KR101552581B1 - Hand dryer with air sterilization function - Google Patents

Abstract

The present invention provides a hand dryer with a sterilization function comprising: a housing with a hole-shaped air inlet receiving an intake of external air, and a hole-shaped air outlet discharging clean air whereby foreign substances are removed from the received external air on a lower part; a blower formed inside the housing, including a blower motor receiving air through the air inlet, and discharging clean air without the foreign substances through the air outlet; a free filter formed inside the housing, and primarily removing foreign substances contained in the air received through the inlet; a main filter formed inside the housing with the free filter, secondarily removing foreign substances of air gone through the free filter, and including a high-efficiency particulate air (HEPA) filter; and a UV LED lamp positioned between the free and main filters, and sterilizing the air gone through the free filter by radiating ultraviolet rays of a frequency having a sterilization function at a predetermined interval for a predetermined time. The present invention provides the hand dryer with the sterilization function capable of providing clean air by sterilizing air with ultraviolet rays radiated by the UV LED lamp positioned between the free and main filters removing foreign substances contained in the air.

Description

HAND DRYER WITH AIR STERILIZATION FUNCTION [0002]

The present invention relates to a hand dryer having an air disinfection function, and more particularly, to a hand dryer capable of providing clean air by sterilizing air with ultraviolet rays by a UV LED lamp positioned between a pre-filter for removing foreign substances from the air and a main filter To a hand dryer having an air sterilizing function.

The present invention relates to a hand dryer having an air sterilizing function.

The technology that is the background of the present invention is a structure for rapidly drying the water of hands with strong winds.

Conventional hand dryers suck foreign air and spray at high speed, so there is a problem that contaminants such as fine dust, fungus, bacteria, and fine particles in the air are directly sprayed to contaminate hands.

The background art of the present invention is disclosed in Korean Patent Registration No. 10-0597107 and the like, but a fundamental solution to the above-mentioned problem is not presented.

It is an object of the present invention, which has been devised to solve the problems described above, to provide an air sterilizing function capable of sterilizing air by ultraviolet rays by a UV LED lamp located between a pre- In order to provide a hand dryer.

Another object of the present invention is to provide a hand dryer having an air disinfection function that can prevent residues from falling off the floor or the like after the disinfectant is sprayed to the outside of the hand dryer.

It is still another object of the present invention to provide a hand dryer having an air disinfection function that displays replacement time of a filter according to the amount of foreign matter accumulated in an actual filter, thereby replacing the filter in time to prevent re-contamination of the filter.

According to an aspect of the present invention, there is provided a hand dryer having an air disinfection function, the hand dryer having a suction port having a hole for sucking outside air into the inside thereof and a suction port for removing foreign matter from the sucked outside air, A housing having a hole-like tuyere for discharging clean air to the outside; A blower installed in the housing and including a blowing motor to suck air through the suction port and to discharge clean air from which foreign matter is removed through the blowing hole; A prefilter provided in the housing for primarily removing foreign matter from the air sucked from the inlet; A main filter provided inside the housing together with the pre-filter, the main filter being provided with a HEPA filter to remove foreign matter of air passing through the pre-filter; A UV LED lamp positioned between the pre-filter and the main filter for sterilizing air passing through the pre-filter by irradiating ultraviolet rays having a sterilizing function at predetermined time intervals for a predetermined time; A disinfectant spray nozzle provided at a lower portion of the housing to spray the disinfectant to the outside; A disinfectant tank provided in the housing and storing a disinfectant; And a sterilizing liquid spray nozzle for spraying the disinfectant liquid from the disinfectant liquid spray nozzle to the disinfectant liquid spray nozzle so that the disinfectant liquid is supplied to the disinfectant spray nozzle by the pump and the supply or interruption of the disinfectant liquid is controlled by the solenoid valve Supply path; Wherein the disinfectant solution tank is connected to one end of the disinfectant solution supply path and connected to the other end of the disinfectant solution tank so that the remaining disinfectant solution in the disinfectant solution supply path is collected into the disinfectant solution tank when the solenoid valve is locked and the supply of the disinfectant solution is stopped; And a bypass valve provided in the disinfection-liquid recovery passage and operated in conjunction with the solenoid valve; And when a signal for selecting operation for disinfectant spray from the outside is received, the solenoid valve is opened to spray the disinfectant liquid to the outside of the housing through the disinfectant spray nozzle for a predetermined time, and then the solenoid valve is closed Wherein the disinfectant is sprayed and the bypass valve is opened so that the residual disinfectant is recovered to the disinfectant tank by the pressure difference between the disinfectant solution supply path and the disinfectant solution recovery path through the disinfection solution recovery path, The main filter is inclined in a direction opposite to the air supply direction when the air is supplied from the outside through the blower, and the main filter is made of a high efficiency particulate filter One end is grounded to a touch sensor connected to the MCU, When it is detected that the one end of the main filter is grounded with the touch sensor by the weight of the foreign substance in a state where no air is supplied from the outside through the blower, An alarm sound is generated through an alarm unit or a warning lamp is blinked.

