KR20210088347A - Wireless charging system for vehicle capable of releasing heat generated by wireless power transmission - Google Patents

Abstract

The present invention relates to a wireless charging system for a vehicle capable of dissipating heat generated by performing a wireless power transmission operation and a thermoelectric element provided in the vehicle through the thermoelectric element. The wireless charging system for the vehicle according to one embodiment of the present invention comprises: a wireless charging module installed on a dashboard of the vehicle, and transmitting power wirelessly to a user terminal through electromagnetic induction; a heat dissipation module installed on the dashboard, shielding the wireless charging module by slide-moving on an upper part of the wireless charging module, and dissipates heat generated from the shielded wireless charging module; and a processor that controls an output of the wireless charging module according to whether or not the wireless charging module is shielded. Therefore, the present invention is capable of preventing the wireless charging module or the user terminal from overheating.

Description

A wireless charging system for vehicles capable of dissipating heat generated during wireless power transmission {WIRELESS CHARGING SYSTEM FOR VEHICLE CAPABLE OF RELEASING HEAT GENERATED BY WIRELESS POWER TRANSMISSION}

The present invention relates to a wireless charging system for a vehicle capable of dissipating heat generated by performing a wireless power transmission operation through a thermoelectric element provided in the vehicle.

The wireless charging method is performed by a wireless charging device and a wireless power receiving device, and power is transferred from the wireless charging device to the wireless power receiving device through an electromagnetic induction phenomenon between the two devices.

More specifically, the wireless charging method is a method in which a magnetic field generated in the transmitting coil by magnetic coupling between the transmitting coil inside the wireless charging device and the receiving coil inside the wireless power receiving device induces a current in the receiving coil. The way power moves.

According to this wireless charging method, heat is generated in the transmission coil inside the wireless charging device, and such heat has a problem of lowering power transmission efficiency.

In order to prevent this, a technique for removing heat generated inside a wireless charging device as in Korean Patent Registration No. 10-1995805 (hereinafter referred to as prior art) has been proposed.

1 is a view for explaining a heat dissipation method of a conventional wireless charging device, and is an extract of FIG. 1 of the prior art.

Referring to FIG. 1 , the prior art uses a heat sink 20 to dissipate heat generated by the transmission coil unit 10 and a heat dissipation fan 30 for blowing air to the heat sink 20 .

Specifically, in the prior art, the heat generated by the transmitting coil unit 10 is transferred to the heat sink 20 , and air is supplied to the heat dissipation rib 21 provided in the heat sink 20 by using the heat dissipation fan 30 . blow off Accordingly, heat exchange occurs in the heat dissipation rib 21 , and the temperature of the transmitting coil unit 10 is lowered by the heat exchange.

That is, the prior art lowers the temperature of the wireless charging device through an air cooling method, and for this, a means for discharging air (the heat dissipation fan 30 ) and a space through which the air can flow are required.

Accordingly, according to the prior art, the volume of the wireless charging device is inevitably increased. This increase in volume does not meet the miniaturization required as the wireless charging device is structurally combined with various spaces and various devices in recent years. .

An object of the present invention is to provide a wireless charging system for a vehicle capable of discharging heat generated from a wireless charging module installed in a narrow space in a vehicle to a large space inside the vehicle.

Another object of the present invention is to provide a wireless charging system for a vehicle in which a cover for selective shielding of a wireless charging module can be used as a heat dissipation module.

Another object of the present invention is to provide a wireless charging system for a vehicle capable of charging a user terminal at a low speed or a high speed depending on whether a heat dissipation operation is performed.

Another object of the present invention is to provide a wireless charging system for a vehicle that can output information of the user terminal through an in-vehicle display device when the user cannot visually check the user terminal mounted on the wireless charging module.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned may be understood by the following description, and will be more clearly understood by the examples of the present invention. Moreover, it will be readily apparent that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

According to the present invention, the heat generated by the wireless charging module installed in a narrow space in the vehicle can be radiated to a wide space inside the vehicle by shielding the wireless charging module fixedly installed on the dashboard of the vehicle from the interior space of the vehicle through the heat dissipation module.

In addition, the present invention by shielding the wireless charging module through the heat dissipation module that slides on the top of the wireless charging module, it is possible to use a cover for the selective shielding of the wireless charging module as a heat dissipation module.

