JP4064605B2 - Hand dryer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hand-drying device used in a washroom, a toilet, a kitchen, or the like in order to dry hands wet with water.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a hand drying device that dries a hand hygienically by holding the hand over warm air blown instead of wiping a wet hand with water or the like using a towel or a handkerchief has been put into practical use. For example, what can be used as a hair dryer has been developed. In these, an air flow is generated by rotating an air blowing means made of sirocco type blades by an induction motor, and the air flow is heated by a heating means made of an electric heater, and hot air is blown out to a manual insertion portion. In order to blow the water droplets from the top, there was a problem that the water droplets scattered downward.
[0003]
An improved version has been developed. For example, as shown in FIG. 5, the air flow blown from the high pressure air flow generator 61 through the rear blow nozzle 62 and the front blow nozzle 63 is simultaneously applied to both sides of the hand. It sprays as a high-speed jet, blows away the moisture of the hand inserted from the hand insertion part 64, and dries it. And it has a drain pipe for collect | recovering only the water which fell under the drying chamber among the water droplets blown away, and collects the water from a drain pipe in a drain tank.
[0004]
[Problems to be solved by the invention]
However, as in the above-mentioned conventional example, a hand dryer that blows away moisture by a high-speed jet collects water droplets in a drain tank and discharges it with a thin hose, etc. There was a problem.
[0005]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems and make it possible to remove and clean.
[0006]
[Means for Solving the Problems]
The present invention is an electric blower for blowing an air flow is disposed in the body to form an outer shell, a drying chamber for drying the hands inserted from the top opening of the body, is arranged on the inner surface of said drying chamber and ejection holes for ejecting air flow blown from the electric blower, and the air chamber communicating with the ejection hole and the blowing side of the electric blower, an intake port, wherein arranged on the inner surface below the drying chamber, the electric blower an electric blower case that houses the disposed lower electric blower case, a drain tank is integrated with the intake port, in the order to form a part of the intake air flow path between the electric blower and the drain tank A box is provided , and the drain tank and the inner box are detachably provided from the main body .
[0007]
Further, an electric blower disposed within body for blowing an air stream to form an outer shell, a drying chamber for drying the hands inserted from the top opening of the body, the electric disposed on an inner surface of said drying chamber and ejection holes for ejecting air flow blown from the blower, and provided an air inlet to the inner surface below the drying chamber in order to recover the air flow ejected from the ejection hole, the suction side of the air inlet and the electric blower wherein the circulation flow path communicated, with air blowing side of the electric blower and an air chamber communicating with the ejection hole, and an electric blower case that houses the electric blower, a drain tank provided in the lower part the electric blower case, and the drain tank A middle box body for forming a part of the circulation flow path is provided between the electric blower cases, and the drain tank and the middle box body are detachably provided from the main body .
[0008]
Further, the drain water formed in the drying chamber is dropped from the drain opening in the circulation channel to the drain tank by the drain opening in which a part of the bottom surface of the inner box is opened.
[0009]
A removable filter is provided in the inner box.
[0010]
According to the present invention, the air and water droplets blown off by the air flow from the electric blower pass through the intake port, and the water droplets are collected in the drain tank and separated from the air. Since the drain tank for separating the water droplets from the air and the inner box body are removable, the cleaning property can be improved. Further, by removing the drain tank, it is possible to allow air to pass between the drying chamber and the drain tank, and the cleaning becomes easy because the opening becomes large.
[0011]
In addition, it is possible to remove the middle box for forming a part of the circulation flow path between the drain tank and the electric blower case, and the cleaning property is improved.
[0012]
And since the filter in the inner box can be removed, the cleaning property is improved.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view schematically showing the overall configuration of the hand dryer according to the present embodiment, FIG. 2 is a longitudinal front view thereof, FIG. 3 is a sectional view taken along line AA in FIG. 2, and FIG. FIG.
[0014]
In the following description, the configuration of a hand drying device that circulates air to dry hands will be described.
[0015]
Reference numeral 1 denotes an electric blower that blows an air flow. Reference numeral 2 denotes a main body, which has a drying chamber 4 for drying hands, and has an upper surface opened as a hand insertion portion 3 (open portion). In the drying chamber 4, an injection hole 5 for ejecting an air flow blown by the electric blower 1 is collected at the inlet portion (upper inner surface) 4 a, and an air flow ejected from the ejection hole 5 is collected in the inner portion (lower inner surface) 4 b. It has an intake 6. Below the drying chamber 4 is an electric blower 1 and an air flow passage 7 for supplying air to the electric blower 1 (a flow passage on the left side of the electric blower 1), and for circulating air from the intake port 6 to the electric blower 1. A circulation flow path is provided. The circulation flow path 8 extends downward from the intake port 6 and includes a collection unit 8a including both air and water droplets, a circulation unit 8b from the collection unit 8a to the electric blower 1, and a blow flow channel 7 In addition, a water droplet collection port 10 for collecting water droplets from the collection unit 8a to the drain tank 9 is provided.
[0016]
Reference numeral 11 denotes an electric blower case that houses the electric blower 1. The electric blower case 11 sucks air from the blow passage 7 to the center of the fan 12 and blows it in a circumferential shape. A part of the air flow of the blast releases air from the inside of the fan 12 to the motor 13.
[0017]
Next, the configuration will be described along the flow of air after exiting the electric blower 1 with reference to the cross-sectional view of FIG. Reference numeral 14 denotes an air chamber which is divided into a front air chamber 14a and a rear air chamber 14b and communicates with each other. The air chamber 14 occupies almost the entire lateral width in the main body 2 and ensures a sufficiently wide cross-sectional area (about 10 times or more than the ejection hole 5). The air that has entered the air chamber 14 passes through the inside and blows out from the ejection hole 5 to the drying chamber 4.
[0018]
As shown in FIG. 4, an inner box 17 is provided on the drain tank 9 to form a flow path for the circulating flow to pass, and a filter that enters the electric blower 1 side of the inner box 17 is provided with a filter. 18 is provided. Reference numeral 19 denotes a drain opening for dropping water droplets into the drain tank 9. The drain tank 9 is detachable from the main body 2, and each of the inner box body 17 and the filter 18 is separable.
[0019]
20 is a sensor, and 21 is a power switch.
[0020]
Next, the operation of the above configuration will be described. When a hand is inserted into the drying chamber 4 from the hand insertion unit 3, the sensor 20 detects the hand and drives the electric blower 1. Then, the air flow sucked from the intake port 6 is sucked into the electric blower 1 through the circulation flow path 8 and the air flow path 7, and the air is discharged from the center of the fan 12 through the splash of the fan 12 in a circumferential shape.
[0021]
The air discharged from the electric blower 1 is guided to the ejection hole 5 through both the front air chamber 14a and the rear air chamber 14b of the air chamber 14. In the front air chamber 14a and the rear air chamber 14b, the cross-sectional area is sufficiently wide as compared with the ejection holes 5 as described above. Therefore, the front air chamber 14a and the rear air chamber 14b are almost uniformly compressed, and a stable high-speed jet is ejected from the ejection holes 5. be able to. The ejection holes 5 are provided facing each other so that jets of both the palm and the back of the hand are sprayed at the same time. The ejection direction is the back direction of the drying chamber 4, that is, the downward direction in the figure (the direction of the inserted finger of the hand: The hand is tilted slightly (5-10 °).
[0022]
On the other hand, as shown in FIG. 2, the water droplets sucked into the intake port 6 together with the air flow are accelerated downward by the air flow in the recovery portion 8a of the circulation flow path 8, and at the bent position to the circulation portion 8b Then, it is dropped and separated by the inertia at the position of the water droplet collection port 10 and collected in the drain tank 9. The filter 18 mainly prevents dust from flowing into the electric blower 1.
[0023]
At the time of maintenance, the power switch 21 is temporarily turned off and cleaning is performed. However, all or one of the drain tank 9, the inner box 17 and the filter 18 is detached from the main body 2 and separated, and exposed to running water to give physical force. Can be washed. Thus, since the drain tank 9, the inner box body 17 and the like can be removed, the cleaning is easy and the apparatus is very easy to use.
[0024]
【The invention's effect】
As described above, according to the present invention, the drain tank that separates into water droplets and air and the inner box can be removed, so that the cleaning property is improved. Further, by removing the drain tank, it is possible to allow air to pass between the drying chamber and the drain tank, and cleaning becomes easy because of the large opening.
[0025]
Further, when a part of the circulation flow path is formed between the drain tank and the electric blower case, since the inner box body can be removed, the cleaning property is improved.
[0026]
And since the filter in the middle box on the upstream side of the electric blower can also be removed, the cleanability is improved.
[0027]
As described above, since the drain tank, the inner box, and the filter can be removed, the hand drying device can be removed. Therefore, a portion that is not removed can reach the air flow path during cleaning. Therefore, a clean device can be provided.
[Brief description of the drawings]
FIG. 1 is a perspective view showing the overall configuration of a hand dryer according to an embodiment of the present invention.
FIG. 2 is a longitudinal front view showing the embodiment.
3 is a cross-sectional view taken along line AA in FIG.
FIG. 4A is an exploded perspective view showing the hand drying device in the embodiment.
(B) The perspective view which decomposes | disassembles and shows the drain tank and middle box in the same embodiment.
FIG. 5 is a longitudinal side view showing a configuration of a conventional hand drying apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Electric blower 4 Drying chamber 5 Ejection hole 6 Intake port 8 Circulation flow path 9 Drain tank 11 Electric blower case 14 Air chamber 17 Inner box 18 Filter 19 Drain opening

