KR20140093680A

KR20140093680A - Hand drying device

Info

Publication number: KR20140093680A
Application number: KR1020147012941A
Authority: KR
Inventors: 고우지 신자키; 다카시 고야마
Original assignee: 파나소닉 주식회사
Priority date: 2011-11-17
Filing date: 2012-11-06
Publication date: 2014-07-28
Also published as: WO2013073129A1; CN103945747B; CN103945747A; JP5909633B2; JP2013103111A

Abstract

The drying chamber 3 of the hand drying device 50 is provided with an insertion port 1, a nozzle 4 and a drain port 8. A drain cup 9 for storing the water droplet 23 is provided at the bottom of the main body 7 and a drain water path 10 for communicating the drain cup 9 with the drain port 8 is provided on the front surface of the main body 7 Is provided along the front cover (11). When the front cover 11 is removed, the drain water channel 10 and the power switch 12 are simultaneously exposed.

Description

[0001] HAND DRYING DEVICE [0002]

The present invention relates to a hand drying device.

Conventional hand drying devices have been used in washrooms, toilets, or kitchens to dry wet hands by rinsing with water or the like. In addition, a side panel for maintenance is provided on the side of the drying chamber of the hand dryer to confirm the drain channel (see, for example, Patent Document 1).

FIG. 6 is an exploded perspective view of a conventional hand drying apparatus, and FIG. 7 is a sectional view of a drying chamber of the same hand drying apparatus. 6 and 7, the conventional hand drying apparatus 100 is provided with a blower (not shown) inside, and takes out the high-pressure air fed from the blower into the drying chamber 103 provided above . Then, the high-pressure air blows off water droplets adhering to the hand 102 inserted into the drying chamber 103.

The drying chamber 103 has a nozzle 104 for opening the insertion port 101 toward the outside and for delivering high-pressure air to the inner wall surface thereof. The hand 102 is inserted into the drying chamber 103 from the insertion port 101 and removed. The high-pressure air delivered from the blower delivers high-pressure air from the nozzle 104 via a discharge air passage (not shown). The outer periphery of the main body of the hand drying apparatus 100 is covered with an outer panel 107 and formed into a box shape. The side surface of the main body of the hand drying apparatus 100 is provided with a cosmetic side cover 109 so as to cover the outer panel 107. [ The nozzles 104 are provided on the front surface (front side as viewed from the user) and the back surface (inside as viewed from the user) of the drying chamber 103.

The drying chamber 103 is provided with a ventilation opening 108 at its side surface and a sloped surface having a downward gradient from the center to the left and right at a bottom portion thereof and a drain 110 at an end thereof. The drain water channel 112 communicates the drain hole 110 of the drying chamber 103 with the drain cup 111 provided near the bottom of the main body of the hand drying apparatus 100. The drain water channel 112 is provided in a space between the outer panel 107 and the side cover 109. The drainage channel 112 can be identified from the side by separating the side cover 109 during maintenance. The air flow in the drying chamber 103 is discharged to the outside from the ventilation opening 108 so that the airflow taken out from the nozzle 104 is not blown in reverse from the insertion port 101 of the drying chamber 103.

In such a conventional hand drying apparatus 100, the discharge airflow flows along the hand 102 and collides with the bottom surface of the drying chamber 103. Further, the air inside flows toward the ventilation opening 108 provided on the side surface of the drying chamber 103. That is, since the air flows from the bottom to the side, the drain water channel 112 is required at the positions along both sides of the bottom of the bottom. For this reason, the side cover 109 has been separated during maintenance.

As described above, in the conventional hand drying apparatus 100, since the maintenance side cover 109 is provided on the side surface of the drying chamber 103, there is a problem that the maintenance can not be performed when the installation space is narrow. In addition, there is a problem that maintenance is not easy because there are many cleaning places.

International Publication Pamphlet WO 2005/110176

An object of the present invention is to provide a hand drying device.

In the hand drying device of the present invention, high-pressure air of 0.5 kPa to 15 kPa is blown out from a blower provided inside the main body, high-pressure air is taken out of the drying chamber through the discharge air passage, and water droplets adhered to wet hands inserted in the drying chamber are blown Discard and dry your hands. The drying chamber is provided with an inlet opening toward the outside of the drying chamber and an opening for inserting and removing a hand, a nozzle provided on the inner wall surface for taking out the high-pressure air toward the drying chamber, and a drain port provided on the bottom surface. Further, a drain cup for collecting water droplets is provided at the bottom of the main body, and a drain water channel for communicating the drain cup and the drain port is provided along the front cover covering the front surface of the main body. When the front cover is detached, the drain water channel and the power switch are simultaneously exposed.

