EP3717307A1

EP3717307A1 - Charging device for wirelessly charging a mobile terminal

Info

Publication number: EP3717307A1
Application number: EP18804285.7A
Authority: EP
Inventors: Niels BUBKE; Hendrik Niemann
Original assignee: Elektrosil GmbH
Current assignee: Elektrosil GmbH
Priority date: 2017-11-27
Filing date: 2018-11-15
Publication date: 2020-10-07
Also published as: CN111406005A; DE202017107183U1; CN111406005B; WO2019101621A1

Abstract

In order to provide a charging device for wirelessly charging a mobile terminal, said charging device cooling as effectively as possible a mobile terminal placed onto the charging device, it is provided that the charging device has a supporting region (10) for supporting the mobile terminal, wherein the supporting region (10) forms at least one partial region of an upper side (11) of the charging device (100), a cooling apparatus comprising a fan, at least one suction duct (13) with at least one suction opening (13a) for sucking up air (27) from the surroundings of the charging device (100) to the cooling apparatus by means of the fan, wherein the at least one suction opening (13a) is arranged in such a manner that air (27) can be sucked up from above the upper side (11) of the charging device (100), and at least one outlet duct (14) with at least one outlet opening (14a), which is assigned to the supporting region (10), for guiding air from the cooling apparatus to the mobile terminal, which is arranged on the supporting region (10), for cooling the mobile terminal.

Description

Charger for wireless charging of a mobile terminal

Technical area

The invention relates to a charging device for wireless charging of a mobile terminal. In addition, the invention relates to an interior trim component comprising a charging device for wireless charging of a mobile terminal and a motor vehicle comprising a charging device for wireless charging of a mobile terminal.

State of the art

Nowadays, the recharging of a battery of mobile devices such as smartphones or tablets increasingly wirelessly as an alternative to charging via a cable connection. Especially in the automotive sector charging devices are known, which are installed for example in the dashboard or in the center console, and allow the loading of a mobile terminal.

The charging is usually done via inductive energy transfer, during the charging loss heat is generated, which must be dissipated. In particular, when the mobile terminal is used during the charging process, for example for telephoning or listening to music, large amounts of heat are generated, which can lead to a security shutdown of the mobile terminal, so that it can not be used further or even damaged.

Therefore, such wireless charging devices are usually equipped with a cooling device, which cools the mobile terminal during the charging process. In this case, fans are often used, which suck in cooling air and directed to the mobile device, so that it is flowed around with cooling air to dissipate the generated heat. If such a charging device is installed in a motor vehicle, it is usually installed or embedded in the side facing the vehicle interior of an interior trim component of the vehicle, so that only parts of the charging device, such as a support area on which the mobile terminal is to be placed during the charging process, in the interior of the motor vehicle are directed, while other components of the charging device, such as the cooling device, the controller and the charging coils are arranged in the space below the vehicle interior facing side of the interior trim component.

DESCRIPTION OF THE INVENTION: Problem, Solution, Advantages

It is the object of the present invention to provide a charging device for the wireless charging of a mobile terminal, which cools a mobile terminal placed on the charging device for wireless charging as effectively as possible.

This object is achieved by a charging device for wireless charging of a mobile terminal having a support area for supporting the mobile terminal, wherein the support area forms at least a portion of an upper side of the charging device solved. The charging device further comprises a cooling device, which comprises a fan, and at least one suction channel with at least one suction opening, which sucks air from the surroundings of the charging device towards the cooling device. The intake of air from the environment by means of the fan. The at least one suction opening is arranged such that air can be sucked in from above the top side of the loading device. Furthermore, the loading device has at least one outlet channel with at least one outlet opening assigned to the support area for guiding air from the cooling device to the mobile terminal arranged on the support area for cooling the mobile terminal.

The fan draws in air via the at least one intake duct and the at least one intake opening is arranged in the charging device such that air can be sucked in or drawn in from above the top side of the charging device through the intake opening and via the intake duct to the cooling device. The top the loading device or at least a portion thereof forms the support surface to which the mobile terminal by the user for the charging process can be placed. In general, the support surface will be aligned substantially horizontally. If the charging device is installed in a motor vehicle or an interior trim component of a motor vehicle, the top side of the charging device is generally directed toward the vehicle interior. As a rule, the loading device is embedded in the inner lining, for example a center console, of the motor vehicle in such a way that the underside and frequently also the side regions of the loading device can no longer be seen from the vehicle interior and, in particular, lie below the inner lining. Accordingly, the cooling device usually has no direct access or contact with the interior of the motor vehicle. Through the intake passage and the intake opening, according to the invention, it is always possible to suck in air from above the upper side of the loading device, in particular from the vehicle interior, and to feed it to the cooling device. The air in the vehicle interior generally has room temperature, while the air below the inner lining, for example the air in the region of the underside or the side regions of the charging device, often has a higher temperature, for example by other, heat-generating, built-in devices. Accordingly, it is ensured by the inventive design of the charging device that always relatively cool ambient air from above the charging device, in particular from the vehicle interior, is sucked in, so that the mobile terminal is effectively cooled.