In addition, the present invention may control the output of the wireless charging module according to whether the wireless charging module is shielded by the heat dissipation module, thereby charging the user terminal at a low speed or a high speed depending on whether a heat dissipation operation is performed.

In addition, the present invention wirelessly connects the display device and the user terminal in the vehicle when the user terminal mounted on the wireless charging module is shielded by the heat dissipation module, so that the user cannot visually check the user terminal mounted on the wireless charging module. At this time, information of the user terminal may be output through an in-vehicle display device.

According to the present invention, the heat generated by the wireless charging module installed in a narrow space in the vehicle is radiated to a large space inside the vehicle, so that the heat generated in the wireless charging module can be quickly dispersed to the outside, and accordingly, by the wireless power transmission operation It is possible to prevent the wireless charging module or the user terminal from overheating.

In addition, the present invention uses the cover for selective shielding of the wireless charging module as a heat dissipation module, so that a component of the dashboard that has been installed in the vehicle in the prior art without additionally installing a separate device for dissipating the wireless charging module in the vehicle ( cover) has the effect of dissipating the wireless charging module's heat.

In addition, the present invention can prevent the rapid temperature rise of the wireless charging module due to the fast charging of the user terminal by charging the user terminal at a low speed or a high speed depending on whether a heat dissipation operation is performed.

In addition, the present invention has the effect of ensuring continuous usability of the user terminal by outputting the information of the user terminal through the in-vehicle display device when the user cannot visually check the user terminal mounted on the wireless charging module. have.

In addition to the above-described effects, the specific effects of the present invention will be described together while describing specific details for carrying out the invention below.

1 is a view for explaining a heat dissipation method of a conventional wireless charging device.
2 is a block diagram illustrating components of a wireless charging system for a vehicle according to an embodiment of the present invention.
3 is a view showing a state in which the wireless charging system for a vehicle of the present invention is installed on the dashboard of the vehicle.
4 is a view showing the structure of a wireless charging module according to an embodiment.
5 is a diagram showing the structure of a wireless charging module according to another embodiment.
6 is a view for explaining heat generation of the wireless charging module.
7 is a view showing the structure of a wireless charging module fixedly installed on the dashboard and a heat dissipation module installed to be able to slide on the dashboard.
8 is a view showing a state in which the heat generated in the wireless charging module is emitted to the outside through the heat dissipation module.
9 is a diagram illustrating a state in which information of a user terminal is displayed through an in-vehicle display unit when a wireless charging module on which the user terminal is mounted is shielded by a heat dissipation module;

The above-described objects, features and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

In addition, in the present specification, that any component is disposed on the "upper (or lower)" or "top (or lower)" of the component means that any component is disposed in contact with the upper surface (or lower surface) of the component. Furthermore, it may mean that other components may be interposed between the component and any component disposed on (or under) the component.

In addition, in the present specification, when it is described that a certain element is "connected", "coupled" or "connected" to another element, the elements may be directly connected or connected to each other, but there is another element between each element. It should be understood that elements may be “interposed,” or that each element may be “connected,” “coupled,” or “connected to,” through another element.

Also, as used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as "consisting of" or "comprising" should not be construed as necessarily including all of the various components or various steps described in the specification, some of which components or some steps are It should be construed that it may not include, or may further include additional components or steps.

In addition, in the present specification, when "A and / or B" is said, it means A, B or A and B unless otherwise stated, and when said "C to D", it is Unless otherwise specified, it means C or more and D or less

The present invention relates to a wireless charging system for a vehicle capable of dissipating heat generated by performing a wireless power transmission operation through a thermoelectric element provided in the vehicle.

Hereinafter, a wireless charging system for a vehicle according to an embodiment of the present invention will be described in detail with reference to FIGS. 2 to 9 .

2 is a block diagram illustrating the components of a wireless charging system for a vehicle according to an embodiment of the present invention, and FIG. 3 is a diagram illustrating a state in which the wireless charging system for a vehicle of the present invention is installed on a dashboard of a vehicle.

4 is a diagram illustrating the structure of a wireless charging module according to an embodiment, and FIG. 5 is a diagram illustrating the structure of a wireless charging module according to another embodiment.

6 is a view for explaining heat generation of the wireless charging module.

