed of plastic. In one embodiment, the filter frame includes metal. In one embodiment, the filter frame is composed of metal.

[0064] In one embodiment, the filter device may include a filter (filter medium) and a frame.

[0065] In one embodiment, in particular with regard to the inflow (of air), the filter surface can be arranged such that the air flowing through the shutter support can impact the filter surface.

[0066] In one embodiment, in particular with regard to the inflow (of air), the filter can be arranged downstream of the shutter blades.

[0067] In one embodiment, in particular for the outflow (of air), the filter surface can be arranged such that the air leaving the filter surface can flow through the shutter support.

[0068] One advantage may be that the aerodynamic properties of the louver blades can be advantageously improved, so that a larger portion of the filter (the filter surface) can be affected by the airflow (particularly the inflow). This can advantageously improve the filtering properties. Advantageously, a larger filter area can be used, which can increase efficiency.

[0069] In one embodiment, the filter device comprises an outer periphery, wherein the outer periphery of the filter device comprises a portion of the filter, wherein the outer periphery of the filter device is configured for sealing.

[0070] In one embodiment, the filter device comprises an outer periphery, wherein the outer periphery of the filter device comprises a portion of the filter support, wherein the outer periphery of the filter device is configured for sealing.

[0071] In one embodiment, the filter device comprises an outer periphery, wherein the outer periphery of the filter device comprises a portion of the filter and a portion of the filter support, wherein the outer periphery of the filter device is configured for sealing.

[0072] In one embodiment, the outer perimeter of the filter device is configured for perimeter sealing.

[0073] In one embodiment, the seal between the filter and the structural frame to which it is mounted is achieved in the outer periphery of the filter frame.

[0074] In one embodiment, the filter comprises a portion configured for sealing (particularly a peripheral seal).In one embodiment, the filter comprises a first portion configured for sealing (the peripheral portion) and a second portion configured for filtering (the central portion).

[0075] In one embodiment, the filter support comprises a portion configured for sealing, in particular a peripheral seal. In one embodiment, the filter support comprises a first portion configured for sealing and a second portion configured for supporting the filter.

[0076] In one embodiment, the filter and / or the filter support must ensure a peripheral seal between the structural frame and the filter itself. In embodiments of filter solutions in which the filter protrudes outwards beyond the filter support, the component that performs the sealing task can be the filter. In embodiments of filters in which the peripheral portion consists of the filter frame, sealing means (e.g., gaskets) must be installed on the periphery to ensure the seal. In one embodiment, the filter frame includes the sealing means.

[0077] In one embodiment, the filter support comprises a first filter frame and a corresponding second filter frame, wherein the first filter frame and the second filter frame are configured such that the first filter frame can be assembled to the second filter frame.

[0078] In one embodiment, the first filter frame and the second filter frame are configured such that when the first filter frame is assembled to the second filter frame, the filter is mechanically locked between the first filter frame and the second filter frame.

[0079] In one embodiment, the first filter frame can be repeatedly and reversibly assembled to the second filter frame.

[0080] In one embodiment, the filter support is configured to be easily disassembled. In one embodiment, the filter frame can be easily disassembled to allow recycling of all its components. One advantage may be that environmental friendliness may be improved.

[0081] In one embodiment, the filter support is openable to allow replacement of only the filter media that can be recycled.

[0082] Advantageously, the filter support, the filter frame and / or components of the filter support (or filter frame) can be reused. Advantageously, resources can be saved. One advantage can be improved environmental friendliness. In one embodiment, the filter can be recycled.

[0083] In one embodiment, the filter frame (particularly a plastic frame) comprises two parts (particularly a first filter frame and a second filter frame), wherein the filter medium is mounted between the two parts. In one embodiment, the two filter frames are compressed together and mechanically locked. In one embodiment, easy disassembly is possible, thereby advantageously enabling easy recycling. In one embodiment, the filter frame is reusable.

[0084] Mechanical assembly of the filter can be achieved in several ways.

[0085] In one embodiment, the first filter frame and / or the second filter frame comprises a handle to facilitate filter removal.

[0086] In one embodiment, the filter support comprises an attachment device, wherein the attachment device is arranged and configured to attach the filter to the filter support, wherein the attachment device is configured for disposable use.

[0087] In one embodiment, the attachment means comprises a fusible staple.

[0088] In one embodiment, the filter support comprises attachment means, wherein the attachment means is arranged and configured to attach the filter to the filter support, wherein the attachment means is configured for repeated, reversible attachment.

[0089] In one embodiment, the attachment means comprises a magnet, in particular a plurality of magnets. The magnets may be arranged and configured such that a magnetic force is able to hold the filter together. In one embodiment, the attachment means comprises a clip, in particular a plurality of clips. In one embodiment, the attachment means comprises a metal clip, in particular a plurality of metal clips. In one embodiment, the attachment means comprises a hinge. In one embodiment, the attachment means comprises a plurality of hinges. In one embodiment, the hinged filter frame may be a permanent filter frame that can be opened and accept filter replacements. Such a filter frame may be reusable. In one embodiment, the attachment means comprises a wire, in particular a plurality of wires. In one embodiment, the attachment means comprises a tongue, in particular a plurality of tongues. In one embodiment, the attachment means comprises a groove, in particular a plurality of grooves. In one embodiment, the attachment means comprises a plug, in particular a plurality of plugs. In one embodiment, the attachment means comprises a socket, in particular a plurality of sockets.

[0090] In one embodiment, the filter device comprises an outer periphery, wherein when the filter is mechanically locked between the first filter frame and the second filter frame, the filter protrudes outwardly beyond the filter support, such that the outer periphery of the filter device comprises the filter protruding outwardly beyond the filter support.

