JPH0123359Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a wet hand dryer that dries wet hands using warm air.

Conventionally, this type of wet hand dryer has a fan and a heater placed inside a casing having an inlet and an outlet, and the fan sucks fresh air from the inlet into the casing and heats it with the heater. There is a known device in which the heated air is then blown out of the casing from an outlet as warm air to dry wet hands in the vicinity of the front of the outlet (see 1981, August 1989, attached to this application). (Refer to the Matsushita Electric Industrial Co., Ltd. catalog published on May 21).

However, with the conventional type, hot air is blown out from the outlet and the heat is released into the atmosphere, while the heater must constantly heat the fresh air to a predetermined temperature, resulting in a large amount of heat loss. There were problems in that it took a long time to dry the hands, and a large heater that generated a large amount of heat had to be used.

By the way, in such a wet hand dryer, in order to give a refreshing feeling to the user who dries wet hands, an air freshener is placed inside the casing, and the fragrance from the air freshener is blown out from the outlet along with warm air. It is possible to do so. However, when carrying out this process, the amount of fragrance consumed is extremely large in the conventional wet hand dryer, which takes a long drying time, as the fragrance tends to evaporate or sublimate due to heat. Therefore, the reality is that it has not yet been implemented.

The present invention was devised in view of these points, and it circulates warm air heated by a heater and the aroma from an aromatic agent placed inside the casing inside the casing without releasing it outside the casing. By reusing it for drying hands, heat loss is reduced, the drying time for wet hands is shortened, and the heater is made smaller. At the same time, the consumption of the above-mentioned aromatic agent is suppressed, and the fragrance is retained. The purpose is to provide a refreshing feeling to the user.

In order to achieve this purpose, the configuration of the present invention includes a casing with a hand insertion port opened on the front.
A hot air generation chamber in which a hot air blowing device including a fan and a heater is arranged and a drying chamber facing the hand insertion port are defined, and the drying chamber has a hot air blowing port and a hot air suction port. The hot air outlet is communicated with the outlet of the hot air blowing device, and the hot air suction port is communicated with the suction port of the hot air blowing device,
A circulation path is formed in which warm air from the hot air blowing device is circulated through a drying chamber, and an aromatic agent is disposed in the middle of the circulation path. The purpose is to effectively dry wet hands in the drying room by circulating warm air together with the aroma from the aromatic agent.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

1 to 3 show a wall-mounted wet hand dryer A according to the present invention, in which 1 is a rectangular box-shaped casing, and the casing 1 is attached to a wall by means of a mounting bracket (not shown) or the like. In addition, a hand insertion opening 2 is provided at the lower front of the casing 1, through which a wet hand can be freely inserted into the casing 1 (drying chamber 5 to be described later). .

Furthermore, inside the casing 1, a partition plate 3 is provided.
is provided so as to surround the space facing the hand insertion port 2 from above and both left and right sides, and is opposed to the hot air generation chamber 4 on the upper side inside the casing 1 and the hand insertion port 2 on the lower side by the partition plate 3. A drying chamber 5 is defined. A turbo fan 6 as a centrifugal fan is disposed in the warm air generation chamber 4 with its fan portion 6 a close to the upper surface 3 a of the partition plate 3 . It is fixed to the casing 1. Further, PCT ceramics 8, 8 as heaters are disposed on the left and right sides of the fan portion 6a of the turbo fan 6, respectively, and the PCT ceramics 8 are arranged so that the surface area per unit volume is extremely large. A heating element that is formed in a honeycomb structure or other structure, and when energized, it self-heats and the temperature of the element rises, and when it reaches the Curie point, the resistance value increases rapidly and self-controls, reducing power consumption. It is.
Therefore, the fan portion 6a of the tarpo fan 6
The air sucked in from below is passed through PCT Ceramics 8,
A hot air blowing device 9 is constructed in which the heated air is heated by the PCT ceramics 8 and blown out downstream of the PCT ceramics 8 and 8 as hot air. Incidentally, the hot air blowing device 9 (turbo fan 6 and PCT ceramics 8, 8) is connected to a wet hand detector, which is not shown but is provided in the drying chamber 5 and consists of a photoelectric switch or a proximity switch. When a wet hand is inserted into the drying chamber 5, it is activated by a detection signal from the wet hand detector. Further, a mounting member 7 for mounting the turbo fan 6 is provided so as to partition the hot air generation chamber 4 into upper and lower parts, and the mounting member 7 allows the air sucked from below the fan 6a of the turbo fan 6 to be It is designed to be guided in the direction of the PCT ceramics 8 without flowing upwards beyond the fan 6a.