7 is a diagram illustrating the structure of a wireless charging module fixedly installed on the dashboard and a heat dissipation module installed to be slidably moved on the dashboard. In addition, FIG. 8 is a diagram illustrating a state in which heat generated in the wireless charging module is emitted to the outside through the heat dissipation module.

9 is a diagram illustrating a state in which information of a user terminal is displayed through an in-vehicle display unit when the wireless charging module on which the user terminal is mounted is shielded by the heat dissipation module.

Referring to FIG. 2 , the wireless charging system 1 for a vehicle according to an embodiment of the present invention includes a wireless charging module 100 , a heat dissipation module 200 , a processor 300 , a display unit 400 and a memory 500 . may include. Meanwhile, the display unit 400 may include various display devices, which will be described later.

The vehicle wireless charging system 1 shown in FIG. 2 is according to an embodiment, and its components are not limited to the embodiment shown in FIG. 2, and some components may be added, changed, or deleted as necessary. can

The wireless charging system 1 for a vehicle may be provided in a vehicle. More specifically, the wireless charging module 100 , the heat dissipation module 200 , and the display unit 400 may be installed on the dashboard 10b of the vehicle, and the processor 300 is provided at any location within the vehicle. to control the wireless charging module 100 , the heat dissipation module 200 , and the display unit 400 .

Referring to FIG. 3 , the wireless charging module 100 may be fixedly installed under the dashboard 10b of the vehicle, and the user terminal 2 may be mounted on the wireless charging module 100 for a wireless charging operation. .

Meanwhile, the heat dissipation module 200 may be installed to shield the wireless charging module 100 from the lower portion of the dashboard 10b. More specifically, the heat dissipation module 200 may expose the wireless charging module 100 and the user terminal 2 to the outside by being inserted into the dashboard 10b, and by being discharged from the dashboard 10b, the wireless charging module ( 100) and the user terminal 2 may be shielded from the outside.

Specific structures and operations of the aforementioned wireless charging module 100 and the heat dissipation module 200 will be described later.

Referring back to FIGS. 2 and 3 together, the display unit 400 includes a main display 410 , a cluster display 420 , a front passenger display 430 , a Center Information Display (CID) 440 , and a Head (HUD). Up Display, 450) and RSE (Rear Seat Entertainment, 460) may include at least one.

The main display 410 may be installed on the dashboard 10b, the cluster display 420 may be installed behind the steering wheel among the dashboard 10b on the driver's seat side, and the passenger seat display 430 may be installed on the dashboard on the passenger's seat side. It may be installed in the 10b, and the CID 440 may be installed below the main display 410 in the center of the dashboard 10b.

In addition, although not shown in the drawings, the HUD 450 may be provided on the dashboard 10b to project a screen inside the windshield of the vehicle, and the RSE 460 is a front seat (driver's seat and front passenger's seat) It is installed in the rear and can be installed toward the rear seat occupants.

In addition to the display devices described above, the display unit 400 may include various devices capable of visually outputting a screen.

Hereinafter, the wireless charging module 100 will be described in detail.

The wireless charging module 100 may wirelessly transmit power to the user terminal 2 through electromagnetic induction.

More specifically, when the wireless charging module 100 is aligned with the user terminal 2 mounted thereon, the wireless charging module 100 is magnetically coupled to the user terminal 2 and the user terminal (2) can transmit power.

To this end, the wireless charging module 100 may include at least one transmitting coil 140 for generating a magnetic field therein. In other words, the wireless charging module 100 may wirelessly transmit power to the user terminal 2 through at least one transmission coil 140 provided therein to generate a magnetic field.

A power transmission process of the wireless charging module 100 will be described in more detail.

The wireless charging module 100 and the user terminal 2 may be arranged such that the receiving coil in the user terminal 2 is located on the transmitting coil 140 in the wireless charging module 100, and thus the transmitting coil 140 ) and the receiving coil may be magnetically coupled.

At this time, the wireless charging module 100 may apply a current to the transmitting coil 140 , and a magnetic field may be generated in the transmitting coil 140 . The magnetic field generated in the transmitting coil 140 may induce a current in the receiving coil, and the current induced in the receiving coil may charge the battery in the user terminal 2 .

Hereinafter, the structure of the wireless charging module 100 performing the above-described wireless charging operation will be described in detail with reference to FIGS. 4 and 5 .