In particular, the at least one suction opening is arranged in the region of the top side of the loading device and aligned such that air sucked in through it flows in from above the top side of the loading device into the at least one suction opening.

The mobile terminal may be, for example, a smartphone, a tablet, an eBook reader or other land-based devices that support the function of wirelessly charging the accumulator. Preferably, the charging of the mobile terminal takes place by means of the charging device via inductive energy transfer. For this purpose, the charging device advantageously has one or more coils, in each of which a magnetic field is generated. Charging the accumulator in the Mobile terminal is carried out by means of electromagnetic induction. Furthermore, the charging device preferably comprises a control device which controls the charging process.

The coils, the control device and other components of the charging device required for wireless charging of the mobile terminal are preferably arranged below the support region, in particular on the side of the support region facing away from the upper side.

The support area is preferably arranged on top of the loading device and serves as a support surface for supporting the mobile terminal. The top of the charging device is in the installed state of the charging device, for example, in an interior trim component of a motor vehicle, usually facing a user. The top side of the loading device is thus that region of the loading device that can be seen in a top view of a user on the loading device or on the support area of the loading device. The upper side is preferably formed substantially flat, but may also have elevations or depressions.

The support region of the charging device is preferably flat and preferably has a rectangular shape. The length of the outer sides of the rectangular support area preferably corresponds substantially to the dimensions of the mobile terminal to be loaded or is greater than the dimensions of the mobile terminal to be loaded. Preferably, a majority of the top or the entire top is formed by the support area. Preferably, therefore, the top of the charging device is formed substantially rectangular. Preferably, the support area and / or the top of the loading device at its edge, in particular circumferentially, on an increase, which prevents the Fierschtrutschen of the mobile terminal, for example while driving the motor vehicle.

The suction opening preferably forms an end of the intake duct. Starting from the intake opening, the intake duct preferably extends to the cooling device, in particular to the fan of the cooling device. Preferably, the at least one outlet channel extends from the cooling device to the at least one outlet opening, wherein preferably one end of the outlet channel through the outlet opening is formed. The cooling air is sucked through the suction opening into the intake passage and passes through the cooling device and / or flows past components of the cooling device and, starting from the cooling device, passes through the outlet channel to the outlet opening, through which it is blown out in the direction of the mobile terminal resting on the support region.

The main flow direction of the air exiting the outlet opening preferably extends to the support area of the mobile terminal such that the blown cooling air hits the mobile terminal. In particular, the blown-out air can flow substantially parallel directly past the support area. For this purpose, the cooling air is preferably obliquely directed at a small angle, for example between 1 ^° and 30 ^° , to the support area on the support area. Preferably, the outlet opening is designed in such a way and the loading device is designed such that the air flowing out of the outlet opening flows through between the support area and the resting mobile terminal and thereby cools the mobile terminal. In particular, the air blown out of the outlet opening flows below it over the entire length of the mobile terminal.

In order to advantageously suck air from above the top of the charging device, which is not mixed with the air which has left the outlet opening of the charging device, the main flow direction of the air emerging from the outlet opening is preferably oriented away from the suction opening. This means that in the flow direction of the air flowing out of the outlet opening, the suction opening is arranged behind the outlet opening, so that the cooling air, which is heated during the circulation of the mobile terminal, is flowed away from the suction opening.

Preferably, the cooling device may comprise a plurality of components. This may be, for example, differently shaped cooling elements, which dissipate heat by different effects, such as heat conduction or convection. In principle, however, the cooling device can only consist of the fan.

Preferably, the cooling device comprises a fan and a heat sink or a plurality of heat sinks. The heat sink may be made of metal, for example Aluminum, particularly preferably die-cast aluminum, to be produced. By means of the fan, air is sucked in from above the upper side of the charging device and passes through the cooling device via the intake channel and the outlet channel. In order to be able to dissipate heat, which is generated by the components of the charging device, such as the coils or the control device, from the charging device, a heat sink is preferably provided, which is arranged such that it receives the heat from the components of the charging device and either directly to the environment of the charging device gives or gives off to the air sucked by the fan and then blown out again, so that the heat can be removed with the cooling air.

Preferably, the heat sink on cooling fins, whereby the surface of the heat sink is advantageously increased. Advantageously, the heat sink is designed such that it partially forms an area of the wall of the intake duct and / or of the outlet duct.

Preferably, the cooling device is arranged on the side facing away from the top of the charging device, wherein between the support region and the cooling device components of the charging device are arranged, which generate heat, such as the coils and the control device.