In such a hand drying device, the front side of the user becomes a maintenance space. Therefore, it is possible to perform maintenance of the hand drying apparatus even if the space for installation is small and the side wall of the hand drying apparatus is close to the indoor wall, the sink, and the like.

1 is a front view of a hand drying apparatus according to Embodiment 1 of the present invention,
2 is a side view of a hand drying apparatus according to Embodiment 1 of the present invention,
3 is a front view of a hand drying apparatus according to Embodiment 2 of the present invention,
4 is a side cross-sectional view of a hand drying device according to Embodiment 2 of the present invention,
5 is a sectional view of a drying chamber of a hand drying apparatus according to Embodiment 2 of the present invention,
6 is an exploded perspective view of a conventional hand drying device,
7 is a cross-sectional view of a drying chamber of a conventional hand drying device.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)

Fig. 1 is a front view of a hand drying apparatus according to an embodiment of the present invention, and Fig. 2 is a side view of a hand drying apparatus according to an embodiment of the present invention. 1 and 2, in the hand drying device 50, the hand 2 is inserted into the drying chamber 3 from the insertion port 1, and the water droplet 23 attached to the wet hand 2 is blown Then, the hands (2) are dried. The hand drying device 50 is provided on the indoor wall 26 such as a toilet. Here, the insertion port 1 is provided on the upper portion of the box-shaped main body 7.

A blower 6 for delivering high pressure air 22 of 0.5 kPa to 15 kPa from the nozzle 4 is built in the lower portion of the main body 7 of the hand drying device 50 via the discharge air passage 5. As described above, the blower 6 provided inside the main body 7 is a centrifugal blower in which a turbo-type impeller is mounted on the rotating shaft of the electric motor. The drying chamber 3 is open toward the outside 24 of the drying chamber 3 and has an insertion port 1 for inserting and removing the hand 2 thereon. A nozzle 4 for taking out the high-pressure air 22 toward the drying chamber 3 is provided on an inner wall surface 3a of the drying chamber 3 on two opposing surfaces.

2, the drying chamber 3 is inclined forward to the side of the user 27 (that is, the front side thereof) on the side of the insertion port 1 (that is, the upper side) when viewed from the side. The bottom surface 3b of the drying chamber 3 is inclined and a drain port 8 is provided at the lowermost part of the drying chamber 3. A drain port 8 provided on the bottom surface 3b of the drying chamber 3 and a drain cup 9 for storing the water droplet 23 provided on the bottom portion 7a of the main body 7 are communicated with the drain water channel 10 have.

The drain water channel 10 is bent from the drain port 8 toward the front surface 7b of the main body 7 and provided along the front cover 11. [ The front cover 11 covers the front surface 7b of the main body 7 and is mounted on the main body 7 in normal use. The front cover 11 is detached and the inside is exposed when maintenance or the like inside the main body 7 is performed. 2, the front cover 11 is provided on the side of the user 27, that is, on the front side. The drain water channel 10 is formed by resin molding.

The drain water channel 10 has a so-called " groove " shape in which the front cover 11 side is opened. The opening portion of the drain water channel 10 is closed when the front cover 11 is mounted. That is, the front cover 11 constitutes the wall surface 10a of the drain water channel 10. As a result, when the front cover 11 is opened, since the inside of the drain water channel 10 is exposed, the maintenance becomes easier.

As shown in FIG. 1, a power switch 12 of the hand drying device 50 is provided adjacent to the drain water channel 10. The power switch 12 is exposed together with the drain water channel 10 when only the front cover 11 is peeled off. In a state in which only the front cover 11 is removed, the power supply connection terminal block 31 is not exposed but housed in a terminal block cover (not shown). In Fig. 1, the power supply connection terminal block 31 is exposed.

The drain port 8 is disposed closer to one of left and right sides than the center 3c of the drying chamber 3 as viewed from the front side and has a drying chamber 3 asymmetrically. The blower 6 is arranged shifted from the center 3c of the drying chamber 3 to the direction opposite to the drain hole 8 (right side in Fig. 1) as viewed from the front side. The distance L1 between the center position of the blower 6 and the center 3c is larger than the width dimension L2 of the drain water channel 10 as viewed from the front side. With this configuration, the drain water channel 10 and the blower 6 can be arranged compactly without interfering with each other. 1, the discharge air passage 5 is also shifted from the center 3c like the blower 6, and the air from the blower 6 smoothly flows.

