JP4985269B2 - Hand dryer - Google Patents

Description

  The present invention relates to a hand drying device that dries a wet hand after washing a hand in a washroom or a toilet.

  As a device for drying a wet hand after washing, a hand drying device is known which blows off water droplets attached to the hand by a high-speed air flow and dries the hand (see, for example, Patent Document 1).

  Hereinafter, the hand dryer will be described with reference to FIG.

  As shown in the figure, the main body case 101 forms an exterior by a front case 101A that covers the front surface, the top surface, and both side surfaces, and a rear case 101B that covers the wall surface side. Inside the main body case 101, there are provided a blower means 102, a blowout nozzle 103 that communicates with the blower means 102 and blows out blown air, and a control means 104 that controls electrical components. The blowing means 102 includes a fan motor 102A that generates blown air and a blowing case 102B. A heat generation means 105 is provided in the air passage in the blowout nozzle 103 to make the blown air warm. On the lower surface of the main body case 101, there are provided a blower outlet of the blowout nozzle 103, a suction port 106 that takes in the blown air into the main body case 101, and a filter 107 that removes dust of the blown air sucked from the suction port 106. Yes.

International Publication No. 02/028250 (Page 11, Fig. 1)

  In such a conventional hand dryer, there is a problem that if the fan motor continues to rotate excessively, the fan motor may generate heat and operate abnormally.

  The present invention solves such a conventional problem, and provides a hand dryer that has a simple configuration and prevents the fan motor from rotating excessively and preventing the fan motor from generating heat and operating abnormally. The purpose is to do.

In order to achieve the above object, the hand drying device of the present invention includes a drying chamber in which a hand can be inserted and removed from an insertion opening that opens toward the outside, and a nozzle that sends out air toward a water receiving portion at the bottom of the drying chamber. and parts, and a fan for sending air from the nozzle unit, and a motor coupled to the fan, a hand dryer with a fan outer frame and the motor outer frame constituting the outer frame of the said fan motor ,
The thermal protector that is connected to the motor by two or more lead wires and interrupts energization to the motor when a certain temperature is reached, and a cover that holds the thermal protector. The cover includes the thermal protector. In the held state, the thermal protector
The side is fixed to the outer frame of the motor with the side being the outer frame side of the motor .

  Another means is that the thermal protector is provided with two lead wires in a V shape at one end and inserted into the bag portion with the opposite lead wire side in the back, and the cover includes the bag A protrusion to be inserted into the portion is provided to hold the thermal protector.

  Another means is to provide an opening in the outer shell of the motor and fix the cover through the opening.

  Another means is to fix the cover to the motor outer frame by binding.

  Another means is to fix the cover to the motor outer frame by screwing in a coupling hole for coupling the fan outer frame and the motor outer frame.

The other means is provided with a heater for warming the air blown from the fan, and the heater is attached at a position facing the thermal protector with the motor interposed therebetween .

According to the present invention, a drying chamber in which a hand can be inserted / removed from an insertion port opened toward the outside, a nozzle portion for sending air toward a water receiving portion at the bottom of the drying chamber, and air is sent from the nozzle portion fan and a motor coupled to the fan, a hand dryer with a fan outer frame and the motor outer frame constituting the outer frame of the said fan motor, said motor and two or more leads to And a thermal protector that cuts off the power to the motor when a certain temperature is reached, and a cover that holds the thermal protector. by fixed to the outer frame of the motor in the outer frame side of the motor, the thermal protector detects the heat generation of the motor, the motor is rotated abnormally It becomes a time, since the cut off power supply to the motor, it is possible to provide a hand dryer which is effective in that it is possible to prevent abnormal rotation due to the heat generation by the motor.

Further, M o can be securely fixed to the motor outside frame, it is possible to provide a hand dryer which is effective that it is possible to detect the heat generation of the motor.

Further, it is possible to provide a hand dryer which is effective in that it can be held in a thermal protector simple configuration cover.

The side block diagram which shows the whole hand dryer of Embodiment 1 of this invention The perspective view which shows the state which attached the thermal protector of the same hand dryer to the motor outer frame Enlarged front view showing the state of the cover that holds the thermal protector of the hand dryer An enlarged view showing a state in which the thermal protector of the hand dryer is attached to the opening of the motor. The perspective view which shows the state which fixed the thermal protector of the hand dryer to the motor by the binding Upper configuration diagram showing the state of the hand dryer An enlarged view showing a state in which the thermal protector of the hand dryer is attached to the opening of the motor. The perspective view which shows the state which attached the thermal protector of the hand dryer of Embodiment 2 of this invention to the motor outer frame with the screw | thread. Top view showing the thermal protector of the same hand dryer attached to the motor outer frame with screws Side configuration diagram showing the entire conventional hand dryer