Preferably, the fan is a radial fan or an axial fan, wherein a radial fan is particularly preferably provided. As a result, a particularly compact design of the charging device is made possible. The fan is preferably arranged below the support region, in particular on the side of the support region facing away from the upper side, preferably on the underside of the charging device. Preferably, the plane of rotation of the fan blades is arranged substantially parallel to the top side of the loading device and / or to the support area. Preferably, the fan is arranged in an opening, wherein the opening is preferably arranged in a wall of the intake duct, the outlet duct, in a housing or an outer side of the charging device or in a heat sink.

Preferably, the at least one intake duct and the at least one exhaust duct are at least regionally adjacent, in particular over a range of at least 30%, preferably at least 50%, in the longitudinal direction of the channels, to each other. Preferably, the region to which the intake passage and the exhaust passage adjoin each other is formed by a common partition wall. By this arrangement, the space can be optimally used within the loading device. Preferably, the region in which the intake passage and the exhaust passage adjoin each other extends from the cooling device or from the opening in which the cooling device is arranged to the upper side of the charging device. Advantageously, little or no heat transfer takes place via the dividing wall between the intake duct and the outlet duct, since the air in the outlet duct is already preheated by the absorption of heat from the heat sink or can be preheated. Advantageously, each of the two channels is self-contained, ie there is no direct flow connection between the two channels, in particular not in the adjoining area.

Preferably, the at least one suction opening and / or the at least one outlet opening are arranged in or on the upper side of the loading device. Characterized in that the at least one suction opening is preferably arranged in or at the top of the charging device, it is ensured that air from the environment of the charging device, in particular from the interior of a motor vehicle, in which the charging device can be installed, is sucked. In particular, the air from the interior of a motor vehicle is advantageously already pre-cooled by an air conditioner and thus enables a particularly optimal cooling of the mobile terminal located on the support area. The outlet opening is advantageously located in the top of the loading device in the region of the support area of the mobile terminal, in order to effectively deliver the cooling air to the area around the mobile terminal and in particular under the mobile terminal. The arrangement of the at least one suction opening and / or the at least one outlet opening in the top side of the loading device results in a very compact and closed construction or design of the loading device. In particular, the at least one intake opening and / or the at least one outlet opening can be arranged in the support area and in particular in the support surface of the support area on which the mobile terminal rests.

The upper side of the loading device preferably has a first longitudinal side and a second longitudinal side. Furthermore, the upper side has a first narrow side and a second narrow side up. This results preferably in a substantially rectangular shape of the top and / or the support area. The at least one suction opening and the at least one outlet opening are preferably each arranged in an edge region of the upper side arranged on the first narrow side or the second narrow side. Furthermore, the at least one intake opening and the at least one outlet opening are preferably arranged together in the same edge area. The first narrow side and the second narrow side preferably have the same length. Likewise, the first longitudinal side and the second longitudinal side preferably have the same length. The edge region of the narrow side preferably extends over the entire length of the first or second narrow side and has a width which is small in relation to the length of the first and / or the second longitudinal side. Preferably, the edge region has a width of at most 30%, particularly preferably not more than 20%, very particularly preferably not more than 10%, of the total length of the loading device. Furthermore, the edge region can have a width of a maximum of 15 cm, preferably a maximum of 10 cm, particularly preferably a maximum of 7.5 cm, very particularly preferably a maximum of 5 cm.

Preferably, the at least one suction opening is arranged between the first narrow side or the second narrow side and the at least one outlet opening. Preferably, the outlet opening is arranged between the suction opening and the support area of the loading device, so that it is advantageously prevented that cooling air, which is blown out of the outlet opening in the direction of the support area, is again sucked in via the suction opening. In particular, the at least one suction opening and the at least one outlet opening are not arranged on opposite sides, but preferably on the same side, the upper side of the loading device.

Preferably, the at least one intake passage is arranged between the outlet passage and an outer side of the loading device. This results in a particularly advantageous arrangement of the entire flow channel consisting of intake, intake, outlet and outlet with respect to the space in the charger. In particular, the at least one intake channel can partially form the outer wall of the charging device. In particular, the at least one intake channel may comprise a partial region of a side surface or side wall of the loading device and / or a partial region of the underside or the Form bottom wall of the loader. Preferably, the loading device has a longitudinal extent, wherein the loading device has a first and a second end portion with respect to this longitudinal extent. The outlet channel, the intake channel, the suction opening and the outlet opening are preferably arranged in the same end section of the loading device.

Preferably, the opening surface defined by the at least one suction opening and / or the opening surface spanned by the at least one outlet opening terminates flush with the top side of the loading device. The opening area of the suction opening or the outlet opening is that area which is enclosed by the edges of the suction opening or the outlet opening. Preferably, the opening area is square, rectangular or round.