2, the suction port of the blower 6 is provided on the back surface side of the main body 7 of the hand drying device 50. As shown in Fig. The suction air passage 20 before reaching the suction port of the blower 6 is formed on the back side of the main body 7 and sucks the air in the lower portion of the main body 7. At the end of the suction air passage 20, a filter 21 is provided. The suction air passage 20 prevents the dust 28 and the drain water in the outside air from being sucked.

2, the user 2 inserts the hand 2 from the insertion port 1 toward the drying chamber 3 to dry the wet hand 2 by rinsing the water or the like, as shown in Fig. The human sensibility sensor 25 provided in the vicinity of the insertion port 1 reacts and the blower 6 is operated and the high pressure air 22 is taken out from the nozzle 4. [ The water droplet 23 blown from the hand 2 becomes a drain water and is stored in the drain cup 9 through the drain water channel 10. [ During maintenance, remove the front cover (11). Maintenance is performed from the front side, which is the facing side of the indoor wall 26. [ When the front cover 11 is detached, the inside of the drain water channel 10 is exposed, and contaminants therein are cleaned. That is, even if there is a washstand or the like on the side of the hand drying device 50, it is not disturbed and can be easily maintained.

The drain water channel 10 is curved from the drain port 8 toward the front surface 7b and provided along the front cover 11. [ As a result, the groove of the drain water channel 10 becomes shallow, and contamination of the inside of the drain water channel 10 can be easily confirmed.

The drain water channel 10 and the drain port 8 may be located at a portion closer to the left and right center of the drying chamber 3 than at the side of the drying chamber 3. Compared with the case where the drain port 8 is provided at the side end of the drying chamber 3, the gradient becomes larger and the drainage becomes smooth. If the same gradient is used, the inner space of the drying chamber 3 becomes larger, and the space for inserting the hand 2 becomes larger. Further, as shown in Fig. 1, when the front cover 11 is peeled off, the power switch 12 is exposed.

Since the power switch 12 is provided inside the front cover 11, the power supply circuit is easily cut off when the front cover 11 is peeled off. That is, when one panel is separated at the time of operation, the power supply is easily cut off, and maintenance such as cleaning can be performed. In addition, a power connection operation is also possible.

(Embodiment 2)

In the second embodiment of the present invention, the same components as those in the first embodiment are denoted by the same reference numerals, and a detailed description thereof will be omitted, and only different points will be described.

Fig. 3 is a front view of a hand drying apparatus according to Embodiment 2 of the present invention, and Fig. 4 is a side sectional view of a hand drying apparatus according to Embodiment 2 of the present invention. Fig. 3 shows a state in which the front cover 11 shown in Fig. 1 at the lower part of the hand drying apparatus 51 is separated. 4 is a position where the drain water channel 10 is divided into two in the vertical direction.

As shown in Fig. 3, when the front cover 11 is peeled off, the drain water channel 10 is exposed at the left end as viewed from the front. The switch unit 16 is provided adjacent to the drain water channel 10.

A partition rib 17 is provided between the drain water channel 10 and the switch portion 16 including the power switch 12. As shown in Fig. 4, the partition ribs 17 are formed in such a manner that the top portion of the partition ribs 17 is in contact with the rear surface 11a of the front cover 11. [ Therefore, when the front cover 11 is mounted on the main body 7, the partition ribs 17 completely separate the drain water channel 10 and the switch portion 16 as shown in Fig. Therefore, drain water does not flood to the switch unit 16 side.

The switch unit 16 is provided with a power switch 12 of the main body of the hand drying device 51, a switch for energizing the heater provided in the inside of the hand dryer 51, and a switch for determining the blowing amount of the blower 6. The operation of the hand drying device 51 is controlled by these switch states.

When the front cover 11 is removed, the terminal block cover 30 is exposed. The terminal block cover 30 is peeled off and an external power supply connection operation is performed to a power supply connection terminal block (not shown) housed in the terminal block cover 30. [

As shown in Fig. 4, the drying chamber 3 has a shape in which the insertion port 1 is transferred close to the front surface 7b. The nozzles 4a provided on the rear side are provided on the projections 18 projecting from the back surface of the drying chamber 3. The nozzle 4a faces the nozzle 4b provided on the front surface 7b side. The bottom surface 3b of the drying chamber 3 is formed with a slope downward toward the front surface 7b and a drain port 8 is provided at the front end thereof. That is, the drain port 8 is provided on the front surface 7b side of the bottom surface 3b of the drying chamber 3. As a result, the bottom surface 3b of the drying chamber 3 and the drain water channel 10 are directly connected to each other in the vertical direction and are easily discharged.