[0091] In one embodiment, when the filter is mechanically locked between the first filter frame and the second filter frame, the filter protrudes radially outward beyond the filter support such that an outer periphery of the filter device includes the filter protruding outward beyond the filter support.

[0092] In one embodiment, the filter support comprises the sealing device, in particular, wherein the sealing device is arranged at an outer periphery of the filter support, so that the outer periphery of the filter device comprises the filter support with the sealing device.

[0093] In one embodiment, the filter device and the shutter support are configured and arranged to reduce dust and / or liquid intrusion. In one embodiment, the filter device and the shutter support are configured and arranged to provide ingress protection. In one embodiment, the filter device and the shutter support are configured and arranged to provide IP protection of IP54. In one embodiment, the filter device and the shutter support are configured and arranged to provide IP protection of IP55.

[0094] In one embodiment, the ventilation panel for the charging station further comprises a structural frame, wherein the structural frame comprises an outer surface and an inner surface, wherein the structural frame and the shutter supports are configured such that the shutter supports can be arranged at the inner surface of the structural frame, in particular such that the shutter plane can be arranged parallel to the inner surface of the structural frame.

[0095] In one embodiment, the structural frame is removably mountable in a vent of the charging station.

[0096] In one embodiment, the shutter supports are repeatedly and reversibly arrangeable at the inner surface of the structural frame.

[0097] In one embodiment, the structural frame may comprise a metal frame.

[0098] In one embodiment, the structural frame includes interlocking structures and the shutter supports include corresponding interlocking structures, wherein the interlocking structures are configured to enable the shutter supports to be repeatedly and reversibly assembled to the structural frame.

[0099] In one embodiment, the structural frame includes interlocking structures and the shutter supports include corresponding interlocking structures, wherein the interlocking structures of the structural frame and the interlocking structures of the shutter supports are configured such that the shutter supports can be repeatedly and reversibly assembled to the structural frame via these interlocking structures.

[0100] In one embodiment, the interlocking structure of the structural frame and the interlocking structure of the shutter supports provide a clamping interlocking system.

[0101] In one embodiment, the shutter supports (particularly plastic shutter supports) can be mounted in a structural frame (particularly a metal structural frame) using a clamping and locking system. Advantageously, this allows for fastener-free installation. In one embodiment, advantageously, no screws are required. One advantage can be that no additional tools are required for installation. This can simplify the installation process. Advantageously, maintenance can be simplified and / or accelerated.

[0102] In one embodiment, the structural frame comprises a metal facade, wherein the metal facade comprises a plurality of through openings.

[0103] In one embodiment, the structural frame comprises a liquid collection container, wherein the liquid collection container is in fluid communication with the outlet.

[0104] In one embodiment, the structural frame is made of metal. In one embodiment, the metal front is perforated to allow air to pass through. The diameter of the perforations may affect the EMI shielding performance of the ventilation panel. In one embodiment, the connection between the structural frame and the plastic louvers is not watertight. In one embodiment, the bottom of the structural frame includes a sump (liquid collection container).

[0105] In one embodiment, the structural frame includes a filter mounting system. In one embodiment, the filter mounting system is configured to receive a filter device, in particular, a filter support member supporting a filter. In one embodiment, the filter mounting system is arranged and configured such that, when the shutter support member is assembled to the structural frame and the filter device is received by the filter mounting system, the outer periphery of the filter device provides a seal, in particular a periphery seal, between the structural frame and the filter. In one embodiment, the filter can fill a gap between the filter frame and the structural frame.

[0106] In one embodiment, the filter mounting system is arranged and configured such that when the shutter support is assembled to the structural frame, the filter presses against the shutter support and / or against the shutter blades when the filter support supporting the filter is received by the filter mounting system.

[0107] In one embodiment, when the filter device is mounted on the structural frame, the filter device can be held in place by a fastening system. In one embodiment, the fastening system can be located on a top area of the ventilation panel. In one embodiment, the fastening system can push the filter against the louver blades.

[0108] In one embodiment, the ventilation panel may include a plurality of aerodynamic louvers, in particular louvers supported by louver supports. In one embodiment, the ventilation panel may include a filter, in particular a filter in a filter device. In one embodiment, the ventilation panel may include a structural frame. The structural frame may be configured to receive the louver supports. The structural frame may be configured to receive the filter device. In one embodiment, the structural frame may be configured to receive the louver supports and the filter device.

[0109] In one embodiment, the shutter blades (aerodynamic shutters) may be configured to reduce (particularly minimize) the pressure loss (pressure drop) caused by the shutters (see, e.g. Figure 17 In one embodiment, the louver blades can be configured to minimize the separation area to allow airflow to use the entire filter media surface (see, e.g., Figure 16B ). The louver blades can be configured to prevent airflow separation and reduce airflow velocity.

[0110] The louver blades can be used in an inflow configuration. The louver blades can be used in an outflow configuration. In one embodiment, the louver blades can reduce pressure loss in an inflow configuration. In one embodiment, the louver blades can reduce pressure loss in an outflow configuration.

[0111] In one embodiment, the ventilation panel may include a louver support and a plurality of louver blades supported by the louver support, wherein the louver blades among the plurality of louver blades (in particular, each louver blade among the plurality of louver blades) are sheet-shaped, wherein the louver blades include a downstream trailing edge portion of the louver blade and an upstream leading edge portion of the louver blade, wherein the louver blades have a bent shape in a cross-sectional side view, wherein the louver blades are configured and arranged and / or capable of being arranged so that the angle of the upstream leading edge portion of the louver blade relative to the normal direction is smaller than the angle of the downstream trailing edge portion relative to the normal direction.