The at least one intake duct and / or the at least one exhaust duct preferably extends through the upper side of the charging device. In particular, the at least one intake channel and / or the at least one outlet channel protrude beyond the top of the loading device. The opening surface defined by the at least one suction opening and / or the opening surface spanned by the at least one outlet opening is preferably arranged above the upper side of the loading device in this embodiment. The opening area of the suction opening and / or the opening area of the outlet opening may be oriented parallel or obliquely to a plane spanned by the upper side or to the support area. Particularly preferably, only the at least one intake duct extends through the upper side of the loading device. This advantageously results in a spatial offset in height to the outlet channel and the outlet opening, so that it is advantageously prevented that there will be a short circuit in which out of the outlet opening blown out air is sucked through the suction port.

Preferably, the upper side has at least one first recess, wherein the at least one suction opening is arranged in the at least one first recess and / or wherein the upper side has at least one second recess, wherein the at least one outlet opening is arranged in the at least one second recess. In this case, the opening surface defined by the at least one suction opening and / or the opening surface spanned by the at least one outlet opening is arranged below the plane of the support area. The one of the at least one Suction opening and / or the opening surface spanned by the at least one outlet opening may be arranged parallel or obliquely to the plane of the support area.

Preferably, an air-permeable protective device is arranged in the region of the at least one suction opening and / or in the region of the at least one outlet opening. The air-permeable protective device can be arranged in particular in the opening area of the at least one intake opening and / or the at least one outlet opening. The air-permeable protective device advantageously serves to prevent a falling in or sucking objects into the intake opening and / or into the outlet opening. The air-permeable protective device may be, for example, a grid or a net.

Preferably, the at least one intake duct and / or the at least one intake opening and the at least one outlet duct and / or the at least one outlet opening are formed and / or arranged relative to one another such that a short-circuit flow occurs between an inflow flowing into the at least one intake duct and one out of the at least one an outlet channel outflowing outflow is avoided. This can be achieved for example by a spaced arrangement of the suction opening and the outlet opening from each other, the arrangement of a flow barrier, for example in the form of a partition wall or the like, or by a different orientation of the suction opening and the outlet opening. In the latter case, for example, the planes in which the opening surfaces of the suction opening and the outlet opening are located at an angle, preferably at an angle of at least 15 °, more preferably be arranged by at least 25 ° to each other.

The opening surface spanned by the at least one suction opening and / or by the at least one outlet opening is preferably arranged at an angle to the plane of the support region or at an angle to a plane parallel to the plane of the support region. Preferably, the angle is greater than 20 °, more preferably greater than 45 °, most preferably greater than 75 °. Further preferably, the angle is a maximum of 90 °. Characterized in that the opening area of the at least one suction opening and / or the at least one outlet opening includes an angle with the plane of the support area, a flow short circuit between the outlet opening and the suction opening is advantageously avoided. In particular, it is preferred that the outlet opening is arranged at an angle to the plane of the support area and oriented such that the cooling air flow blown out through the outlet opening is directed towards the support area and preferably additionally away from the suction opening.

Preferably, the loading device has a first suction opening and a second suction opening, starting from the first suction opening emanating from a first feed channel and starting from the second suction opening, a second feed channel. Preferably, the first supply channel and the second supply channel form a part of the intake passage. Either the first and the second feed channel extend continuously from the first and the second suction port to the cooling device or the first and the second feed channel are merged to a single further portion of the intake passage so that the flow drawn by both supply channels flows together to the cooling device. In the latter case, the intake channel has a two-channel section and a single-channel section. The two-channel section is advantageously used to adapt the intake duct to the installation space situation in the interior of the charging device so that the intake duct advantageously encloses further components of the charging device in order to save space. Depending on the installation space situation and requirement, the two-channel section of the intake duct can be designed to be correspondingly long or short, measured on the total length of the intake duct. Also, the intake passage may consist exclusively of the two-channel section. In particular, depending on the space requirements, it may be expedient to provide more than one intake opening to ensure that sufficient cooling air can be conveyed to the cooling device. Accordingly, more than two suction openings may be provided, in which case preferably each intake opening is assigned a feed channel.

Preferably, a charging device component, in particular a fastening device of the charging device or a line connecting means of the charging device, is arranged between the first supply channel and the second supply channel. The line connecting means may preferably be a female connector. The fastening device is preferably a clip element or a latching element, by means of which the charging device, for example in an interior component of a motor vehicle, via a clip or locking system can be mounted.

Preferably, the loading device comprises a housing. The housing may be formed in one or more parts and have further lower housing for receiving individual components of the charging device. In particular, the housing encloses the charging device and at least partially or completely forms the outer surfaces of the charging device.

Preferably, the at least one suction opening and / or the at least one outlet opening is an opening in the housing of the loading device. Preferably, the at least one intake duct and / or the at least one exhaust duct is formed partially or completely in one piece with the housing and / or a housing component. Under a housing component is to be understood in a multi-part housing one of the housing parts. The housing components form at least partially the housing and thus an outer surface or outer wall of the charging device. Due to the fact that the housing and / or a housing component simultaneously forms a wall of the at least one intake duct and / or of the at least one exhaust duct, it is advantageously possible to save material. In particular, an outer wall of the housing simultaneously forms a wall of the intake passage.

Preferably, the intake port is flush with the outside of the housing, thereby preventing the intake port from protruding from the outside of the housing, which may be detrimental, in particular, during assembly of the charging device. Preferably, the outer walls of the housing and the wall of the intake passage are formed flat.

Preferably, the geometry of the intake duct and / or the outlet duct is adapted to the design or to the predetermined installation dimensions of the charging device and the other components of the charging device, so that the intake duct and / or the outlet duct advantageously takes advantage of space gaps in the charging device. Preferably, the fan is completely disposed within the housing of the charging device. Advantageously, the fan, in particular completely, is located in an interior region of the charging device, wherein preferably the only openings of the charging device are the suction opening and the outlet opening, so that cooling air is sucked in particularly effectively from the surroundings of the charging device.

Preferably, an opening area spanned by the at least one intake opening and / or the at least one outlet opening and / or a minimum cross-sectional area of the at least one intake passage and / or a minimum cross-sectional area of the at least one exhaust passage is at least 50% of an intake cross-sectional area of the fan. This area ratios advantageously ensures optimum cooling air intake and blowout. The minimum cross-sectional area of the at least one intake passage at the intake opening and the minimum cross-sectional area of the at least one outlet passage at the outlet opening are preferably located. Preferably, the Ansaugquerschnittsfläche the fan is essentially formed by the rotation surface of the fan and has, for example, a diameter in the range of 20 mm bi 50 mm, preferably from 30 mm to 40 mm, in particular of 35 mm. In the latter case, the minimum cross-sectional area of the at least one intake duct and / or the at least one exhaust duct is for example about 962 mm ² .

Preferably, an outflow opening for removing liquid from the charging device is arranged in the underside of the loading device. The outflow opening is advantageously used to drain larger quantities of liquid which pass into the loading device via the suction opening and / or via the outlet opening, for example by spilling a beverage. The outflow opening is preferably arranged at the point of the bottom, which represents the lowest point of the charging device in an installed state of the charging device. Preferably, the outflow opening is arranged in a wall of the intake duct and / or in a wall of the outlet duct, in particular as far as they form a partial region of the housing of the charging device.

Preferably, a valve is arranged at the outflow opening. The valve is preferably designed such that in the charging device accumulated liquid, in particular in a non-operating state of the charging device, can flow and in an operating state of the charging device, no outside air is sucked in via the valve or the outflow opening. Furthermore, only the flow of the liquid out of the charging device through the valve is advantageously possible, and no liquid can reach the charging device via the outflow opening. Preferably, the valve may comprise a membrane and / or it may be a diaphragm valve. The membrane covers the outflow opening, wherein the membrane is brought in the operating state of the charging device by the pressure prevailing in the intake and / or outlet channel suppression on the principle of Venturi nozzle against the outflow opening in a closed position. In the event that liquid has penetrated into the suction channel and / or into the outlet channel, the liquid collects on the valve and pushes down the membrane by gravity, so that an opening is released, through which the liquid can flow.

It is preferably provided that the outflow opening is arranged at a point of the loading device which has a maximum distance to the top side and / or to the support region of the loading device. The point with the maximum distance to the top and / or the support area of the loading device usually forms the lowest or at least one of the lowest points of the loading device. Flierdurch it is achieved that in the charging device liquid penetrated, which usually collects at the lowest point of the charging device, can be safely drained.

The loading device preferably has an underside, wherein the intake channel forms a partial region of the underside. Preferably, this portion of the bottom, which is formed by the intake passage, at the same time forms a portion of the housing of the charging device. In principle, it would also be possible for the outlet channel to similarly or additionally form a subregion of the underside in a similar manner. Preferably, the section of the intake duct forming a subarea of the underside of the charging device is formed completely or partially in the manner of an inclined plane, in particular with respect to a horizontal. If an outflow opening is provided, this is preferably arranged in the region of the lowest point of the inclined plane in the intake duct. Preferably, the outflow opening is not exactly below the fan, but arranged laterally offset to the fan so that the removal of liquid penetrated always spaced from the fan, in particular via the preferably outgoing from the fan and from there sloping inclined plane of the intake takes place.

The outflow opening is preferably arranged in the intake duct and / or in the outlet duct. The outflow opening is preferably provided in the first and / or in the second supply channel.

Preferably, the support area on a plurality of spacer element, in particular webs, for supporting the mobile terminal. Preferably, at least three, more preferably at least five spacer elements are provided. The spacer element project in particular from the support area to the outside. By means of the spacer elements, a channel system is formed on the resting area when the mobile terminal is placed on top, in which the cooling air blown out of the outlet opening can be guided below the mobile terminal between the mobile terminal and the support area.

Preferably, the spacer elements webs which protrude substantially perpendicularly from the support area. Preferably, the webs have a height of at least 0.3 mm and / or a maximum of 20 mm and are tortuous or rectilinear.

