Electronic device

An electronic device includes a casing, a fan base, a fan side wall and an impeller. The casing has a fan top wall. The fan top wall has an airflow inlet. The fan base is provided in the casing. The fan side wall extends from the casing or the fan base. The fan top wall, the fan base and the fan side wall define a fan space communicated with the airflow inlet and a first airflow outlet communicated with the fan space. The impeller is mounted at the fan base and is located in the fan space.

BACKGROUND

Field of the Disclosure

The disclosure relates to an electronic device, and particularly relates to an electronic device with a fan.

Description of Related Art

Fan modules are often applied as airflow supply components as a means for active heat dissipation. The components of the conventional fan module are typically made of metal or plastic materials. When the conventional fan module is directly mounted in an electronic product, the size (for example, thickness) of the casing of the electronic product is usually increased. In addition, when the conventional fan module is applied to an electronic product with an antenna module, if the fan module and the antenna module are too close to each other, the metal component of the fan module will affect the performance of the antenna module. In order to maintain the performance of the antenna module, the fan module needs to be configured far away from the antenna module, thus increasing the size of the electronic product in appearance.

SUMMARY OF THE DISCLOSURE

The disclosure provides an electronic device which provides good self heat dissipation performance and has a smaller size in appearance.

An electronic device of the disclosure includes a casing, a fan base, a fan side wall and an impeller. The casing has a fan top wall. The fan top wall has an airflow inlet. The fan base is provided in the casing. The fan side wall extends from the casing or the fan base. The fan top wall, the fan base and the fan side wall define a fan space communicated with the airflow inlet and a first airflow outlet communicated with the fan space. The impeller is mounted at the fan base and is located in the fan space.

Based on the above, in the disclosure, the casing has a fan top wall (that is, the fan top wall is directly formed by a part of the casing), and the fan side wall extends from the casing or the fan base (that is, the fan side wall is directly formed by a part of the casing or a part of the fan base). Therefore, some components of the fan module can be formed by using the components of the electronic device itself, which helps to reduce the size of the electronic device in appearance.

DESCRIPTION OF EMBODIMENTS

Please refer toFIG. 1toFIG. 5. In this embodiment, the electronic device100is, for example, a network router, a smart phone, a tablet PC or a notebook computer etc. The electronic device100includes a casing110, a fan base120, a fan side wall130and an impeller140. The casing110has a fan top wall110a. The fan top wall110ahas an airflow inlet AI. The fan base120is provided in the casing110. The fan side wall130may directly extend from the casing110, which means that the fan side wall130can be integrally formed with the casing110. In another embodiment, the fan side wall130may directly extend from the fan base120, which means that the fan side wall130and the fan base120may be formed integrally.

Please refer toFIG. 1toFIG. 5, in this embodiment, the fan top wall110a, the fan base120, and the fan side wall130define a fan space FS communicating with the airflow inlet AI and a first airflow outlet AO1communicating with the fan space FS. The impeller140is mounted at the fan base120and is located in the fan space FS.

Please refer toFIG. 1toFIG. 5. In this embodiment, the casing110may include an upper casing112and a lower casing114connected to the upper casing112. The fan side wall130extends from the upper casing112. Specifically, the upper casing112may include an upper bezel112a, a part of the upper bezel112amay constitute the fan top wall110a, and the fan side wall130may extend from the upper bezel112a. The upper casing112may further include an upper cover112bmounted at the upper bezel112a, and the fan side wall130may extend from the upper bezel112a. The upper bezel112amay have an airflow inlet AI, the upper cover112bmay have a plurality of openings112b-1, and these openings112b-1may communicate with the airflow inlet AI. The impeller140can introduce the air outside the casing110into the fan space FS through these openings112b-1and the airflow inlet AI, and drive the airflow to be outputted through the first airflow outlet AO1. A part of the upper bezel112a(that is, a part of the casing110), the fan base120, the fan side wall130and the impeller140can form a fan. Compared with directly disposing an independent and complete conventional fan module in the electronic device100and increase the overall thickness of the electronic device100, the overall thickness of the electronic device100of this embodiment can be reduced.

Please refer toFIG. 2toFIG. 5. In this embodiment, the lower casing114may include a lower bezel114aand a lower cover114bmounted on the lower bezel114a.

Please refer toFIG. 1toFIG. 3, in this embodiment, the upper cover112bmay further have a plurality of openings112b-2to allow the airflow in the casing110to be discharged. As shown inFIG. 1, these openings112b-1are located in the intake region I, and these openings112b-2are located in the discharge region O. The intake region I and the discharge region O are separated by the partition wall112b-3inFIG. 3.

Please refer toFIG. 2toFIG. 5, in this embodiment, the material of the fan base120may be metal to improve heat dissipation efficiency. In addition, a part of the fan base120that extends beyond the fan side wall130may serve as a heat dissipation component to improve heat dissipation efficiency.

Please refer toFIG. 2toFIG. 5, in this embodiment, the fan top wall110a, the fan base120, and the fan side wall130may further define a second airflow outlet AO2communicating with the fan space FS, as shown inFIG. 4. The second airflow outlet AO2is adjacent to the part of the fan base120that extends beyond the fan side wall130to improve heat dissipation efficiency.

Please refer toFIG. 2andFIG. 3, in this embodiment, the electronic device100may further include a motherboard150and a battery160. The motherboard150is arranged in the casing110to control other components. The battery160is disposed in the casing110(for example, between the lower bezel114aand the lower cover114bof the lower casing114) to supply power.

Please refer toFIG. 4, in this embodiment, the electronic device100may further include one or more antenna modules170, such as mmWave modules. The antenna module170is disposed in the casing110and has an antenna clearance region170a. A part of the fan side wall130may be located in the antenna clearance region170a. For example, the material of the fan side wall130may be a material that has a small effect on the performance of the antenna module. For example, the material of the fan side wall130can be plastic or other non-metal materials, so that the fan side wall130can be located in the antenna clearance region170a, and has decreased effect on the performance of the antenna module170. In this manner, the size of such an electronic device100can be smaller.

In another embodiment, the plastic part or non-metal material part of the fan side wall130may be located in the antenna clearance region170a, while the metal part of the fan side wall130is not located in the antenna clearance region170a. In another embodiment, the plastic part or the non-metal material part of the fan base120may be located in the antenna clearance region170a, while the metal part of the fan base120is not located in the antenna clearance region170a.

Please refer toFIG. 6, in another embodiment, the fan side wall130can directly extend from the upper cover112b, which means that the fan side wall130can be integrally formed with the upper cover112b. The fan top wall110amay be formed by a part of the upper cover112b. The fan top wall110amay have multiple airflow inlets AI.

Please refer toFIG. 7, in another embodiment, the fan side wall130may directly extend from the fan base120, which means that the fan side wall130and the fan base120may be formed integrally. The fan top wall110amay be formed by a part of the fan side wall130.

In summary, in the disclosure, the casing has a fan top wall (that is, the fan top wall is directly formed by a part of the casing), and the fan side wall extends from the casing or the fan base (the fan side wall is directly formed by a part of the casing or a part of the fan base). Therefore, some components of the fan module can be formed by the components of the electronic device itself, which helps to reduce the size of the electronic device in appearance.