[0112] In one embodiment, the louver support may include a front side of the louver support, wherein the front side of the louver support may define a virtual front plane, wherein the louver blades are configured and arranged and / or can be arranged such that an upstream leading edge portion of the louver blades encloses a greater angle with the virtual front plane than a downstream trailing edge portion of the louver blades encloses with the virtual front plane. In one embodiment, the trailing edge portion may be steeper than the leading edge portion.

[0113] In one embodiment, the structural frame is configured and arranged for impact protection. In one embodiment, the structural frame is configured and arranged to provide protection against external mechanical impacts. In one embodiment, the structural frame is configured and arranged to provide at least IK8 level mechanical protection.

[0114] In one embodiment, the structural frame, the filter device, and the shutter support are configured and arranged to reduce dust and / or liquid intrusion. In one embodiment, the structural frame, the filter device, and the shutter support are configured and arranged to provide ingress protection. In one embodiment, the structural frame, the filter device, and the shutter support are configured and arranged to provide protection to an IP rating of IP54. In one embodiment, the structural frame, the filter device, and the shutter support are configured and arranged to provide protection to an IP rating of IP55.

[0115] In one embodiment, the ventilation panel can be configured and arranged as an inflow configuration for allowing (supporting) inflow of air. In particular, the ventilation panel can be configured and arranged to enable air to flow from the exterior space into the interior space via the metal facade, the shutter supports and the filtering device.

[0116] In one embodiment, the ventilation panel can be configured and arranged as an outflow structure for allowing (supporting) outflow of air. In particular, the ventilation panel can be configured and arranged to enable air to flow from the interior space into the exterior space via the filter device, the shutter support and the metal front.

[0117] Another aspect relates to a charging station comprising a ventilation panel according to the invention. The charging station may be a charging station for electric vehicles.

[0118] In one embodiment, the ventilation panel is removably mountable in the vent of the charging station. In one embodiment, the ventilation panel is repeatedly and reversibly removably mountable in the vent of the charging station.

[0119] In one embodiment, the ventilation panel is arranged in the ventilation opening in the inflow configuration.In the inflow configuration, the filter may be arranged downstream of the shutter support.

[0120] In one embodiment, the ventilation panel can be positioned at the charging station in the outflow configuration. In the outflow configuration, the filter can be positioned upstream of the shutter support. In one embodiment, the charging station includes a plurality of ventilation panels. In one embodiment, the charging station includes a plurality of ventilation panels, wherein a first ventilation panel of the plurality of ventilation panels is in the inflow configuration and a second ventilation panel of the plurality of ventilation panels is in the outflow configuration.

[0121] In one embodiment, in the inflow configuration, the louver blades are located downstream of the metal front of the structural frame, and the filter is located downstream of the louver blades. In one embodiment, in the outflow configuration, the louver blades are located downstream of the filter, and the metal front of the structural frame is located downstream of the louver blades.

[0122] In one embodiment, the shutter support can be rotated 180° about the vertical axis in the outflow configuration compared to the inflow configuration.

[0123] Ventilation panels may be arranged in the side walls of the charging station.

[0124] The ventilation panel, in particular a plurality of ventilation panels, may be arranged to provide air cooling of the charging station.

[0125] One advantage may be that the charging station can be easily maintained. Advantageously, this can save time and / or resources. Furthermore, the filtering characteristics may be advantageously improved. Advantageously, the structural frame, the shutter supports, and the filtering device may provide adequate impact and / or ingress protection. Advantageously, appropriate mechanical impact and / or liquid and / or dust protection may be provided for internal components of the charging station (e.g., electrical or electronic components), while also providing adequate air cooling. Advantageously, the functionality of the charging station may be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0126] Further features and embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0127] Figure 1Ashows a schematic diagram of an embodiment of a ventilation panel in a fully assembled state,

[0128] Figure 1B a schematic diagram showing an embodiment of a ventilation panel in an exploded state,

[0129] Figure 2A a schematic perspective view showing an embodiment of a shutter support supporting shutter blades,

[0130] Figure 2B A schematic diagram showing an embodiment of an array of shutter supports,

[0131] Figure 3A A schematic side view showing an embodiment of a plurality of angled shutter blades,

[0132] Figure 3B shows a schematic side view of an embodiment of an angled shutter blade,

[0133] Figure 4 shows a schematic side view of an embodiment of a curved shutter blade,

[0134] Figure 5A A schematic side view showing an embodiment of a plurality of C-shaped shutter blades,

[0135] Figure 5B shows a schematic side view of an embodiment of a plurality of leaf-shaped shutter blades,

[0136] Figure 6A An embodiment of an interlocking structure is shown,

[0137] Figure 6B An embodiment of an interlocking structure is shown,

[0138] Figure 7A a schematic side view showing an embodiment of a structural frame and an embodiment of an associated shutter support,

[0139] Figure 7B Shown Figure 7A Details (upper part),

[0140] Figure 7C Shown Figure 7A Details (lower part),

[0141] Figure 8A A schematic side view showing the arrangement of the filter device at the structural frame is shown,

[0142] Figure 8B A schematic side view showing the arrangement of the filter device at the structural frame is shown,

[0143] Figure 8CA schematic side view showing the arrangement of the filter device at the structural frame is shown,

[0144] Figure 8D shows a schematic diagram of an embodiment of a filtering device,

[0145] Figure 9A 、 Figure 9B shows the filter device in a disassembled state,

[0146] Figure 10 A filter device with a clamp mechanism is shown,

[0147] Figure 11A 、 Figure 11B A filter device with a nail hole mechanism is shown,

[0148] Figure 12A 、 Figure 12B A filter device with a wire mechanism is shown,

[0149] Figure 13A 、 Figure 13B A filtering device with a magnet mechanism is shown,

[0150] 14A to 14C shows a filter device with an articulated filter frame,

[0151] Figure 15A 、 Figure 15B shows a filter device with a seal at the filter support,