Referring to FIG. 4 , the wireless charging module 100 according to an embodiment includes a case 110 , a substrate 120 disposed therein, a flat core 130 disposed on the board 120 , and a flat core core. It may be composed of a transmitting coil 140 disposed on the 130 . The case 110 may include a top case 110t and a bottom case 110b, and the top case 110t and the bottom case 110b may be coupled to each other to airtight the inner space of the case 110 .

A power supply circuit for applying a current to the transmission coil 140 by using an external power source may be mounted on the substrate 120, and this power supply circuit may be implemented with a printed circuit board (PCB), an integrated circuit (IC), etc. can

The flat core 130 may be made of a component that has high magnetic permeability and is not easily broken. More specifically, the flat core 130 may be made of an amorphous metal material such as cobalt (Co), iron (Fe), nickel (Ni), boron (B), silicon (Si), or a combination thereof, and a sheet Or it may have a thin film form. For example, in the present invention, the flat core 130 may be a ferrite core.

Accordingly, the flat core 130 may increase the magnetic flux density of the magnetic field generated by the transmitting coil 140 and efficiently form a magnetic path of the magnetic field.

The transmission coil 140 is a flat coil disposed on the flat core 130 and may have a circular, oval, or rectangular shape. Terminals for electrical connection with the above-described power supply circuit may be provided at both ends of the transmitting coil 140 , and the power supply circuit is connected to the terminal provided in the transmitting coil 140 under the control of the processor 300 . current can be applied.

In one use example, when the user terminal 2 is mounted on the top case 110t, the power supply circuit may apply a current to the transmission coil 140 . Accordingly, a magnetic field is generated in the transmitting coil 140 , and the magnetic field generated in the transmitting coil 140 may induce a current in the receiving coil in the user terminal 2 . The current induced in the receiving coil is supplied to the internal battery of the user terminal 2 , so that the internal battery of the user terminal 2 may be charged.

5 is a diagram illustrating a wireless charging module 100 according to another embodiment. Since the wireless charging module 100 shown in FIG. 5 differs only in the structure of the wireless charging module 100 and the transmitting coil 140 shown in FIG. 4 , only the difference will be mainly described below.

The transmitting coil 140 included in the wireless charging module 100 according to another embodiment includes a plurality of first coils 140a spaced apart from each other on the flat core 130 and a plurality of first coils 140a and The second coil 140b may be disposed on the plurality of first coils 140a to partially overlap.

For example, as shown in FIG. 5 , the two first coils 140a may be spaced apart from each other in the area formed by the flat core 130 . In this case, the single second coil 140b may be disposed to overlap the two first coils 140a so as to overlap a portion of the two first coils 140a. A terminal for electrical connection with the above-described power supply circuit may be provided at each end of the first coil 140a and the second coil 140b, and the power supply circuit is connected to each of the first coils 140a through the corresponding terminals. ) and/or a current may be applied to the second coil 140b.

In one use example, the two user terminals 2 may be mounted on the top case 110t. For example, the two user terminals 2 may be respectively mounted on the two first coils 140a. In this case, the power supply circuit may apply current to the two first coils 140a. Accordingly, magnetic fields are generated in the two first coils 140a, and the magnetic fields generated in each of the first coils 140a may induce currents in the receiving coils in the two user terminals 2 . As the current induced in each receiving coil is supplied to the batteries in each user terminal 2 , the internal batteries of the two user terminals 2 can be simultaneously charged.

Unlike the above, any one user terminal 2 may be mounted on any one of the two first coils 140a, and the other user terminal 2 may be mounted on the second coil 140b. ) can be mounted on the At this time, the power supply circuit may apply a current to the first coil 140a disposed under one of the user terminals 2 and the second coil 140b disposed under the other user terminal 2, Accordingly, the internal batteries of the two user terminals 2 can be simultaneously charged.

Hereinafter, the heat dissipation module 200 will be described in detail.

The heat dissipation module 200 may slide on the top of the wireless charging module 100 to shield the wireless charging module 100 from the outside, and radiate heat generated from the shielded wireless charging module 100 .

Referring back to FIG. 3 , the heat dissipation module 200 may be installed on the dashboard 10b at a higher position than the wireless charging module 100 , and by sliding horizontally with respect to the wireless charging module 100 , the wireless charging module (100) may be exposed to the outside or shielded from the outside.

When the wireless charging module 100 is shielded, the heat dissipation module 200 may radiate heat generated in the wireless charging module 100 .