Claims (4)

  An electric blower that is arranged in a main body that forms an outer shell and blows an air flow, a drying chamber that dries a hand inserted from the upper surface opening portion of the main body, and an inner surface of the drying chamber that is arranged on the inner surface of the drying chamber. An electric blower for housing the electric blower, a blowout hole for ejecting the blown air flow, an air chamber communicating with the blower side of the electric blower and the blowout hole, an intake port disposed below the inner surface of the drying chamber, and A case, a drain tank arranged at a lower portion of the electric blower case and interlocking with the intake port, and a middle box for forming a part of the intake passage between the drain tank and the electric blower. The hand dryer is provided, wherein the drain tank and the inner box are detachable from the main body. An electric blower that is arranged in a main body forming an outer shell and blows an air flow, a drying chamber that dries a hand inserted from an upper surface opening portion of the main body, and an inner surface of the drying chamber that is arranged on the inner surface of the drying chamber. An ejection hole for ejecting the blown air flow, an intake port disposed below the inner surface of the drying chamber for collecting the air flow ejected from the ejection hole, and the intake port and the suction side of the electric blower communicate with each other a circulation flow path, and the air chamber communicating with air blowing side ejection hole of the electric blower, wherein the electric blower case that houses the electric blower, a drain tank provided in the lower part the electric blower case, the electrostatic movement and said drain tank An intermediate box for forming a part of the circulation flow path between the blower cases is provided, and the drain tank and the inner box are provided detachably from the main body. apparatus.   The drain opening formed in a part of the bottom surface of the inner box body is configured so that drain water formed in the drying chamber is dropped from the drain opening in the circulation channel to the drain tank. The hand dryer described.   The hand dryer according to any one of claims 1 to 3, wherein a removable filter is provided in the inner box.

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