Electric vacuum cleaner

• US 20070214597A1
• Filed: 03/12/2007
• Published: 09/20/2007
• Est. Priority Date: 03/14/2006
• Status: Abandoned Application

• Current Assignee: Toshiba Tec Corporation (Toshiba Corporation)
• Original Assignee: Toshiba Tec Corporation (Toshiba Corporation)
• Inventors: Suzuki, Hitoshi
• Application Number:
  US11/716,862
• Publication Number:
  US 20070214597A1
• Time in Patent Office: Days
• US Class Current: 15/339
• CPC Class Codes: A47L 9/19 Means for monitoring filtering operation
• CPC Class Codes: A47L 9/2815 using optical detectors
• CPC Class Codes: A47L 9/2842 Suction motors or blowers
• CPC Class Codes: A47L 9/2857 User input or output elements for control, e.g. buttons, switches or displays

Abstract

An electric vacuum cleaner, including: a dust separating section to separate a dust sucked from a suction opening with air; a dust-collecting chamber to collect the dust separated at the dust separating section; a light emitting diode D1 to emit a light into the dust-collecting chamber; a light receiving diode D2 to receive the light through the dust-collecting chamber; a control device 200 to judge an amount of the dust through the suction opening/or judging whether or not the dust collected in the dust-collecting chamber reached to a predetermined amount based on a light receiving condition of the light receiving device; a display unit 17 to display the amount of the dust judged with the judging device and a alarm device 1000 to alarm in response with the judging amount detected by the control device 200.

Claims

1. An electric vacuum cleaner, comprising:

a dust separating section to separate dust sucked from a suction opening with air;

a dust-collecting chamber to accumulate the dust separated at the dust separating section;

an light emitting device to emit a light to the dust-collecting chamber;

a light receiving device to receive the light passing through the dust-collecting chamber;

a judging device to detect an amount of the dust passing through the suction opening/or judge whether or not the dust accumulated in the dust-collecting chamber has reached to a predetermined amount based on a light receiving condition of the light receiving device; and

a display unit to display the amount of the dust detected by the judging device.

2. The electric vacuum cleaner according to claim 1, wherein

the light receiving device includes:

a first light receiving device to detect the amount of the dust passing through the suction opening; and

a second light receiving device to judge whether or not the dust accumulated in the dust-collecting chamber has reached to the predetermined amount,

the first light receiving device being provided at an upstream side than the second light receiving device.

3. The electric vacuum cleaner according to claim 1, wherein

the first light receiving device receives a light reflected by the dust.

4. The electric vacuum cleaner, comprising:

a main body;

a dust-collecting container detachably provided on the main body including;

an electric blower to suck dust from a suction opening;

a dust separating section to separate dust sucked from the suction opening with air;

a dust-collecting chamber to accumulate the dust separated at the dust separating section;

a light emitting device to emit a light to the dust-collecting chamber;

a light receiving device to receive the light through the dust-collecting chamber;

a judging device to judge whether or not the dust accumulated in the dust-collecting chamber has reached to a predetermined amount based on a light receiving condition of the light receiving device;

an alarm device to alarm an alarm in accordance with a detected amount of the dust detected by the judging device.

5. The electric vacuum cleaner according to claim 4, wherein

the alarm device hop ups the dust-collecting device to alarm.

6. The electric vacuum cleaner according to claim 5, wherein

the alarm device carries out the alarm when the amount of the dust accumulated in the dust-collecting chamber is equal to or more than the predetermined amount, or when the electric blower is switched on.

7. The electric vacuum cleaner according to claim 4, wherein

the alarm device carries out the alarm when the amount of the dust accumulated in the dust-collecting chamber is equal to or more than the predetermined amount, or when stops an operation of the electric blower after a predetermined time lapsed.