초록 ▼

A method for controlling an amount of evaporated scented material emitted from an air freshener device include generating a first control signal to induce the motor to rotate fan blades at a first rotational speed during a first time interval which urges air flow toward the aperture of the container

A method for controlling an amount of evaporated scented material emitted from an air freshener device include generating a first control signal to induce the motor to rotate fan blades at a first rotational speed during a first time interval which urges air flow toward the aperture of the container to induce evaporation of the scented material in the container. The method further includes generating additional control signals to induce the motor to increase a rotational speed of the fan blades during a second time interval to increase air flow toward the aperture of the container, the second time interval being after the first time interval, such that first and second mass rates of evaporated scented material from the container during the first and second time intervals, respectively, are maintained within a predetermined mass rate range.

대표청구항 ▼

What is claimed is: 1. A method for controlling an amount of evaporated scented material emitted from an air freshener device, the air freshener device having a container, a motor, and fan blades coupled to the motor, the container having an aperture and holding a scented material therein, the meth

What is claimed is: 1. A method for controlling an amount of evaporated scented material emitted from an air freshener device, the air freshener device having a container, a motor, and fan blades coupled to the motor, the container having an aperture and holding a scented material therein, the method comprising: generating a first control signal to induce the motor to rotate the fan blades at a first rotational speed during a first time interval which urges air flow toward the aperture of the container to induce evaporation of the scented material in the container; and generating additional control signals to induce the motor to increase a rotational speed of the fan blades during a second time interval to increase air flow toward the aperture of the container, the second time interval being after the first time interval, such that first and second mass rates of evaporated scented material from the container during the first and second time intervals, respectively, are maintained within a predetermined mass rate range. 2. The method of claim 1, wherein the scented material is at least one of a scented gel, a scented liquid, a scented solid material, and a scented semi-solid material. 3. The method of claim 1, wherein the generating additional control signals to induce the motor to increase the rotational speed of the fan blades comprises generating additional control signals to induce the motor to non-linearly increase the rotational speed of the fan blades. 4. The method of claim 1, wherein: the generating a first control signal comprises generating a first control signal to induce the motor to rotate the fan blades at a first constant rotational speed during a first time interval; and the generating additional control signals comprises generating a second control signal to induce the motor to rotate the fan blades at a second constant rotational speed during a second time interval, the second constant rotational speed being greater than the first constant rotational speed, and the second time interval being contiguous with and subsequent to the first time interval. 5. The method of claim 4, wherein: the generating additional control signals comprises generating a third control signal to induce the motor to rotate the fan blades at a third constant rotational speed during a third time interval, the third constant rotational speed being greater than the second constant rotational speed, and the third time interval being contiguous with and subsequent to the second time interval. 6. The method of claim 5, wherein: the first control signal results in a first constant voltage being applied to the motor; and the second control signal results in a second constant voltage being applied to the motor, the second constant voltage being greater than the first constant voltage. 7. The method of claim 6, wherein: the third control signal results in a third constant voltage being applied to the motor, the third constant voltage being greater than the second constant voltage. 8. An air freshener device, comprising: a container holding scented material therein, the container having an aperture; a motor coupled to fan blades, the motor configured to rotate the fan blades; and a controller operably coupled to the motor, the controller configured to generate a first control signal to induce the motor to rotate the fan blades at a first rotational speed during a first time interval which urges air flow toward the aperture of the container to induce evaporation of the scented material in the container, the controller further configured to generate additional control signals to induce the motor to increase a rotational speed of the fan blades during a second time interval to increase air flow toward the aperture of the container, the second time interval being after the first time interval, such that first and second mass rates of evaporated scented material from the container during the first and second time intervals, respectively, are maintained within a predetermined mass rate range. 9. The air freshener device of claim 8, wherein the scented material is at least one of a scented gel, a scented liquid, a scented solid material, and a scented semi-solid material. 10. The air freshener device of claim 8, wherein the controller configured to generate additional control signals to induce the motor to increase the rotational speed of the fan blades comprises the controller configured to generate the additional control signals to non-linearly increase the rotational speed of the fan blades. 11. The air freshener of claim 8, wherein: the first control signal comprises a first control signal to induce the motor to rotate the fan blades at a first constant rotational speed during a first time interval; and the control signals comprises a second control signal to induce the motor to rotate the fan blades at a second constant rotational speed during a second time interval, the second constant rotational speed being greater than the first constant rotational speed, and the second time interval being contiguous with and subsequent to the first time interval. 12. The air freshener of claim 11, wherein: the additional control signals comprises a third control signal to induce the motor to rotate the fan blades at a third constant rotational speed during a third time interval, the third constant rotational speed being greater than the second constant rotational speed, and the third time interval being contiguous with and subsequent to the second time interval. 13. The air freshener of claim 12, wherein: the first control signal results in a first constant voltage being applied to the motor; and the second control signal results in a second constant voltage being applied to the motor, the second constant voltage being greater than the first constant voltage. 14. The air freshener of claim 13, wherein: the third control signal results in a third constant voltage being applied to the motor, the third constant voltage being greater than the second constant voltage.