The hand drying device according to claim 1 of the present invention is a drying chamber in which a hand can be inserted and removed from an insertion port opened toward the outside, a nozzle portion for sending air toward a water receiving portion at the bottom of the drying chamber, a fan for sending air from the nozzle unit, and a motor coupled to the fan, a hand dryer with a fan outer frame and the motor outer frame constituting the outer frame of the said fan motor, said motor And a thermal protector that cuts off power to the motor when a certain temperature is reached, and a cover that holds the thermal protector. The cover holds the thermal protector. state, and the by the thermal protector side to the outer frame side of the motor that is fixed to the outer frame of the motor, the motor thermal protector is transmitted from the motor Detects the temperature of the frame, when turned to a certain temperature, it has the effect of interrupting the power supply to the motor.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1 and FIG. 2, a drying chamber 1 in which a hand can be inserted and removed from an insertion opening that opens toward the outside, a nozzle portion 3 that sends out air toward a water receiving portion 2 at the bottom of the drying chamber 1, A fan 4 for sending air from the nozzle unit 3, a motor 5 coupled to the fan 4, a fan outer frame 6 and a motor outer frame 7 that constitute an outer frame of the fan 4 and the motor 5, a nozzle unit 3 and the fan 4, A heater 8 is provided between them, and an intake port 9 for sending air to the fan 4 is provided. The motor outer frame 7 is provided with a thermal protector 11 that is connected to the motor 5 by two or more lead wires 10 and cuts off the power supply to the motor 5 when a certain temperature is reached.

  With the above configuration, heat is generated by the rotation of the motor 5, and the heat is transmitted to the space between the motor 5 and the motor outer frame 7 to heat the motor outer frame 7, and the temperature of the motor outer frame 7 is set by the thermal protector 11. When it is detected and reaches a certain temperature, the power supply to the motor 5 is cut off.

  Therefore, when the thermal protector 11 detects the heat generation of the motor 5 and the motor 5 rotates abnormally and reaches a temperature that generates heat, the motor 5 is deenergized, so that abnormal rotation due to heat generation of the motor 5 can be prevented. .

As shown in FIGS. 2 and 3, a cover 12 that holds the thermal protector 11 is provided, the thermal protector 11 is held by the cover 12, and is fixed to the motor outer frame 7 in the held state. That is, a bag portion 14 is provided on the motor outer frame 7 side of the cover 12 so as to cover the thermal protector 11, and the V lead of the thermal protector 11 is formed so that the two lead wires 10 come out in a V shape from the thermal protector 11. The protrusion 13 of the cover 12 is inserted at the intersection of the shape and fixed to the motor outer frame 7.

  With the above configuration, the thermal protector 11 is held by the cover 12 and fixed to the motor outer frame 7, that is, inserted into the protrusion 13 of the cover 12 and fixed to the bag portion 14 of the thermal protector 11.

Therefore, since the thermal protector 11 is held by the cover 12 with the motor outer frame 7, the thermal protector 11 can be securely fixed to the motor outer frame 7, the heat generation of the motor 5 can be detected, and the thermal protector can be detected. The thermal protector 11 can be held on the cover 12 with a simple configuration by providing the bag portion 14 on the cover 11 and the protrusion 13 on the cover 12.

  The cover 12 for fixing the thermal protector 11 is made of a heat-resistant resin such as PBT, so that the cover 12 is deformed due to heat generated from the motor 5 itself and heat generated from the motor outer frame 7 transmitted from the heat generated by the motor 5. Can be prevented.

  Further, if the cover 12 is made of metal, it is possible to prevent the cover 12 from being deformed by the heat generated from the motor 5 itself and the heat generated by the motor outer frame 7 transmitted from the motor 5, and a large-sized resin for molding the resin. Since a mold is not necessary, as a result, the processing cost can be reduced.

  With the above configuration, the heat generated from the motor 5 itself and the heat generated from the motor outer frame 7 transmitted from the heat generated by the motor 5 are transmitted to the cover 12 made of heat-resistant resin or the cover 12 made of metal.

  Therefore, when the cover 12 is made of a heat-resistant resin, the cover 12 can be prevented from being deformed due to heat generation of the motor 5, and when the cover 12 is made of metal, the cover due to heat generation of the motor 5 is prevented. The deformation of 12 can be prevented, and the processing cost can be reduced.

  As shown in FIG. 4, the motor outer frame 7 is provided with an opening 15, and the cover 12 is also provided with a fan-side protrusion 16 and a motor-side protrusion 17 that are protruded to the fan 4 side and the opposite position. Then, the motor side protrusion 17 is inserted into the opening 15, the fan side protrusion 16 is brought into contact with the fan outer frame 6, and the cover 12 is fixed.

  With the above configuration, the cover 12 is fixed in the vicinity of the opening 15.

  Therefore, the opening 15 can be easily and securely fixed at the end of the cover 12, and the temperature of the motor 5 itself can also be detected from the temperature of the opening 15. Therefore, the heat generation of the motor 5 can be detected more accurately. can do.

  Further, as shown in FIG. 5, one end of the cover 12 on the fan outer protrusion 16 side is tied and fixed to the outer periphery of the motor outer frame 7 with a heat-resistant resin binding 18.

  With the above configuration, the cover 12 is fixed to the motor outer frame 7 by the bind 18.

  Therefore, the thermal protector 11 can be easily fixed to the motor outer frame 7.

  Further, as shown in FIG. 6, the cover 12 is fixed to the motor outer frame 7 at a position facing the place where the heater 8 is installed. In order to dry the wet hand in a short time, a heating means such as the heater 8 is provided. However, when the installation position of the heater 8 as the heating means and the position of the thermal protector 11 that detects the temperature of the motor 5 are close, The thermal protector 11 that should detect the temperature of the motor 5 may erroneously detect the temperature of the heater 8. Therefore, as long as it faces the heater 8, it is possible to accurately detect the heat generation of only the motor 5 without detecting the temperature of the heater 8 by attaching it at a position far from the heater 8.

With the above configuration, the cover 12 is attached to the motor outer frame 7 at a position facing the heater 8.

  Therefore, the thermal protector 11 can detect the heat generation of only the motor 5 without detecting the temperature of the heater 8.

  Further, as shown in FIG. 7, at least one lead wire 10a of the two lead wires 10 is provided on the opening 15 side.

  With the above configuration, at least one lead 10a line is provided on the opening 15 side and connected to the motor 5.

  Therefore, it is possible to prevent the lead wire 10a on the opening 15 side connected to the motor 5 from the cover 12 from coming into contact with the edge portion of the motor outer frame 7 and from being damaged by coming into contact with the motor outer frame 7.

  At this time, it is desirable that the end surface of the cover 12 holding the thermal protector 11 is also subjected to edge processing or rounding.

(Embodiment 2)
8 and 9, the difference from the first embodiment is that the cover 12 is fixed to the motor outer frame 7 by fixing with a screw 20 in the coupling hole 19 that couples the fan outer frame 6 and the motor outer frame 7. However, the cover 12 is fixed to the motor outer frame 7 with a screw 20 and fixed to the coupling hole 19 that couples the fan outer frame 6 and the motor outer frame 7. 8 and 9, the same components as those in FIG. 5 are denoted by the same reference numerals, and the description thereof is omitted.

  With the above-described configuration, the cover 12 is fixed to the motor outer frame 7 with screws 20 of the coupling holes 19 that couple the fan outer frame 6 and the motor outer frame 7.

  Therefore, it is not necessary to newly provide a binding hole by serving as the coupling hole 19 and the screw 20, and the cover 12 can be firmly fixed to the motor outer frame 7.

  The hand dryer of the present invention is installed in a washroom or a toilet such as a restaurant or a hotel, and is also useful in a hospital operating room or kitchen.

1. ・ Drying chamber 2 ・ ・ Water receiving part 3 ・ ・ Nozzle part 4 ・ ・ Fan 5 ・ ・ Motor 6 ・ ・ Fan outer frame 7 ・ ・ Motor outer frame 8 ・ ・ Heater 9 ・ ・ Inlet 10 ・ ・ Lead wire 11 .. Thermal protector 12 .... Cover 13 .... Projection 14 ... Bag 15 ... Opening 18 ... Bind 19 ... Connection hole 20 ... Screw

Claims (6)

A drying chamber in which a hand can be inserted and removed from an insertion opening that opens toward the outside;
A nozzle portion for sending air toward the water receiving portion at the bottom of the drying chamber;
A fan for sending air from the nozzle part;
A motor coupled to the fan;
A hand dryer comprising a fan outer frame and the motor outer frame constituting the outer frame of the said fan motor,
A thermal protector that is connected to the motor by two or more lead wires and cuts off the power to the motor when a certain temperature is reached ;
And a cover for holding the thermal protector,
The cover is fixed to the outer frame of the motor with the thermal protector held on the outer frame side of the motor while holding the thermal protector . The thermal protector is provided with two lead wires at one end in a V shape, and inserted into the bag portion with the opposite lead wire side in the back,
The hand dryer according to claim 1, wherein the cover is provided with a protrusion inserted into the bag portion to hold the thermal protector. An opening is provided on the motor shell, hand drying apparatus according to claim 1 or 2, wherein the securing the cover over the opening. The hand dryer according to any one of claims 1 to 3, wherein the cover is fixed to the motor outer frame by binding. The hand dryer according to any one of claims 1 to 3 , wherein the cover is fixed to the motor outer frame by screwing into a coupling hole for coupling the fan outer frame and the motor outer frame. Provide a heater to warm the air blown from the fan,
The heater, hand drying apparatus according to any one claims 1 to 5, characterized in that attached to the position facing the thermal protector across the motor.

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