[0152] Figure 16A shows the contour map of air velocity through a standard louver calculated by CFD simulation,

[0153] Figure 16B shows a contour map of the air velocity through the shutter support according to the present invention calculated by CFD simulation,

[0154] Figure 17 shows the normalized pressure drop as a function of airflow velocity,

[0155] Figure 18 A scheme of an embodiment of a charging station is shown. DETAILED DESCRIPTION

[0156] exist Figure 1A An embodiment of a ventilation panel 1 for a charging station 3 is shown in FIG. 1 in a fully assembled state. The ventilation panel 1 can be arranged in the ventilation opening 5 of the charging station 3 (see FIG. Figure 18 ).exist Figure 1B The decomposed state is shown in Figure 1Aembodiment. The ventilation panel 1 shown in the figure includes a structural frame 10. The ventilation panel 1 shown in the figure includes a louver support 50 (in particular, a plurality of louver supports 50), and a plurality of louver blades 52. The louver blades 52 of the plurality of louver blades can be supported by the louver support 50. In the example shown, an array 70 of 8 louver supports 50 is shown (including four rows and two columns of louver supports 50). The ventilation panel 1 shown in the figure includes a filtering device 100. The filtering device 100 shown in the figure includes a filter 102 and a filter support 104. The filter support 104 can support the filter 102. The filter 102 can extend in the filter extension plane. In the fully assembled state ( Figure 1A ), the shutter support 50 and the filtering device 100 are attached to the structural frame 10.

[0157] exist Figure 2A , a shutter support 50 is shown. The shutter support 50 may include a shutter support frame 80. The shutter support 50 may include a plurality of shutter blades 52. The plurality of shutter blades 52 may be arranged in a shutter blade area 53. The shutter blade area 53 may be surrounded by the shutter support frame 80.

[0158] The shutter support 50 can support a plurality of shutter blades 52 , in particular a plurality of shutter blades 52 of the same shape and / or the same size. In one embodiment, the shutter support 50 can support a plurality of identical shutter blades 52 .

[0159] The shutter support 50 may include an outer shutter support frame 80. The shutter support 50 may include a central shutter support post 82. The central shutter support post 82 may extend in the height direction H of the shutter support 50. The shutter support frame 80 of the shutter support 50 may form an outer periphery 90 (outer boundary) of the shutter support 50. The shutter support frame 80 of the shutter support 50 may extend along the circumferential direction of the shutter support 50.

[0160] The louver blades 52 of the plurality of louver blades 52 can be arranged between the central louver blade support pillar 82 and the outer louver support frame 80. In the illustrated embodiment, each louver blade 52 of the plurality of louver blades 52 can be arranged between the central louver blade support pillar 82 and the outer louver support frame 80. The louver blades can include a first side 88. The louver blades 52 can be attached to the louver support 50 via the first side 88. The louver blades 52 can be arranged perpendicular to the height direction H. In the illustrated embodiment, the plurality of louver blades 52 are stacked a distance apart from each other along the height direction H. The louver blades 52 can span the louver plane P (see also FIG. Figure 3A 、 Figure 3B 、 Figure 4 ).

[0161] The louver blades 52 of the plurality of louver blades 52 may extend along a longitudinal extension direction L of the louver blades 52. The louver blades 52 on the louver support 50 may be arranged in alignment with each other (see also Figure 3A 、 Figure 5A 、 Figure 5B The louver blades 52 on the louver support 50 may be arranged parallel to each other (see also Figure 3A 、 Figure 5A 、 Figure 5B The louver blades 52 may be arranged such that the longitudinal extension direction L of the louver blades 52 extends perpendicularly to the height direction H. The louver blades 52 may be arranged such that the longitudinal extension direction L of the louver blades 52 extends horizontally. In the embodiment shown, the louver blades 52 are evenly distributed along the height direction H (equally spaced along the height direction H) (see also Figure 3A 、 Figure 5A 、 Figure 5B ).

[0162] The louver blades 52 may include a leading edge 84 (foot edge 84). The leading edge 84 of the louver blade 52 may extend along the longitudinal extension direction L of the corresponding louver blade 52. The leading edges 84 of the louver blades 52 may be aligned. In one embodiment, the leading edges 84 of the louver blades 52 are arranged in a louver blade plane P. The leading edges 84 of the louver blades 52 may span the louver plane P (see also FIG. Figure 3A 、 Figure 3B 、 Figure 4 ).

[0163] One louver blade 52 (in particular each louver blade 52) may include an airflow-facing surface 58. The louver blade 52 may be arranged or capable of being arranged such that the airflow-facing surface 58 faces the airflow when the panel 1 is used as intended. The airflow-facing surface 58 may be concavely curved (in particular curved from the leading edge to the trailing edge).

[0164] The shutter support 50 may include interlocking structures 60, 62 (see also Figure 6A 、 Figure 6B In one embodiment, the shutter supports 50 include a plurality of interlocking structures 60, 62. The interlocking structures 60, 62 can be arranged and configured to attach adjacent shutter supports 50. The interlocking structures 60 can be arranged and configured to attach horizontally so that the attached shutter supports 50 are arranged side by side (a row of an array 70 of shutter supports 50) (see also Figure 6A). The interlocking structures 62 can be arranged and configured for vertical attachment so that the attached shutter supports 50 are arranged one above the other (columns of the array 70 of shutter supports 50) (see also Figure 6B In one embodiment, the interlocking structures 60, 62 may include a detent mechanism. In one embodiment, the interlocking structures 60, 62 may include a slide-in mechanism. In one embodiment, the interlocking structures 60, 62 may be configured for repeated, reversible assembly. In one embodiment, the interlocking structures 60, 62 may be configured for repeated, reversible disassembly.