Referring to FIG. 6 , when the wireless charging module 100 wirelessly transmits power according to the method described above, heat may be generated in the transmission coil 140 . More specifically, the transmitting coil 140 is a wire wound shape, and may have an impedance proportional to the number of times the wire is wound, and when a current continuously flows in the transmitting coil 140, transmission is performed by the aforementioned impedance. Heat may be generated in the coil 140 .

The heat generated in the transmitting coil 140 lowers the power transmission efficiency. In order to prevent such a decrease in the power transmission efficiency, the heat dissipation module 200 may radiate the heat generated in the transmitting coil 140 to the interior space of the vehicle.

Hereinafter, the operation of the heat dissipation module 200 will be described in detail with reference to FIGS. 7 and 8 .

Referring to FIG. 7 , for example, a depression 10a that is depressed in a downward direction may be formed in the lower portion of the dashboard 10b, and the wireless charging module 100 may be fixedly installed in the depression 10a. have. At this time, the user terminal 2 may be mounted on the wireless charging module 100 inside the depression 10a.

Meanwhile, the heat dissipation module 200 may be provided on one side of the dashboard 10b , and may be inserted into or discharged from the dashboard 10b by sliding.

The slide movement of the heat dissipation module 200 may be performed by a user or may be performed automatically. When the heat dissipation module 200 is moved by the user, a protrusion 21 protruding upward may be formed at one end of the heat dissipation module 200 for convenience of operation.

When the heat dissipation module 200 is completely discharged from the dashboard 10b, the wireless charging module 100 and the user terminal 2 may be shielded from the outside. On the other hand, when the heat dissipation module 200 is inserted into the dashboard 10b, the wireless charging module 100 and the user terminal 2 may be exposed to the outside.

In a state in which the wireless charging module 100 and the user terminal 2 are shielded from the outside, the heat dissipation module 200 may radiate heat generated from the wireless charging module 100 .

More specifically, the heat dissipation module 200 may use the Peltier effect to emit heat generated in the wireless charging module 100 . In other words, the heat dissipation module 200 may absorb heat provided from the wireless charging module 100 through one surface and radiate the absorbed heat through the other surface by using electromotive force.

To this end, the heat dissipation module 200 may include a thermoelectric element and a control circuit (not shown) for applying a voltage to the thermoelectric element. A thermoelectric element is a combination of different types of metals, and when a current is applied to the joined metal, one contact point may generate heat and the other contact point may absorb heat. Here, a contact that generates heat is defined as a heating contact 220 , and a contact that absorbs heat is defined as a heat absorbing contact 210 .

Referring to FIG. 8 , the heat dissipation module 200 may include a thermoelectric element in which the heating contact 220 and the heat absorbing contact 210 are disposed to face each other. At this time, in order to absorb heat generated from the wireless charging module 100 , the heat absorbing contact 210 may be disposed toward the wireless charging module 100 .

When the wireless charging module 100 is shielded, the control circuit may apply a voltage to the thermoelectric element under the control of the processor 300 to be described later. At this time, since the heat absorbing contact 210 is disposed toward the wireless charging module 100 , the heat absorbing contact 210 may absorb heat generated by the wireless charging module 100 . Meanwhile, the heating contact 220 may radiate heat absorbed through the heat absorbing contact 210 to the outside of the shielded space (the depression 10a).

Through such a method, the present invention dissipates heat generated by the wireless charging module 100 installed in a narrow space in the vehicle to a wide space inside the vehicle, thereby quickly dispersing the heat generated in the wireless charging module 100 to the outside. and, accordingly, it is possible to prevent the wireless charging module 100 or the user terminal 2 from being overheated by the wireless power transmission operation.

In addition, the present invention uses a cover for selective shielding of the wireless charging module 100 as the heat dissipation module 200, so that a separate device for dissipating the wireless charging module 100 is additionally installed in the vehicle in a conventional vehicle. There is an effect that the wireless charging module 100 can be dissipated through the components (cover) of the dashboard 10b that have been installed.

Hereinafter, the operation of the processor 300 will be described in detail.

As described above, the processor 300 may control the wireless charging module 100 , the heat dissipation module 200 , and the display unit 400 with reference to the memory 500 . To this end, the processor 300 is ASICs (application specific integrated circuits), DSPs (digital signal processors), DSPDs (digital signal processing devices), PLDs (programmable logic devices), FPGAs (field programmable gate arrays), controllers (controllers) , may be implemented as a physical element including at least one of micro-controllers or a combination thereof.

