Air purifier and control method thereof
First Claim
1. An air purifier comprising:
- a main body;
a fan mounted in the main body;
cyclones to create a vortex air flow when the fan rotates and to separate dust from air; and
at least one open/close unit to open and close at least one of the cyclones.
1 Assignment
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Accused Products
Abstract
An air purifier and a control method thereof. The air purifier includes a main body having an air inlet and an air outlet, a fan mounted in the main body, rotational speed of which is changed according to a user-desired air flow rate, cyclones disposed in parallel with each other under the fan, at least one open/close unit to open and close at least one of the cyclones. The open/close unit may include a valve member to open and close an outflow pipe of the cyclone, and a stepping motor to rotate the valve member. An anemometer is mounted to at least one of the cyclones. Accordingly, since the air purifier can measure a speed of air flow in the cyclone and correspondingly change the operating number of the dust-collecting cyclones in an open state, the air purifier can achieve a predetermined dust-collecting performance even when the speed of the air flow in the cyclone is reduced.
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Citations
21 Claims
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1. An air purifier comprising:
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a main body; a fan mounted in the main body; cyclones to create a vortex air flow when the fan rotates and to separate dust from air; and at least one open/close unit to open and close at least one of the cyclones. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An air purifier comprising:
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a fan having a variable number of revolutions according to a user-desired air flow rate; cyclones to communicate with the fan; and a control unit to control an open/close state of the cyclones according to the number of revolutions of the fan, the control unit to perform a first mode in which air flow generated by the fan passes through all of the cyclones, and a second mode in which the air flow generated by the fan passes through a portion of the cyclones. - View Dependent Claims (10)
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11. A method of controlling an air purifier including a fan having a number of revolutions per unit time and having cyclones to communicate with the fan, the method comprising:
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receiving a user-desired air flow rate; opening and closing the cyclones according to the user-desired air flow rate; and driving the fan by a predetermined number of revolutions per unit time according to the user-desired air flow rate. - View Dependent Claims (12)
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13. An air purifier comprising:
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a plurality of cyclones to create an air flow to remove a foreign material from the air flow; and an open/close unit to selectively prevent the air flow of at least one of the plurality of cyclones according to a characteristic of the air flow. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification