Bladeless Ceiling Fan

The present disclosure relates to a field of fans, and in particular to a bladeless ceiling fan.

Ceiling fans are commonly used cooling devices. The blades of ceiling fans are exposed, making them susceptible to dust accumulation. When ceiling fans are turned on, the dust on the blades can be blown into the air and pollutes the environment. Bladeless fans eliminate the issue of dust accumulation on the blades. Bladeless fans are not actually bladeless. There is actually a propeller with blades concealed in the base of the fan. Bladeless fans are “bladeless” because users can't see the blades. However, traditional bladeless fans have limitations in adjusting the airflow direction.

According to various embodiments of the present disclosure, a bladeless ceiling fan is provided.

A bladeless ceiling fan, comprising:

In an embodiment, wherein the flow-diverting mechanism comprises an airflow guiding assembly and an airflow controlling assembly;

In an embodiment, wherein the first guiding component comprises a plurality of evenly distributed first guiding plates; adjacent first guiding plates form a first airflow passage; the first airflow passage has a curved shape to reduce air resistance; and/or

In an embodiment, wherein the first controlling component and the second controlling component are circular in shape; the first controlling component is rotatable.

In an embodiment, wherein the airflow controlling assembly further comprises a controlling motor; the first controlling component is driven by the controlling motor to move relative to the second controlling component; the second controlling component is fixed on the second guiding component.

In an embodiment, wherein the second controlling component comprises a first baffle corresponding to the first opening and a second baffle corresponding to the second opening.

In an embodiment, wherein the housing comprises a first shell, a middle shell and a second shell, wherein the first shell, the middle shell, and the second shell are connected in sequence; the first guiding component is fixed on the first shell; the curved airflow guiding structure is a curved surface of the middle shell; the second shell is provided with an air inlet.

In an embodiment, further comprising an air filter, the air filter is fixed in a center of the second shell.

In an embodiment, further comprising sensors to monitor pollutants and allergens.

In an embodiment, further comprising a communication chip for remote control of the fan motor and the airflow controlling assembly to adjust speed and airflow direction.

Details of one or more embodiments of the present disclosure will be given in the following description and attached drawings. Other features, objects and advantages of the present disclosure will become apparent from the description, drawings, and claims.

In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present disclosure are shown in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thorough and comprehensive.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The definitions are provided to aid in describing particular embodiments, and are not intended to limit the claimed invention. The term “and/or” used herein includes any and all combinations of one or more related listed items.

Referring to, a bladeless ceiling fanis provided in the embodiments of this application. Referring to, the bladeless ceiling fancomprises an airflow generating assembly, a flow-diverting mechanism and a housing. The airflow generating assemblyand the flow-diverting mechanism are disposed within the housing. Referring to, the airflow generating assemblycomprising a bladeand a fan motordriving the bladeto generate airflow. In an embodiment, the flow-diverting mechanism can comprise an airflow guiding assemblyand an airflow controlling assembly.

The housingis formed with a first circular ventand a second circular vent, wherein a curved airflow guiding structureis arranged between the first circular ventand the second circular vent. The flow-diverting mechanism is configured to distribute an airflow generated by the bladeto the first circular ventand the second circular vent, and to control airflow volume entering the first circular ventand the second circular vent, respectively.

Due to the curved airflow guiding structurebetween the first circular ventand the second circular vent, the Coanda Effect can be generated, resulting in airflow redirection and attachment to the curved surface. Air from the first circular ventand the second circular ventflows along exterior curvature to converge into joint directional airflow. The flow-diverting mechanism can independently regulate the airflow volume entering the first guiding componentand the second guiding component, thereby controlling the airflow output from the first circular ventand the second circular vent, and consequently adjusting the final airflow direction.

In an embodiment, the airflow guiding assemblysurrounds the blade. The airflow guiding assemblycomprises a first guiding componentand a second guiding component. The first circular ventis arranged at the edge of the first guiding component. The second circular ventis arranged at the edge of the second guiding component. Referring to, in some embodiments, the first guiding componentcan comprise a plurality of evenly distributed first guiding plates. Adjacent first guiding platesform a first airflow passage. The first airflow passagehas a curved shape to reduce air resistance. In some embodiments, the second guiding componentcan comprise a plurality of evenly distributed second guiding plates. Adjacent second guiding platesform a second airflow passage. The second airflow passagehas a curved shape to reduce air resistance.

