Last month the US Patent & Trademark Office published a patent application from Samsung relating to a wireless charging device for vehicles.
Samsung's patent description states that a wireless charging device can convert electric energy in an electromagnetic wave form, to wirelessly forward power to an external device without a transmission line. A wireless charging scheme can be various such as a magnetic induction scheme, a self-resonance scheme or the like.
At wireless charging, a heat can be generated due to efficiency deterioration, because arrangement alignment is not made between internal parts of the wireless charging device. The heat generated in the wireless charging device can be cooled in an air forced convection scheme using a fan.
In a cooling of a forced convection scheme using a fan of a wireless charging device, there can be limits in a cooling efficiency, because a channel of air introduced into the wireless charging device is restrictive. In response to the cooling of the wireless charging device not being made smoothly, it can bring about limitation in a usability.
Various embodiments of the present invention may provide a wireless charging device capable of decreasing heat generation that occurs at wireless charging.
Also, various embodiments of the present disclosure may provide a wireless charging device capable of improving the cooling efficiency. In patent FIG. 1A below we're able to see a perspective view of Samsung's wireless charging device.
Samsung's patent FIG. 1B below illustrates a perspective view of a wireless charging device; FIG. 1D illustrates an example view showing a state in which an external device is mounted in a wireless charging device.
Further, as shown in FIG. 1B above, the support unit #111 may form a rear surface of the wireless charging device #100. The support unit may get in contact with an installation surface that is to install the wireless charging device. The support unit may include injection materials, metals or the like that form an appearance design of the wireless charging device.
A surface of the support unit may be flat to be fixed to the installation surface. In response to the wireless charging device being installed in a vehicle, wireless charging may be smoothly performed for the external device through the support unit in spite of the occurrence of vibration or shaking during vehicle running.
Samsung's patent FIG. 1E below illustrates an example view showing a state in which an external device is mounted in a wireless charging device; FIG. 1F illustrates an example view showing a state in which an external device is mounted in a wireless charging device.
In patent FIG. 2A below we're able to see the fan #213 that may be arranged between the coil unit #207 and the printed board assembly #215. The fan may be configured to rotate and make a flow of air between the coil unit and the printed board assembly. The fan may generate the circulation of air. For example, the fan may be an airflow fan to keep the wireless charging device run cooler and more efficiently.
Samsung's patent application was published by the U.S. Patent and Trademark Office in July. The patent was originally filed for in the U.S. in February 2019.
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