The processor 300 may control the output of the wireless charging module 100 according to whether the wireless charging module 100 is shielded.

To this end, the processor 300 may determine whether the wireless charging module 100 is shielded. As described above, since the heat dissipation module 200 shields the wireless charging module 100 by sliding, the processor 300 determines whether the wireless charging module 100 is shielded based on the position of the heat dissipation module 200 . can do.

Referring to FIG. 7 , the wireless charging system for a vehicle 1 may further include a sensor unit 600 provided on one side of the depression 10a in which the wireless charging module 100 is installed.

In one example, the sensor unit 600 may be a position detection sensor. At this time, the sensor unit 600 may measure the distance to the heat dissipation module 200 in various ways, and detect the position of the heat dissipation module 200 based on the measured distance. The sensor unit 600 may provide the detected position to the processor 300 , and the processor 300 determines that the wireless charging module 100 is completely installed by the heat dissipation module 200 based on the position of the heat dissipation module 200 . It can be determined whether or not it is shielded.

In another example, the sensor unit 600 may be a light detection sensor. If the wireless charging module 100 is not shielded by the heat dissipation module 200, external light may be provided into the recessed portion 10a, on the other hand, the wireless charging module 100 by the heat dissipation module 200 When shielded, external light may not be provided to the inside of the depression 10a. The processor 300 may determine whether the wireless charging module 100 is completely shielded by the heat dissipation module 200 based on the intensity of the light detected by the sensor unit 600 .

Meanwhile, the processor 300 may control the output of the wireless charging module 100 by basically adjusting the amount of current flowing through the transmission coil 140 in the wireless charging module 100 . At this time, as the amount of current flowing through the transmitting coil 140 increases, more heat may be generated in the transmitting coil 140 .

As described above, excessive heat generation may degrade power transmission efficiency. However, when the wireless charging module 100 is shielded, since the heat generated in the wireless charging module 100 is emitted by the heat dissipation module 200 , the processor 300 determines that the wireless charging module 100 is the heat dissipation module 200 . If shielded by, it is possible to increase the output of the wireless charging module 100 than otherwise.

For example, the processor 300 may control the output of the wireless charging module 100 as a first reference output or a second reference output according to whether the wireless charging module 100 is shielded. Here, the second reference output may be greater than the first reference output.

Specifically, when it is determined that the wireless charging module 100 is not shielded, the processor 300 controls the amount of current applied to the transmission coil 140 in the wireless charging module 100 to control the output of the wireless charging module 100 . It can be controlled by 1 reference output. On the other hand, when it is determined that the wireless charging module 100 is shielded, the processor 300 adjusts the amount of current applied to the transmission coil 140 in the wireless charging module 100 to output the second output of the wireless charging module 100 . It can be controlled by reference output.

Accordingly, when the heat generated by the wireless charging module 100 is not emitted by the heat dissipation module 200, the wireless charging module 100 may provide a first reference output to the user terminal 2, When the heat generated by the wireless charging module 100 is emitted by the heat dissipation module 200 , the wireless charging module 100 may provide a second reference output greater than the first reference output to the user terminal 2 . have.

As described above, the present invention prevents the rapid temperature rise of the wireless charging module 100 due to fast charging of the user terminal 2 by charging the user terminal 2 at a low speed or a high speed depending on whether a heat dissipation operation is performed. can do.

Meanwhile, the processor 300 may control the in-vehicle display unit 400 to be wirelessly connected to the user terminal 2 according to whether the wireless charging module 100 is shielded.

When the wireless charging module 100 is shielded by the heat dissipation module 200 as shown in FIG. 8 , the user cannot visually check the user terminal 2 . At this time, in order for the user to check the information of the user terminal 2 through the display unit 400 , the processor 300 performs the in-vehicle display unit without a separate command from the user when the wireless charging module 100 is shielded. By executing the wireless access function of 400 , the display unit 400 may be controlled to be wirelessly connected to the user terminal 2 .

Conversely, when the wireless charging module 100 is not shielded, the processor 300 may control the display unit 400 to be wirelessly connected to the user terminal 2 according to a user command.