Referring to, the airflow controlling assemblysurrounding the blade. The airflow controlling assemblycomprises a first controlling componentand a second controlling component, the first controlling componentis provided with a first openingand a second opening. Wherein, the first controlling componentand the second controlling componentare configured to move relative to each other to open or close the first openingand the second opening. The first openingis in communication with the bladeand the first guiding component, allowing the airflow from the bladeto pass through the first guiding component. The second openingis in communication with the bladeand the second guiding component, allowing the airflow from the bladeto pass through the second guiding component.

In some embodiments, the first controlling componentand the second controlling componentcan be circular in shape. In one embodiment, the first controlling componentis rotatable. In other embodiments, the second controlling componentcan be rotatable. In some embodiments, the airflow controlling assemblycan further comprise a controlling motor. The first controlling componentis driven by the controlling motorto move relative to the second controlling component. The second controlling componentis fixed on the second guiding component. Further, in an embodiment, the second controlling componentcan comprise a first bafflecorresponding to the first openingand a second bafflecorresponding to the second opening.

Referring to, the housingaccommodating the airflow generating assembly, the airflow guiding assemblyand the airflow controlling assembly. The housingcomprises a curved airflow guiding structurebetween the first circular ventand the second circular vent. In an embodiment, the housingcomprises a first shell, a middle shelland a second shell, wherein the first shell, the middle shell, and the second shellare connected in sequence. The first guiding componentis fixed on the first shell. The curved airflow guiding structureis a curved surface of the middle shell. The second shellis provided with an air inlet.

Due to the curved airflow guiding structurebetween the first circular ventand the second circular vent, the Coanda Effect can be generated, resulting in airflow redirection and attachment to the curved surface. Air from the first circular ventand the second circular ventflows along exterior curvature to converge into joint directional airflow. The airflow controlling assemblycan independently regulate the airflow volume entering the first guiding componentand the second guiding component, thereby controlling the airflow output from the first circular ventand the second circular vent, and consequently adjusting the final airflow direction. In one embodiment, airflow directions of the first circular ventand the second circular ventare perpendicular to each other. The airflow direction of the first circular ventcan be downward, and the airflow direction of the second circular can be horizontal.

Referring to, when there is airflow only from the first circular ventand the second circular ventdoes not emit or emits a minimal amount of airflow, the direction of outlet airflow is downward, which is in a direct airflow mode. Referring to, when there is airflow from the second circular ventand the first circular ventdoes not emit or emits a minimal amount of airflow, the direction of outlet airflow is distributed around, which is in a circulating airflow mode. Referring to, when the amounts of airflow from first circular ventand second circular ventare similar or nearly equal, the direction of outlet airflow is at a 45° angle. By controlling the airflow from the first circular ventand the second circular vent, the bladeless ceiling fancan direct the airflow towards any desired angle. Furthermore, the bladeless ceiling fancan continuously emit airflow without interruption while adjusting the direction of outlet airflow.

In some embodiments, the bladeless ceiling fanalso can be used to purify indoor air. Referring to, the bladeless ceiling fancan further comprise an air filter. The air filtercan be fixed in the center of the second shell. In an embodiment, the air filtercan be a HEPA filter. In one embodiment, the bladeless ceiling fancan further comprise sensorsto monitor pollutants and allergens.

In some embodiments, the bladeless ceiling fanalso can be a smart home device. The bladeless ceiling fancan further comprise a communication chip for remote control of the fan motorand the airflow controlling assemblyto adjust speed and airflow direction. Combined with AI-controlled airflow velocity variation from air vents, the bladeless ceiling fancan achieve a seamless air-sweeping effect throughout the entire airflow ring. This results in efficient and optimal circulation of indoor air and distribution of thermal energy.

The bladeless ceiling fancan be equipped for smart home and IoT. It is a hub that communicates with air-conditioners, analyses and intelligently adapts to indoor environmental data. By utilizing machine learning, the bladeless ceiling fancan create thermal comfort profile. Integrated AI algorithm collectively controls airflow speed, direction and air-conditioners through infrared, radiofrequency, wi-fi and Bluetooth to achieve the desired temperature and humidity at optimal human thermal comfort level while reducing energy consumption by up to 20%, allowing users full control of their environment anytime, anywhere.

The technical features in the foregoing embodiments may be randomly combined. For concise description, not all possible combinations of the technical features in the embodiment are described. However, provided that combinations of the technical features do not conflict with each other, the combinations of the technical features are considered as falling within the scope recorded in this specification.

The foregoing embodiments only describe several implementations of the disclosure, which are described specifically and in detail, and therefore cannot be construed as a limitation to the patent scope of the disclosure. It should be noted that, a person of ordinary skill in the art may further make variations and improvements without departing from the ideas of the disclosure, which all fall within the protection scope of the disclosure. Therefore, the protection scope of the disclosure is subject to the protection scope of the appended claims.