Preferably, the spacer elements are arranged parallel to each other. Furthermore, the spacer elements preferably extend substantially over the entire support area and further preferably up to the at least one intake opening and in particular into the at least one intake opening, so that the mobile terminal, which rests on the support area, is likewise arranged at a distance from the intake opening and the Intake opening is not covered. Furthermore, this achieves the effect that the air flowing out of the outlet opening flows directly into the channel system formed by the spacer elements when the mobile terminal is placed on it.

Preferably, the spacer elements extend continuously from the at least one outlet opening over the support area to one of the at least one Outlet opening opposite end of the support area. Preferably, each spacer element is designed to be closed in the longitudinal direction. As a result, the cooling air flow is guided optimally below the mobile terminal over the longitudinal extent of the support area. Furthermore, the spacer elements preferably each have the same length.

The invention further relates to an interior trim component, in particular for a motor vehicle, which has a loading device with the features described above. The interior trim component is, for example, a dashboard of a motor vehicle or the part of a center console of a motor vehicle.

Furthermore, the invention relates to a motor vehicle, which has a loading device with the features described above. Preferably, the charging device is arranged in an interior trim component of the motor vehicle, wherein the intake duct opens into an interior of the motor vehicle and / or wherein the at least one suction opening is arranged such that air from the interior of the motor vehicle can be sucked. In particular, in motor vehicles, which have an air conditioner, the air in the interior is already advantageously pre-cooled, so that the cooling of the mobile terminal is optimally cooled on the charging device by means of the cooling device within the charging device.

Brief description of the drawings

The invention will be further explained with reference to the embodiment shown in the drawing. They show schematically:

1 shows a perspective view of a loading device obliquely from above,

FIG. 2 shows a view on a longitudinal side of the loading device,

FIG. 3 is a view of the underside of the loading device;

FIG. 4 shows a view on a narrow side of the loading device, FIG. 5 shows a cross-sectional view of the loading device through the section A

-A of Fig. 1, and

FIG. 6 shows a cross-sectional view of the loading device through the section BB from FIG. 1.

Preferred embodiment of the invention

FIG. 1 shows a perspective view obliquely from above of a loading device 100 according to the invention. The loading device 100 has an upper side 11 which, apart from the rounded corner regions, is substantially rectangular. A portion of the top 11 is formed by the support portion 10 for a mobile terminal. Another portion of the top 11 is formed by the edge region 17.

The upper side 11 has a first longitudinal side 15a and a second longitudinal side 15a and a first narrow side 16a and a second narrow side 16b. The edge region 17 is arranged on an end region arranged in the second narrow side 16b.

In the edge region 17, a first suction port 13a and a second suction port 13b are arranged. Furthermore, an outlet opening 14a is arranged in the edge area 17, wherein the first suction opening 13a and the second suction opening 13b are arranged between the outlet opening 14a and the second narrow side 16b.

The first suction port 13a and the second suction port 13b each have an opening surface 19a, and the outlet port 14a has an opening surface 19b each formed rectangular in shape. In this case, the longitudinal sides of the opening area 19a of the first suction opening 13a and the second suction opening 13b are much shorter than the longitudinal sides of the opening area 19b of the outlet opening 14b. The longitudinal sides of the opening surface 19a of the first suction port 13a and the second suction port 13b are arranged parallel to the longitudinal side of the opening surface 19b of the exhaust port 14b.

Furthermore, the loading device 100 on the upper side 11 webs 24, which serve as a spacer for supporting the mobile terminal. The loading device 100 has a total of six webs 24, which are designed in a straight line and arranged parallel to each other. The webs 24 extend, starting from the first narrow side 16a, parallel to the first longitudinal side 15a and the second longitudinal side 15b toward the edge region 17 or to the outlet opening 14b. The opening area 19 B of the outlet opening 14 A encloses an angle a with the plane of the upper side 11 and the support area 10, whereby the opening area 19b is directed onto the support area 10. Furthermore, the outlet channel projects with its end region over the top 11 upwards.

FIG. 2 shows the loading device 100 in a side view onto the second longitudinal side 15b of the upper side 11. A partial region of the intake duct 13 is arranged on an underside 22 of the loading device 100. The partial region of the intake duct 13 extends from the outside 18 of the charging device 100 to approximately the middle of the longitudinal side 15b of the charging device 100.

The bottom surface of the intake duct 13 has an oblique course in the form of an inclined plane, with the slope of the oblique course extending from the middle of the longitudinal side 15b towards the outer wall 18. At the lowest point of this gradient, an outflow opening is provided which comprises a valve 23.

FIG. 3 shows the charging device 100 in a view of the underside 22. The intake channel 13 can be seen, which has a two-channel section at a region near the second narrow side 16b. The two channels are formed by a first feed channel 20a and a second feed channel 20b.

Between the first feed channel 20a and the second feed channel 20b, a fastening device 25 for fastening the loading device 100, for example in the inner distribution component of a motor vehicle, is arranged in the region of the outer wall 18. The fastening device is designed in the form of a latching element.