On the other hand, the drying chamber 5 includes the warm air blowing device 9.
The hot air suction port 10 is located on the top surface 3a of the partition plate 3, facing the suction port 9a (fan 6a of the turbo fan 6).
The hot air suction port 11 directly faces and communicates with the suction port 9a of the hot air blowing device 9. The drying chamber 5 also has a warm air blower consisting of a pair of upper and lower blower ports 11a and 11b that communicate with the left and right two blower ports 9b and 9b (downstream side surfaces of the PCT ceramics 8 and 8 respectively) of the hot air blower device 9. Exit 1
1 and 11 are open. That is, the first air outlet 11a on the upper side of each hot air outlet 11 is connected to the partition plate 3.
The lower second air outlet 11b is formed by positioning the lower end of the side surface 3b of the partition plate 3 above the bottom of the casing 1, and Air outlet 11a, 11b
The hot air blowing device 9 is connected to the hot air blowing device 9 through a communication path 12 formed by the side surface 3b of the partition plate 3 and the casing 1.
The air outlets 11a and 1
Warm air is blown out from 1b toward the center of the drying chamber 5. Therefore, a circulation path 13 is formed in which warm air from the hot air blowing device 9 is circulated through the drying chamber 5.

Further, an aromatic agent storage section 14 is formed in the upper part of the warm air generation chamber 4 and is partitioned by a mounting member 7 and a small partition plate 15.
are small holes 16, 16, . . . provided in the mounting member 14.
It communicates with the hot air flow side of the hot air generation chamber 4, that is, the circulation path 13, through the hot air generating chamber 4. The air freshener storage section 14
A liquid or solid fragrance 17 is placed in the casing 1, while a fragrance storage part 1 is placed in the front of the casing 1.
An opening 18 is provided corresponding to 7, and the fragrance 17 can be replaced through the opening 18. In addition, 19 is a draining mat, 20 is an electrical parts box, and 21 is a deflection plate which directs the hot air blown out from the second air outlet 11b of the hot air air outlet 11 toward the center of the drying chamber 5.

Therefore, in the embodiment described above, when a wet hand is inserted into the drying chamber 5 through the hand insertion port 2, the warm air blowing device 9 is activated in response to a detection signal from the wet hand detector that detects this. The hot air blown out from the left and right outlets 9b by the operation of the hot air blowing device 9 is sent to the hot air outlet 11 via the communication passage 12, respectively.
It is then sprayed and supplied to the drying chamber 5, where it is used to dry wet hands. The hot air used to dry the wet hands is sucked into the suction port 9a of the hot air blowing device 9 from the hot air suction port 10 of the drying chamber 5, and the PCT ceramics 8,
After further heating at step 8, each outlet 9 is opened as described above.
It is again blown out from b and circulated in the circulation path 13 via the drying chamber 5.

In this way, since the hot air from the hot air blowing device 9 is circulated within the circulation path 13 via the drying chamber 5, there is no heat loss due to the hot air being discharged to the outside. Since it is reheated every time it passes through PCT ceramics 8, even if a small PCT ceramic 8 with a low calorific value is used, the temperature of the hot air can be significantly increased, and as a result,
The time required to dry wet hands can be shortened. Further, by downsizing the PCT ceramics 8, not only can costs be reduced, but power consumption can also be reduced, contributing to energy savings.

Moreover, each of the warm air outlets 11 has a first opening that blows out warm air from the upper side of the drying chamber 5 toward the center of the drying chamber 5.
It consists of the blower outlet 11a and the second blower outlet 11b that blows warm air from the bottom of the drying chamber 5 toward the center of the drying chamber 5, so that the wet hand inserted into the drying chamber 5 can be inserted from above and below without turning over. Hot air can be blown over the entire wet hand to effectively dry it, thereby improving usability and further shortening the drying time.