Additionally, the processor 300 may control the in-vehicle display unit 400 to display information of the user terminal 2 according to whether the wireless charging module 100 is shielded.

Referring to FIG. 9 as an example, a user driving a vehicle performs navigation through the user terminal 2 , then mounts the user terminal 2 on the wireless charging module 100 and slides the heat dissipation module 200 . By moving, the wireless charging module 100 and the user terminal 2 can be shielded. In this case, the user cannot visually check the map displayed on the user terminal 2 .

At this time, in order for the user to check the map through the display unit 400, the processor 300 wirelessly connects the display unit 400 in the vehicle without a separate command from the user when the wireless charging module 100 is shielded. By executing the function, the display unit 400 can be controlled to receive map information from the user terminal 2 , and by executing the screen display function of the display unit 400 , the display unit 400 is transmitted from the user terminal 2 . It is possible to control to output the received map information.

In FIG. 9 , the display unit 400 displays a map as an example, but the display unit 400 displays information on the user terminal 2 under the control of the processor 300 , for example, information generated from the user terminal 2 . It goes without saying that it is possible to display information about any event (sending and/or receiving calls and/or messages).

As described above, the present invention outputs the information of the user terminal 2 through an in-vehicle display device when the user cannot visually check the user terminal 2 mounted on the wireless charging module 100, so that the user terminal (2) has the effect of ensuring continuous usability.

As described above, the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings disclosed in this specification, and various methods can be obtained by those skilled in the art within the scope of the technical spirit of the present invention. It is obvious that variations can be made. In addition, although the effects according to the configuration of the present invention are not explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the configuration should also be recognized.

Claims (13)

a wireless charging module installed on the dashboard of the vehicle and wirelessly transmitting power to the user terminal through electromagnetic induction;
a heat dissipation module installed on the dashboard, sliding on the top of the wireless charging module to shield the wireless charging module, and emitting heat generated from the shielded wireless charging module; and
A processor for controlling the output of the wireless charging module according to whether the wireless charging module is shielded
Car wireless charging system.
According to claim 1,
The wireless charging module includes at least one transmission coil therein, and wirelessly transmits power to the user terminal through a magnetic field generated in the transmission coil.
Car wireless charging system.
According to claim 1,
The wireless charging module
case;
a substrate disposed inside the case;
a flat core provided on the substrate; and
at least one transmitting coil provided on the flat core
Car wireless charging system.
4. The method of claim 3,
the at least one transmitting coil
a plurality of first coils spaced apart from each other on the flat core; and
and a second coil disposed on the plurality of first coils to partially overlap the plurality of first coils.
Car wireless charging system.
According to claim 1,
The heat dissipation module emits heat generated from the wireless charging module using the Peltier effect.
Car wireless charging system.
According to claim 1,
The heat dissipation module is
A thermoelectric element in which a heating contact and a heat absorbing contact are disposed to face each other;
The heat absorbing contact is disposed toward the wireless charging module
Car wireless charging system.
7. The method of claim 6,
The heat dissipation module is
When the wireless charging module is shielded comprising a control circuit for applying a voltage to the thermoelectric element
Car wireless charging system.
According to claim 1,
The heat dissipation module is inserted into the dashboard by sliding, or discharged from the dashboard by sliding.
Car wireless charging system.
According to claim 1,
the processor
It is determined whether the wireless charging module is shielded, and when it is determined that the wireless charging module is not shielded, the output of the wireless charging module is controlled as a first reference output, and when it is determined that the wireless charging module is shielded, the wireless charging Controlling the output of the module to a second reference output greater than the first reference output
Car wireless charging system.
According to claim 1,
the processor
Determining whether the wireless charging module is shielded based on the location of the heat dissipation module
Car wireless charging system.
According to claim 1,
It is determined whether the wireless charging module is shielded, and when it is determined that the wireless charging module is shielded, controlling the display unit in the vehicle to be wirelessly connected to the user terminal
Car wireless charging system.
According to claim 1,
the processor
It is determined whether the wireless charging module is shielded, and when it is determined that the wireless charging module is shielded, the in-vehicle display unit controls to display the information of the user terminal
Car wireless charging system.
12. The method of claim 11,
The display unit in the vehicle
At least one of a cluster display, a Center Information Display (CID), a Rear Seat Entertainment (RSE), and a Head Up Display (HUD).
Car wireless charging system.

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