In each case a valve 23 is arranged in each case in an outflow opening in the first feed channel 20a and in the second feed channel 20b. The two valves 23 are arranged opposite one another and have the same distance to the outer wall 18.

In one of the first narrow side 16a associated half of the bottom 22, a portion of a heat sink 26 is arranged. The heat sink 26 is arranged in regions within the charging device 100 and partially adjacent to the Outside environment of the charging device 100, wherein at this area cooling fins are arranged to deliver heat to the environment.

FIG. 4 shows the charging device 100 in a view of the outer side 18 of the charging device 100, which is delimited in its upper region by the narrow side 16b of the upper side 11. Partial regions of the first supply channel 20a and of the second supply channel 20b extend along the outer side 18. Between these portions of the first feed channel 20 a and the second feed channel 20b, the fastening device 25 is arranged.

The first feed channel 20a and the second feed channel 20b extend from the outside 18 into the image plane and, in this view, meet behind the fastening device 25, from where the intake channel 13 extends in a single channel up to the radial fan 12.

FIG. 5 shows the loading device 100 in a cross-sectional view along the section line A-A, which is shown in FIG. Within the half of the charging device 100 assigned to the second narrow side 16b, a radial fan 12 is arranged inside the housing 21 of the charging device 100.

Starting from the upper side 11, the first feed channel 20a extends along the outer side 18 towards the single-channel section of the intake duct 13, at the end of which the radial fan 12 is arranged in an intermediate wall opening. The second supply channel 20b (not shown) runs correspondingly.

The radial fan 12 is arranged such that the plane of rotation of the fan blades is oriented parallel to the support area 10. The air flow 27 sucked in through the suction opening 13b by means of the radial fan 12 first passes through the first feed channel 20a and through the second feed channel 20b parallel to the outer wall 18 and is then deflected by approximately 90 ° and runs parallel to the underside 22 of the loading device 100 Air flow 27 is deflected by 90 ° in the direction of the radial fan 12, from which the air flow 27 is again deflected by 90 ° and is directed along the outlet channel 14 upwards to the top 11, where it is blown through the outlet opening 14a in the direction of the support area 10. FIG. 6 shows the charging device 100 in a cross-sectional view along the section line BB shown in FIG. In this illustration, the cross section through the second feed channel 20b and the valve 23 runs.

LIST OF REFERENCE NUMBERS

100 loader

10 circulation area

11 top

12 radial fans

13 intake duct

13a first intake port 13b second intake port

14 exhaust duct

14a outlet opening

15a first longitudinal side

15b second longitudinal side 16a first narrow side 16b second narrow side

17 border area

18 outside

19a, 19b opening area

20a first supply channel

20b two feed channel

21 housing

22 bottom

23 valve

24 bridges

25 fastening device

26 heat sink

27 air flow a, ß angle

Claims

A charging device for wirelessly charging a mobile terminal comprising a support area (10) for supporting the mobile terminal, the support area (10) forming at least a portion of an upper side (11) of the charging device (100), a cooling device comprising a fan, at least an intake duct (13) with at least one intake opening (13a) for sucking air (27) from the environment of the charging device (100) to the cooling device by means of the fan, wherein the at least one intake opening (13a) is arranged such that air (27) from above the upper side (11) of the loading device (100) can be sucked, and at least one outlet channel (14) with at least one, the support area (10) associated with outlet opening (14a) for guiding air from the cooling device to on the support area (10 ) arranged mobile terminal for cooling the mobile terminal.

The charging device (100) of claim 1, wherein the fan is a radial fan (12) or an axial fan.

3. Loading device (100) according to one of the preceding claims, wherein the at least one suction channel (13) and the at least one outlet channel (14) at least partially adjacent to each other.

4. Loading device (100) according to one of the preceding claims, wherein the at least one suction opening (13a) and / or the at least one outlet opening (14a) in the upper side (11) of the loading device (100) are arranged.

5. Loading device (100) according to one of the preceding claims, wherein the upper side (11) has a first longitudinal side (15a) and a second longitudinal side (15b), wherein the upper side (11) has a first narrow side (16a) and a second narrow side (11). 16b), wherein the at least one suction opening (13a) and the at least one outlet opening (14a) are each arranged in an edge region (17) of the top side (11) arranged on the first narrow side (16a) or the second narrow side (16b), preferably the at least one suction opening (13a) and the at least one outlet opening (14a) are arranged together in the same edge area (17).

6. Loading device (100) according to claim 5, wherein the at least one suction opening (13a) between the first narrow side (16a) or the second narrow side (16b) and the at least one outlet opening (14a) is arranged.

7. Loading device (100) according to any one of the preceding claims, wherein the at least one suction channel (13) between the at least one outlet channel (14) and an outer side (18) of the loading device is arranged.