[0165] In one embodiment, the shutter support 50 includes another interlocking structure 64. The other interlocking structure can be configured to attach the shutter support 50 to the structural frame 20. In one embodiment, the interlocking structures 60, 62 can be configured to attach the shutter support 50 to the structural frame 20.

[0166] The attached (interconnected) louver supports 50 can form an array 70 of louver supports 50, and in particular, an array 70 of louver supports 50 that each support a plurality of louver blades 52. In one embodiment, the outer portions (in particular, the non-interconnected portions) of the attached louver supports 70 can form an outer perimeter 90 of the array 70.

[0167] The array 70 of shutter supports 50 may include a plurality of identical shutter supports 50. In the array 70 of shutter supports 52, the shutter blades 52 on all shutter supports 50 in the array 70 may be arranged parallel to each other (see in particular Figure 1B 、 Figure 2B In the array 70 of louver supports 52, each louver blade 52 can be aligned equally. In one embodiment, the louver blades 52 in the array 70 of louver supports 52 can be the same size. In one embodiment, the louver blades 52 in the array 70 of louver supports 52 can be the same shape. In one embodiment, the louver blades 52 in the array 70 of louver supports 52 can face the same direction.

[0168] The louver blades 52 may include a section having a curved shape in a cross-sectional side view. The louver blades 52 may include multiple sections having a curved shape in a cross-sectional side view. The louver blades 52 may include a section having a straight shape in a cross-sectional side view. The louver blades 52 may include multiple sections having a straight shape in a cross-sectional side view. The louver blades 52 may include a section having a curved shape in a cross-sectional side view, and a section having a straight shape in a cross-sectional side view.

[0169] The louver blades 52 may have a curved shape in a cross-sectional side view (see, e.g., Figure 2A 、 Figure 4 、 Figure 5A ). The louver blades 52 may have a C-shape in a cross-sectional side view (see, e.g. Figure 2A 、 Figure 5A ). The louver blades 52 may have a warped (angled) shape in a cross-sectional side view (see, e.g. Figure 3A 、 Figure 3B ). The louver blades 52 may have a blade shape in a cross-sectional side view (see, e.g. Figure 5B ).

[0170] The louver blades 52 may include a leading edge portion 54. The louver blades 52 may include a trailing edge portion 56 (see Figure 3A 、 Figure 3B 、 Figure 4 、 Figure 5A 、 Figure 5B The leading edge portion 54 may be adjacent to the trailing edge portion 56. The leading edge portion 54 may extend from the leading edge 84 of the corresponding louver blade 52.

[0171] In one embodiment, for example, Figure 3B As shown, in a cross-sectional side view, the leading edge portion 54 is shorter than the trailing edge portion 56. The length of the leading edge portion 54 in its widthwise extension direction W1 may be shorter than the length of the trailing edge portion 56 in its widthwise extension direction W2.

[0172] The leading edge portion 54 may enclose a first angle A1 relative to the normal direction of the louver plane P. The trailing edge portion 56 may enclose a second angle A2 relative to the normal direction N of the louver plane P. The first angle A1 may be smaller than the second angle A2. The difference between the second angle A2 and the first angle A1 may be a difference angle A3.

[0173] In the case where the louver blades 52 have a curved shape in a cross-sectional side view, angles (e.g., angles A1, A2) may be considered relative to respective tangents (e.g., tangents T1, T2) and the normal direction N to the louver plane P. In one embodiment, a first angle A1 may be considered relative to the tangent T1 at the leading edge 84 (and the normal direction N to the louver plane P). In one embodiment, a second angle A2 may be considered relative to the tangent T2 at the trailing edge (head edge) 86 (and the normal direction N to the louver plane P). The trailing edge 86 may be arranged opposite the leading edge 84 of the louver blade 52 (see in particular FIG. Figure 4 ). The trailing edge portion 56 may include a trailing edge 86.

[0174] The curvature of the louver blades 52 may vary as they extend from the leading edge 84 to the trailing edge 86 .

[0175] The louver blades 52 may be arranged and configured such that, in a side view, the trailing edge portions 56, 56a of the first louver blades 52, 52a extend beyond the leading edges 84b of the second louver blades 52, 52b relative to a direction perpendicular to the normal direction N. In the height direction H, the first louver blades 52, 52a and the second louver blades 52, 52b may overlap (see, for example, FIG. Figure 3A ).

[0176] exist Figure 3B An embodiment with an angled cross-sectional side view is shown in FIG. The leading edge portion 54 and the trailing edge portion 56 may enclose an obtuse angle A4. In particular, the airflow-facing surface of the leading edge portion 54 and the airflow-facing surface of the trailing edge portion 56 may enclose an obtuse angle A4.

[0177] The louver blades 52 may be arranged and configured such that the leading edge portions 54 of the plurality of louver blades 52 are arranged in parallel. The louver blades 52 may be arranged and configured such that the trailing edge portions 56 of the plurality of louver blades 52 are arranged in parallel (see Figure 3A , see also Figure 5A 、 Figure 5B ).

[0178] exist Figure 5A and Figure 5B An embodiment of a shutter blade 52 is shown in FIG. Figure 5A A plurality of C-shaped shutter blades 52 are shown in FIG. Figure 5B A plurality of leaf-like shutter blades 52 are shown in FIG. Figure 5A and 5B An exemplary orientation of the louver blades 52 for air flowing in along the airflow direction F is shown on the left side of FIG. Figure 5A and 5B The right side of FIG. 5 shows an exemplary orientation of the louver blades 52 for air outflow in the airflow direction F. In the inflow configuration (left) and the outflow configuration (right), the airflow (in the airflow direction F) first reaches the leading edge portion 54 .

