Dust inflow sensing unit and robot cleaner having the same
First Claim
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1. A robot cleaner comprising:
- a main body;
a drive unit to drive the main body;
a brush drum unit provided on the main body to form a dust inflow channel; and
a dust inflow sensing unit to sense dust flowing into the main body through the dust inflow channel of the brush drum unit,wherein the dust inflow sensing unit includes a light emitting part having a transmission region to emit a beam, and a light receiving part having a reception region to overlap the transmission region and the reception region is restricted to a designated range.
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Abstract
A dust inflow sensing unit and a robot cleaner having the same. The dust inflow sensing unit includes a light emitting element to emit a beam having a transmission region, a light receiving element having a reception region overlapping the transmission region of the light emitting element, and a guide member to restrict the reception region of the light receiving element to a designated range until the reception region reaches the light emitting element.
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Citations
18 Claims
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1. A robot cleaner comprising:
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a main body; a drive unit to drive the main body; a brush drum unit provided on the main body to form a dust inflow channel; and a dust inflow sensing unit to sense dust flowing into the main body through the dust inflow channel of the brush drum unit, wherein the dust inflow sensing unit includes a light emitting part having a transmission region to emit a beam, and a light receiving part having a reception region to overlap the transmission region and the reception region is restricted to a designated range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A dust inflow sensing unit to sense dust flowing into a cleaner, comprising:
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a light emitting element having a transmission region to emit a beam; a light receiving element having a reception region to overlap the transmission region of the light emitting element; and a light receiving guide member to restrict the reception region of the light receiving element to a designated range until the reception region reaches the light emitting element. - View Dependent Claims (17)
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18. A dust inflow sensing unit to sense dust flowing into a cleaner, comprising:
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a light emitting element having a transmission region to emit a beam; a light receiving element having a reception region to overlap the transmission region of the light emitting element; and a light emitting guide member to restrict the transmission region of the light emitting element to a designated range until the transmission region reaches the light receiving element.
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Specification