5 is a sectional view of the drying chamber of the hand drying device according to Embodiment 2 of the present invention. As shown in Fig. 5, the drain port 8 is provided at a side end portion (right end portion in Fig. 5) of the bottom surface 3b. As shown in Fig. 4, the drain water channel 10 has an inner shape (indicated by the drain water channel inside 10b) curved from the drain hole 8 to the front surface 7b side. A drain cup (9) is disposed at the lower end of the drain water channel (10).

The drying chamber 3 will be described with reference to Figs. 4 and 5. Fig. 5 is a view showing the inner wall surface 3a on the side of the front surface 7b from the back surface side while the drying chamber 3 is divided in the vertical direction approximately parallel to the back surface of the main body 7. [ The nozzles 4b are arranged in two rows in the upper and lower rows, and the high pressure air 22 hits the tip of the hand and the palm of the hand to be inserted.

The bottom surface 3b of the drying chamber 3 is provided with a gradient going down to the right side (left side in the front view) in Fig. A drain port 8 is provided at an end of the bottom surface 3b of the drying chamber 3.

The drying chamber (3) is not provided with an opening on the surface other than the insertion port (1). That is, the inner wall surface 3a is closed with respect to the outer surface 24. The nozzle 4a shown in Fig. 4 is directed downward by the protruding portion 18 in its take-out direction. That is, the high-pressure air 22 taken out of the nozzle 4a strikes the inserted hand 2 and then flows toward the bottom surface 3b side of the drying chamber 3. By the flow of the high-pressure air 22, the water droplet 23 blown out from the hand 2 is efficiently transferred to the drain port 8 provided on the bottom surface 3b. Pressure air 22 impinging on the bottom surface 3b flows from the drain port 8 to the drain cup 9 but most of the high pressure air 22 flows from the insertion port 1 side along the back surface and the side surface of the drying chamber 3 .

In the second embodiment, the drain port 8 is close to the side surface of the drying chamber 3, but is not necessarily close to the side surface, and may be provided on the side of the center 3c.

(Industrial availability)

The hand drying apparatus of the present invention can be used in a dryer for industrial use which is required to dry an object in a short time, in addition to the purpose of hand drying, by a facility dryer using a nozzle structure.

1: insert 2: hand
3: drying chamber 3a: inner wall surface
3b: bottom 3c: center
4, 4a, 4b: nozzle 5: discharge air passage
6: blower 7:
7a: bottom part 7b: front
8: Drain 9: Drain cup
10: drain channel 10a: wall (of drain channel)
10b: Inside drain channel 11: Front cover
11a: back side 12: power switch
16: switch part 17: partition rib
18: protrusion 20: suction air passage
21: filter 22: high pressure air
23: water droplet 24: outside
25: seal sensor 26: indoor wall
27: user 28: dust
30: Terminal block cover 31: Terminal block for power connection
50, 51: Hand dryer

Claims

Pressure air of 0.5 kPa to 15 kPa is blown out from the blower provided inside the main body and the high-pressure air is taken out from the drying chamber through the discharge air passage to blow off water droplets adhered to the wet hands inserted in the drying chamber, A hand drying device according to claim 1,
Wherein the drying chamber is open toward the outside of the drying chamber and has an insertion port for inserting and removing the hand,
A nozzle provided on the inner wall surface to take out the high-pressure air toward the drying chamber,
And a drain port provided on the bottom surface,
A drain cup for collecting the water droplets is provided at the bottom of the main body,
A drain channel communicating the drain cup and the drain port is provided along a front cover covering a front surface of the main body,
And the drain water channel and the power switch are exposed at the same time when the front cover is removed.
Hand dryer.

The method according to claim 1,
Characterized in that the front cover constitutes a wall surface of the drain water channel
Hand dryer.

The method according to claim 1,
And the drain port is provided on the side of the front surface
Hand dryer.

The method according to claim 1,
A partition rib is provided between the drain channel and the switch unit including the power switch, and the partition rib is in contact with the back surface of the front cover.
Hand dryer.

The method according to claim 1,
Characterized in that the inner wall surface is closed with respect to the outside
Hand dryer.