[0179] In the outflow configuration (orientation), the louver blades 52 rotate, as opposed to the inflow configuration. This can be easily achieved by rotating the entire louver support 50. Thus, the louver support can be used in both the inflow configuration and the outflow configuration. This can simplify the production of the louver support 50.

[0180] exist 7A to 7C An embodiment of a structural frame 10 with attached shutter supports 50 supporting shutter blades 52 is shown in FIG. Figure 7A A schematic overview of an embodiment is given in . Figure 7B Given Figure 7A A more detailed view of the upper part of the . Figure 7BGiven Figure 7A A more detailed view of the lower part of the .

[0181] The structural frame 10 may include a metal front face 22. The metal front face 22 includes an inner surface 12 and an outer surface 14. In one embodiment, a through opening 24 (particularly a plurality of through openings 24) may span the metal front face 22, particularly from the inner surface 12 to the outer surface 14. In one embodiment, the metal front face 22 may be perforated (perforated). The metal front face 22 may extend in a plane.

[0182] In the illustrated embodiment, the structural frame 10 includes an interlocking structure 20 ( Figure 7C In this embodiment, the interlocking structure 20 of the structural frame 10 is configured for attaching a shutter support 50 , in particular via the interlocking structure of the shutter support 50 .

[0183] In one embodiment, the interlocking structures 20 of the structural frame 10 are arranged to correspond with the outer perimeter 90 of the shutter supports 50. In one embodiment, the interlocking structures 20 of the structural frame 10 are arranged to correspond with the outer perimeter 90 of the array 70 of shutter supports 50.

[0184] The louver support 50 can be arranged on the structural frame 10 so that the louver plane P extends parallel to the metal front face (the extension plane of the metal front face). In the illustrated embodiment, the louver support 50 can be arranged on the structural frame 10 so that the leading edge portion 54 is arranged adjacent to the metal front face 22. In the illustrated embodiment, the louver support 50 can be arranged on the structural frame 10 so that the trailing edge portion 56 is arranged away from the metal front face 22.

[0185] In the illustrated embodiment, the shutter support 50 is arranged at the structural frame 10 such that a gap 40 exists between the shutter support 50 and the structural frame 10. In particular, the gap 40 may exist between the shutter support frame 80 and the structural frame 10. The gap 40 may exist between the outer periphery 90 of the shutter support 50 and the structural frame 10 (see FIG. Figure 7B ).

[0186] The exemplary structural frame 10 shown in the figures may include a liquid collection container 26. The liquid collection container 26 may be in fluid communication with an outlet 28. In one embodiment, liquid collected in the liquid collection container 26 may be directed away from the ventilation panel 1 via the outlet 28.

[0187] The structural frame 10 may include a filter mounting system 30. The filter mounting system 30 may be configured to receive a filter device 100 (see also Figure 8A 、 Figure 8B 、 Figure 8C ).

[0188] The filter device 100 and the filter mounting system 30 can be configured such that the filter device 100 can be inserted into the filter mounting system 30. The filter device 100 and the filter mounting system 30 can be configured such that when the filter device 100 is received in the filter mounting system 30, the filter 102 of the filter device 100 is disposed downstream of the louver support 50. The filter device 100 and the filter mounting system 30 can be configured such that when the filter device 100 is received in the filter mounting system 30, the filter 102 of the filter device 100 is disposed downstream of the louver support 50 and the metal front face 22 of the structural frame 10. In one embodiment, when the filter device 100 is received in the filter mounting system 30, the louver support 50 is disposed between the metal front face 22 of the structural frame 10 and the filter device 100 (particularly, the filter 102 of the filter device 100).

[0189] In one embodiment, the filter device 100 can be inserted into the filter mounting system 30 ( Figure 8A ), and then pushed toward the shutter support 50 ( Figure 8B ). The filter device 100 can be fixed to the structural frame 10 ( Figure 8C ).

[0190] In one embodiment, in the fully assembled state (the shutter support 50 and the filter device 100 are attached to the structural frame), the shutter plane P, the filter extension plane, and the metal front extension plane extend in parallel. In one embodiment, in the fully assembled state, the filter extension plane and the metal front extension plane extend perpendicular to the normal direction of the shutter plane P.

[0191] In one embodiment, the filter 102 can be configured such that, in a fully assembled state, the filter 102 is aligned with the louver blade area 53. In one embodiment, the filter 102 can be configured such that, in a fully assembled state, the filter 102 is disposed downstream of the plurality of louver blades 52. In one embodiment, the filter support 104 can be configured such that, in a fully assembled state, the filter support 104 is disposed in alignment with the louver support frame 80.

[0192] In one embodiment, the filter device 100 may be secured to the structural frame 10 and / or the shutter support 50 by fastening devices 32 .

[0193] The filter device 100 may include an outer periphery 110 (see also Figure 8D). The filter device 100, the shutter support 50, and the structural frame 10 can be configured such that, in a fully assembled state, the outer periphery 110 of the filter device 100 extends outward beyond the outer periphery 90 of the shutter support 50. In one embodiment, in a fully assembled state, the outer periphery 110 of the filter device 100 can extend toward the structural frame 10. In one embodiment, the outer periphery 110 of the filter device 100 can cover the gap 40.

[0194] In one embodiment, the filter 102 may extend outwardly beyond the filter support 104 (see Figure 8A 、 Figure 8B 、 Figure 8C 、 Figure 8D 、 Figure 10 Figure 11 Figure 12B 、 Figure 13B In one embodiment, the filter 102 can protrude outward from the filter support 104. In one embodiment, the filter 102 can extend radially outward beyond the filter support 104. In one embodiment, the filter 102 can extend radially outward beyond the first filter frame 120 and / or the second filter frame 122.

[0195] The filter can include a central portion 106 and a peripheral portion 108. In one embodiment, the peripheral portion 108 can extend outwardly beyond the filter support 104. In one embodiment, the central portion 106 can extend inwardly beyond the filter support 104. In one embodiment, the outer periphery 110 of the filter device 100 can include a peripheral portion of the filter 102. In one embodiment, the outer periphery 110 of the filter device 100 is comprised of the peripheral portion of the filter 102. In one embodiment, the peripheral portion 108 and the central portion 106 extend in a common plane.

[0196] In one embodiment, the filter 102 may terminate within or at the filter support 104. In one embodiment, the outer periphery 110 of the filter device 100 may include a portion of the filter support 104 (see FIG. Figure 14C 、 Figure 15A 、 Figure 15B In one embodiment, the outer periphery 110 of the filter device 100 may include a portion of the filter support 104. In one embodiment, the sealing device 112 may be arranged at the filter support 104 such that the outer periphery 110 of the filter device 100 includes the sealing device 112. The sealing device 112 may be a gasket. The sealing device 112 may be a sealing tape ( Figure 15A The sealing device 112 may be a sealing foam arranged at the filter support 104 ( Figure 15B ).

[0197] In one embodiment, the filter support 104 includes a first filter frame 120 and a second filter frame 122 (see FIG9 to FIG14 ). When the first filter frame 120 is assembled to the second filter frame 122 , the filter 102 may be fixed between the first filter frame 120 and the second filter frame 122 .

[0198] In one embodiment, the first filter frame 120 and the second filter frame 120 can be connected by a nail hole mechanism ( Figure 9A 、 Figure 9B 、 Figure 11A 、 Figure 11B ) are assembled together (particularly with the middle filter 102). The first filter frame 120 may include a spike 130 protruding from the first filter frame 120. The second filter frame 122 may include a corresponding hole 132, particularly a through hole. The spike 130 and the hole 132 may be arranged so that when the first filter frame 120 and the second filter frame 122 are aligned, the spike 130 and the hole 132 are also aligned with each other. The spike 130 may pierce (penetrate) the filter 102. The spike 130 may extend through the hole 132 ( Figure 11A In one embodiment, the nail 130 may be melted for fixation, in particular so that the nail 130 is fastened in the hole 132 ( Figure 11B In one embodiment, the first filter frame 120 may include a plurality of pegs 130 , and the second filter frame 122 may include a corresponding plurality of corresponding holes 132 .

[0199] In one embodiment, the first filter frame 120 and the second filter frame 122 can be connected by a wire mechanism ( Figure 12A 、 Figure 12B ) are assembled together (particularly with the middle filter 102). The first filter frame 120 can include a pair of holes 134. The second filter frame 122 can include another pair of holes 136. When the first filter frame 120 and the second filter frame 122 are aligned, the pair of holes 134 can be aligned with the other pair of holes 136. A wire 138 can pass through the pair of holes 134. The wire 138 can be folded at the first filter frame 120 and / or the second filter frame 122. In one embodiment, the first filter frame 120 can include multiple pairs of holes 134, and the second filter frame 122 can include multiple pairs of other corresponding holes 136.

[0200] In one embodiment, the first filter frame 120 and the second filter frame 122 can be connected by a magnet mechanism ( Figure 13A 、 Figure 13B) are assembled together (particularly with the middle filter 102). The first filter frame 120 may include a magnet 140, particularly an overmolded magnet. The second filter frame 122 may include another magnet 142, particularly an overmolded magnet. When the first filter frame 120 and the second filter frame 122 are aligned, the magnet 140 may be aligned with the other magnet 142. In one embodiment, the first filter frame 120 may include a plurality of magnets 140, and the second filter frame 122 may include a corresponding plurality of other corresponding magnets 142.

[0201] In one embodiment, the first filter frame 120 and the second filter frame 122 can be connected by a clamp mechanism ( Figure 10 ) are assembled together (particularly with the middle filter 102). The first filter frame 120 may include a clip 144, particularly a metal clip. The clip 144 is arranged and configured to hold the first filter frame 120 and the second filter frame 122 (particularly the middle filter 102) together. The first filter frame 120 may include a plurality of clips 144.

[0202] In one embodiment, the first filter frame 120 and the second filter frame 122 form a hinged filter frame 146 ( Figure 14A 、 Figure 14B 、 Figure 14C ).

[0203] Figure 16A The contour plots shown relate to standard shutter supports. Figure 16B The contour plot shown relates to a louver support 50 according to an embodiment of the present invention. For the illustrated inflow conditions, the plot shows airflow separation. There is a low-velocity region 160, a high-velocity region 162, and a moderate-velocity region 164. The low velocity downstream of the louver blades significantly reduces air flow and, in turn, accelerates the airflow.

[0204] When the filter is attached to a standard louver, the airflow uses only some areas of the filter, namely those aligned with the high-speed areas 162 (high-speed trajectory) from the louver. Therefore, the airflow uses only some areas of the filter to exit. Therefore, using standard louvers is not an effective solution because it accelerates the airflow and results in limited use of the filter surface.

[0205] By means of the louver blades 52 according to an embodiment of the present invention, a significant aerodynamic improvement can be achieved (see Figure 16B The lower blades 52 (aerodynamic fins) prevent air flow separation and reduce air flow speed.

[0206] exist Figure 17In Figure 1, the normalized pressure drop across a standard Venetian blind according to an embodiment of the present invention is shown as a function of airflow velocity. The pressure loss of the Venetian blind blades according to the present invention (compared to standard Venetian blind blades) can be reduced. In particular, the pressure drop at high airflow velocities can be reduced.