8. Loading device (100) according to one of the preceding claims, wherein the opening surface (19a, 19b) defined by the at least one suction opening (13a) and / or by the at least one outlet opening (14b) is flush with the top side (11) of the loading device (100) completes.

9. Loading device (100) according to one of the preceding claims, wherein the at least one intake passage (13) and / or the at least one outlet passage (14) extend through the upper side (11) of the loading device (100).

10. Loading device (100) according to one of the preceding claims, wherein the upper side (11) has at least one first recess, wherein the at least one suction opening (13a) is arranged in the at least one first recess and / or wherein the upper side (11) at least a second recess, wherein the at least one outlet opening (14a) is arranged in the at least one second recess.

11. Loading device (100) according to one of the preceding claims, wherein in the region of the at least one suction opening (13a) and / or in the region of the at least one outlet opening (14a) an air-permeable protective device is arranged.

12. Loading device (100) according to any one of the preceding claims, wherein the at least one suction channel (13) and / or the at least one suction port (13a) and the at least one outlet channel (14) and / or the at least one outlet opening (14a) is formed and / or are arranged relative to one another such that a short-circuit flow is avoided between an inflow flowing into the at least one intake duct (13) and an outflow flowing out of the at least one exhaust duct (14).

13. Loading device (100) according to one of the preceding claims, wherein the opening surface (19b) defined by the at least one suction opening (13a) and / or by the at least one outlet opening (13a) is inclined at an angle (a) to the plane of the support area (13). 10) or at an angle (ß) to a plane parallel to the support surface (10) plane is arranged.

14. Loading device (100) according to one of the preceding claims, wherein the loading device (100) has a first suction port (13a) and a second suction port (13b), starting from the first (13a) suction port, a first supply channel (20a) goes out and starting from the second suction port (13b) emanates a second supply channel (20b).

15. Loading device (100) according to claim 14, wherein between the first feed channel (20a) and the second feed channel (20b) a charging device component, in particular a fastening device (25) or a line connecting means is arranged.

16. Loading device (100) according to one of the preceding claims, wherein the loading device (100) comprises a housing (21).

17. Loading device (100) according to claim 16, wherein the at least one suction opening (13a) and / or the at least one outlet opening (14a) is an opening in the housing (21) of the loading device (100).

18. Loading device (100) according to claim 16 or 17, wherein the intake channel (13) and / or the outlet channel (14) partially or completely integrally with the housing (21) of the charging device (100) and / or a housing component of the charging device (100 ) are formed.

19. Loading device (100) according to one of claims 16 to 18, wherein the intake passage (13) is flush with an outer side (18) of the housing (21) of the loading device (100).

20. A charging device (100) according to any one of claims 16 to 19, wherein the fan is completely disposed within the housing (21) of the charging device (100).

21. Loading device (100) according to one of the preceding claims, wherein one of the at least one suction port (13a) and / or the at least one outlet port (14b) spanned opening area (19a, 19b) and / or a minimum cross-sectional area of the at least one intake passage ( 13) and / or the at least one outlet channel (14) is at least 50% of a Ansaugquerschnittsfläche the fan.

22. Loading device (100) according to one of the preceding claims, wherein the loading device (100) has a lower side (22), and wherein in the lower side (22) of the loading device (100) has an outflow opening for discharging liquid from the loading device (100). is arranged.

23. Loading device (100) according to claim 22, wherein a valve (23) is arranged at the outflow opening.

24. Loading device (100) according to claim 22 or 23, wherein the outflow opening is arranged at a point of the loading device (100), which has a maximum distance from the top (11) and / or support area (10) of the loading device (100).

25. Loading device (100) according to one of the preceding claims, wherein the loading device (100) has a lower side (22) and wherein the Intake passage (13) forms a partial region of the underside (22), wherein preferably the part of the underside (22) forming portion of the intake duct (13) is formed completely or partially in the manner of an inclined plane.

26. Loading device (100) according to any one of the preceding claims, wherein the support region (10) a plurality, preferably at least three, more preferably at least five, spacer elements, in particular webs (24), for supporting the mobile terminal.

27. Loading device (100) according to claim 26, wherein the spacer elements are arranged parallel to each other.

28. Loading device (100) according to claim 26 or 27, wherein the spacer elements extend continuously from the at least one outlet opening (14a) over the support area (10) to one of the at least one outlet opening (14a) opposite end of the support area (10) ,

29. Loading device (100) according to any one of claims 26 to 28, wherein the spacer elements each have the same length.

30. Interior trim component, in particular for a motor vehicle, comprising a loading device (100) according to one of claims 1 to 29.

31. Motor vehicle having a charging device (100) according to one of claims 1 to 29.

32. Motor vehicle according to claim 31, wherein the charging device (100) is arranged in an interior trim component of the motor vehicle, wherein the intake duct (13) opens into an interior of the motor vehicle and / or wherein the at least one suction opening (13a) is arranged such that air can be sucked from the interior of the motor vehicle.