Further, as described above, when the warm air circulates in the circulation path 13, that is, when the wet hand dryer A is operated, the aroma agent 17 disposed in the aroma agent storage section 14 of the warm air generation chamber 4 is heated by the heat of the warm air etc. evaporate or sublimate by
The aroma is sucked into the circulation path 13 through the small holes 16, 16... of the mounting member 7, and the circulation path 1 is sucked into the circulation path 13 along with the warm air.
3, and the aroma wraps around the hands in the drying chamber 5, giving the user a refreshing feeling. Moreover, since the operating time (drying time of wet hands) per operation of the wet hand dryer A is short as described above, the evaporation or sublimation of the aromatic agent 17 is extremely small, suppressing its consumption. can be done.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but includes various other modifications. For example, in the embodiment described above, the hot air suction port 10 that opens into the drying chamber 5 is directly connected to the suction port 9 of the hot air blowing device 9.
a, and the hot air outlet 11 was communicated with the outlet 9b of the hot air blowing device 9 through the communication path 12, but conversely, the hot air suction port was connected to the air inlet of the hot air blowing device through the communicating path. The warm air outlet may be communicated directly with the outlet of the hot air blower.

Further, in the above embodiment, the aromatic agent storage section 14 for arranging the aromatic agent 17 was formed in the warm air generation chamber 4, but the present invention is particularly advantageous in that the aromatic agent storage section 14 is arranged in the warm air generation chamber 4.
It is not necessary to form the hot air blowing device 9.
The aromatic agent may be placed in the middle of the circulation path 13 through which the hot air from the drying chamber 5 is circulated.

Furthermore, as a heater constituting the hot air blowing device, a heating wire heater or the like may be used instead of the PCT ceramics 8 as in the above embodiment, and as a fan, various types such as a Sirotskov fan may be used instead of the turbo fan 6. A centrifugal fan may also be used.

As explained above, according to the present invention, a hot air generation chamber in which a hot air blowing device consisting of a fan and a heater is disposed inside a casing having a hand insertion port opened on the front surface and a hot air generation chamber opposite to the hand insertion port. The drying chamber has a hot air outlet and a hot air suction opening, the hot air outlet is connected to the outlet of the hot air blowing device, and the hot air inlet is connected to the hot air inlet. A circulation path is formed in which the warm air from the hot air blowing device is circulated through the drying chamber, and an air freshener is disposed in the middle of the circulation path. As a result, it is possible to reduce heat loss and increase the temperature by reheating the hot air, thereby shortening the drying time of wet hands and downsizing the heater. ,
While suppressing the amount of fragrance consumed, the fragrance can provide a refreshing feeling to the user.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of a wall-mounted wet hand dryer, FIG. 2 is a longitudinal sectional front view thereof, and FIG. 3 is a longitudinal sectional side view thereof. 1...Casing, 2...Hand insertion port, 4...Hot air generation chamber, 5...Drying room, 6...Turbo fan,
8...PCT ceramics, 9...hot air blowing device,
9a...Suction port, 9b...Blowout port, 10...Hot air suction port, 11...Hot air blowout port, 13...Circulation path,
17...Fragrance.

Claims (1)

[Scope of utility model registration request] A hot air generation chamber 4 in which a hot air blowing device 9 consisting of a fan 6 and a heater 8 is disposed inside a casing 1 with a hand insertion port 2 opened on the front surface, and a drying chamber 5 facing the hand insertion port 2. A hot air outlet 11 and a hot air suction port 10 are opened in the drying chamber 5, and the hot air outlet 11 is connected to the hot air inlet 9b of the hot air blowing device 9. 10 are respectively communicated with the suction ports 9a of the hot air blowing device 9, and a circulation path 13 is formed through which hot air from the hot air blowing device 9 is circulated through the drying chamber 5. A wet hand dryer characterized in that an air freshener 17 is placed in the middle of the dryer.