Claims

1. A ventilation panel (1) for an electric vehicle charging station (3), wherein: The ventilation panel (1) comprises a shutter support (50), and a plurality of louver blades (52) supported by the louver support member (50), The shutter blade (52) is in a sheet-like shape having a downstream trailing edge portion (56) and an upstream leading edge portion (54), wherein the shutter blades (52) have a bent shape in a cross-sectional side view, The louver blades (52) are supported by the louver support member (50) so that the louver blades (52) define a louver plane (P) and a normal direction (N) orthogonal to the louver plane (P), and in the cross-sectional side view, the angle (A1) defined by the upstream leading edge portion (54) relative to the normal direction (N) is smaller than the angle defined by the downstream trailing edge portion (56) relative to the normal direction (N).

2. The ventilation panel for a charging station according to claim 1, wherein: The louver blades (52) have a curved shape in a cross-sectional side view, and / or wherein the louver blades (52) have an angled shape in a cross-sectional side view.

3. The ventilation panel for a charging station according to claim 1, wherein: The louver blades (52) are arranged along a height direction (H) perpendicular to the normal direction (N), wherein a first louver blade (52, 52a) and an adjacent second louver blade (52, 52b) are arranged and configured so that adjacent pairs of louver blades overlap each other in the height direction (H).

4. The ventilation panel for a charging station according to claim 1, wherein: The louver blade (52) includes a first side edge (88) connecting the leading edge (84) and the trailing edge (86), wherein the louver blade (52) is mounted on the louver support (50) via the first side edge (88), wherein the louver blade (52) includes the first side edge (88) and an opposite second side edge, the second side edge connecting the leading edge (84) and the trailing edge (86), wherein the louver blade (52) is mounted on the louver support (50) via the first side edge (88) and the second side edge, and / or The shutter blades (52) are rotatably mounted on the shutter support (50).

5. The ventilation panel for a charging station according to claim 1, wherein: The shutter supports (50) include interlocking structures (60, 62), wherein the interlocking structures (60, 62) are configured to enable a plurality of shutter supports (50) to be attached to each other, thereby forming a one-dimensional or two-dimensional array (70) of interlocking shutter supports (50).

6. The ventilation panel for a charging station according to claim 1, wherein: The ventilation panel (1) further comprises a filter arrangement (100), the filter arrangement comprising a filter (102) supported by a filter support (104), wherein the filter (102) comprises a filter surface, and wherein the filter arrangement (100) is configured such that the filter surface can be arranged substantially parallel to the shutter plane (P).

7. The ventilation panel for a charging station according to claim 6, wherein: The filter device (100) comprises an outer periphery (110), wherein the outer periphery (110) of the filter device (100) comprises a portion of the filter (102) and / or a portion of the filter support (104), wherein the outer periphery (110) of the filter device (100) is configured for sealing.

8. The ventilation panel for a charging station according to claim 6, wherein: The filter support (104) comprises a first filter frame (120) and a corresponding second filter frame (122), wherein the first filter frame (120) and the second filter frame (122) are configured such that the first filter frame (120) can be assembled to the second filter frame (122), The first filter frame (120) and the second filter frame (122) are configured such that when the first filter frame (120) is assembled to the second filter frame (122), the filter (102) is mechanically locked between the first filter frame (120) and the second filter frame (122).

9. The ventilation panel for a charging station according to claim 6, wherein: The filter support (104) comprises an attachment device, wherein the attachment device is arranged and configured to attach the filter (102) to the filter support (104), wherein the attachment device is configured for single use, or Wherein the attachment means is configured for repeated, reversible attachment, wherein the attachment means comprises a magnet, a clip, a hinge, a wire, a tongue, a groove, a plug and / or a socket.

10. The ventilation panel for a charging station according to claim 7, wherein: When the filter (102) is mechanically locked between the first filter frame (120) and the second filter frame (122), the filter (102) protrudes outwardly beyond the filter support (104), such that the outer periphery (110) of the filter device (100) includes the filter (102) protruding outwardly beyond the filter support (104), and / or The filter support (104) comprises a sealing device (112), wherein the sealing device (112) is arranged at the outer periphery of the filter support, so that the outer periphery (110) of the filter device (100) comprises the filter support (104) having the sealing device (112).

11. The ventilation panel for a charging station according to claim 1, wherein: The ventilation panel (1) for a charging station further comprises a structural frame (10), wherein the structural frame (10) comprises an outer surface (14) and an inner surface (12), wherein the structural frame (10) and the shutter support (50) are configured such that the shutter support (50) can be arranged at the inner surface (12) of the structural frame (10) such that the shutter plane (P) can be arranged parallel to the inner surface (12) of the structural frame (10).

12. The ventilation panel for a charging station according to claim 11, wherein: The structural frame (10) includes an interlocking structure (20), and wherein the shutter support (50) includes a corresponding interlocking structure, wherein the interlocking structure is configured to enable the shutter support (50) to be repeatedly and reversibly assembled to the structural frame (10), wherein the interlocking structure (20) of the structural frame (10) and the interlocking structure of the shutter support (50) provide a clamping interlocking system.

13. The ventilation panel for a charging station according to claim 11, wherein: The structural frame (10) comprises a metal front face (22), wherein the metal front face (22) comprises a plurality of through openings (24), and / or wherein the structural frame (10) comprises a liquid collection container (26), wherein the liquid collection container (26) is in fluid communication with an outlet (28).

14. The ventilation panel for a charging station according to claim 11, wherein: The structural frame (10) includes a filter mounting system (30), wherein the filter mounting system (30) is configured to receive the filter device (100), wherein the filter mounting system (30) is arranged and configured such that when the shutter support (50) is assembled to the structural frame (10) and the filter device (100) is received by the filter mounting system (30), the outer periphery (110) of the filter device (100) provides a seal between the structural frame (10) and the filter (102).

15. A charging station (3) comprising a ventilation panel (1) according to claim 1, wherein The ventilation panel (1) can be removably mounted in the ventilation opening (5) of the charging station (3).

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