JP2013099396A5

JP2013099396A5 -

Info

Publication number: JP2013099396A5
Application number: JP2011244132A
Authority: JP
Filing date: 2011-11-08
Publication date: 2013-12-19
Anticipated expiration: 2031-11-08

Claims

A casing having an air outlet and a manual insertion portion;
A blower unit including a blower motor for supplying dry air from the blower opening to the manual insertion unit;
A pair of electrically conductive wires with insulation coating disposed inside the casing adjacent to the hand insertion portion;
Over time becomes the capacitance of each of the conductive wires that varies continuously from detecting section for detecting,
Before SL based on the value of the capacitance of each conductive line, as well as detecting whether the user's hand is inserted into the hand insertion portion, when the user's hand is detected to have been inserted into the hand insertion portion A hand-drying apparatus comprising a control unit that controls the blower unit so as to drive the blower motor.

The hand dryer according to claim 1,
The control unit detects whether or not a user's hand has been inserted into the hand insertion unit based on an average value of the capacitance of each conductive wire, and the user's hand is inserted into the hand insertion unit. A hand-drying device that controls a blower unit so as to drive a blower motor when it is detected.

The hand dryer according to claim 1,
The control unit detects whether or not a user's hand has been inserted into the hand insertion unit according to whether or not the capacitance of each conductive wire has exceeded a predetermined threshold, and the user's hand is inserted into the hand. A hand-drying device that controls a blower unit to drive a blower motor when it is detected that the fan is inserted into the unit.

It is a hand dryer according to any one of claims 1 to 3 ,
Each conductive line consists of a left conductive line and a right conductive line arranged on the left and right with respect to the user,
When the total capacitance of the left conductive line and the right conductive line is greater than a predetermined sum signal threshold (CA _th ), the control unit is configured such that at least one of the left hand and right hand of the user is the left conductive line or the right conductive line. A hand-drying device that detects that the right conductive wire is approached.

The hand dryer according to claim 4 ,
When the absolute value of the difference in capacitance between the left conductive line and the right conductive line is smaller than a predetermined difference signal threshold (CD _th ), the control unit causes the user's left hand and right hand to become the left conductive line and the right conductive line. A hand-drying device that detects that it is approaching.

It is a hand dryer according to any one of claims 1 to 5 ,
When the average value of the capacitance of the left conductive wire and the right conductive wire is higher than a predetermined conductive wire noise threshold (A _th ), the control unit detects that dirt or foreign matter is attached to the casing surface and A hand-drying apparatus characterized by stopping driving of a motor.

The hand dryer according to claim 6 ,
A main body display unit disposed on the casing and connected to the control unit;
The said control part notifies a user that the dirt or the foreign material has adhered to the said casing surface using a main body display part, The hand dryer characterized by the above-mentioned.

The hand dryer according to any one of claims 1 to 7 ,
The left-side conductive wire and the right-side conductive wire extend along the air blowing port and the manual insertion portion.

The hand drying device according to any one of claims 1 to 8 ,
A drainage tank located below the manual insertion part,
A drain conductive plate disposed in the casing adjacent to the drainage tank;
The detection unit continuously detects the capacitance of the drain conductive plate that changes over time,
When the electrostatic capacity of the drain conductive plate exceeds a predetermined threshold value, the control unit detects that the wastewater accumulated in the drainage tank has exceeded a predetermined water level, and stops driving the blower motor. A hand dryer characterized by that.

The hand dryer according to claim 9 ,
A drainage indicator disposed on the casing and connected to the controller;
The control unit notifies the user that the capacitance of the drain conductive plate has exceeded a predetermined threshold by using the drainage display unit.

The hand dryer according to claim 9 ,
The drain conductive plate is disposed along a vertical surface facing the drainage tank.

It is a hand dryer according to any one of claims 1 to 11 ,
The left conductive wire and the right conductive wire are accommodated in a groove provided inside the casing,
The hand-drying device according to claim 1, wherein the casing includes at least one protrusion that assists in accommodating the left conductive wire and the right conductive wire in the groove.

The hand dryer according to any one of claims 1 to 12 ,
The air outlet has first and second air outlets,
The blower motor of the blower unit supplies dry air from the first blower port toward the manual insertion unit, and also supplies dry air along the outer wall of the casing facing the detection unit from the second blower port. A hand-drying device characterized by:

The hand dryer according to any one of claims 1 to 13 ,
The casing has a front projecting portion and a rear projecting portion,
A left conductive wire and a right conductive wire are disposed in the front projecting portion of the casing,
A grounded shield plate is disposed in the rear projecting portion of the casing, and a part of the user's body other than the hand inserted into the hand insertion portion approaches the left conductive wire and the right conductive wire. A hand-drying device that suppresses fluctuations in capacitance of the left conductive wire and the right conductive wire caused by the above.