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As described above, according to the present invention, there is provided a hand dryer having an air sterilizing function capable of sterilizing air by ultraviolet rays by a UV LED lamp located between a pre-filter for removing foreign matter of air and a main filter to provide clean air can do.

In addition, according to the present invention, it is possible to provide a hand dryer having an air disinfection function, which can prevent the remnant from falling off the floor or the like after the disinfectant is sprayed to the outside of the hand dryer.

In addition, according to the present invention, it is possible to provide a hand dryer having an air disinfection function that displays replacement time of a filter according to the amount of foreign matter accumulated in an actual filter, thereby preventing filter re-contamination at a time.

1 is a perspective view of a hand dryer having an air sterilizing function according to a preferred embodiment of the present invention.
2 is a bottom view of a hand dryer having an air sterilizing function according to a preferred embodiment of the present invention.
3 is a right side view of a hand dryer having an air disinfection function according to a preferred embodiment of the present invention.
4 is a left side view of a hand dryer having an air disinfection function according to a preferred embodiment of the present invention.
5 to 6 are views illustrating operation of the main filter replacement alarm function of the hand dryer having the air sterilizing function according to the preferred embodiment of the present invention.
7 to 8 are views illustrating operation of the disinfectant spraying function of a hand dryer having an air sterilizing function according to a preferred embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings.

The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, the present invention will be described with reference to the drawings for explaining a hand dryer having an air sterilizing function according to embodiments of the present invention.

FIG. 1 is a perspective view of a hand dryer having an air sterilizing function according to a preferred embodiment of the present invention, and FIG. 2 is a bottom view of a hand dryer having an air sterilizing function according to a preferred embodiment of the present invention.

1 and 2, a hand dryer 100 having an air sterilizing function according to a preferred embodiment of the present invention includes a housing 110, a pre-filter 120, and a main filter 130.

In the lower portion of the housing 110, there is provided a hole-shaped suction port 111 for sucking outside air into the inside thereof, and a hole-shaped blowing hole 112 for discharging purified air from which the foreign substances are removed from the sucked outside air.

At this time, the air sucked into the suction port 111 by the blower 113 provided inside the housing 110 and including the blowing motor passes through the pre-filter 120 and the main filter 130 to remove foreign matter .

The pre-filter 120 is provided inside the housing 110 and primarily removes foreign matter such as fine dust, mold, bacteria, and fine particles of the outside air sucked into the inlet 111.

The air having passed through the pre-filter 120 is provided in the housing 110 and is secondarily removed by passing through a main filter 130 provided as a HEPA filter (High Efficiency Particulate Air filter).

At this time, the HEPA filter is a high performance filter for removing fine particles from air and is widely used for air conditioning of a clean room. Install a HEPA filter in front of the inlet where air is injected in order to quickly remove fine particles such as dust from the building in a space where it is necessary to keep the inside of a building such as a pharmaceutical manufacturing plant, a food factory, and an animal experiment facility clean.

In addition, the HEPA filter requires periodic replacement because the layered filter filters the dust, so it is difficult to remove the dust from every corner and the performance of the air shower device is degraded.

The proximity sensor 114 further includes a lower portion of the housing 110. When an object such as a hand for drying the water approaches, the clean air is automatically discharged through the air outlet 112.

3 is a right side view of a hand dryer having an air disinfection function according to a preferred embodiment of the present invention.

Referring to FIG. 3, a hand dryer 100 having an air sterilizing function according to a preferred embodiment of the present invention further includes a UV LED lamp 135.

The UV LED lamp 135 is positioned between the pre-filter 120 and the main filter 130 and irradiates ultraviolet light having a sterilizing function for a preset time interval to the pre-filter 120 Sterilize the passing air.

At this time, it is preferable that the UV LED lamp 135 has a low power consumption of a low voltage and a single spectrum having a wavelength of 240 to 280 nm.

In addition, the hand dryer 100 having the air sterilizing function according to the preferred embodiment of the present invention may further include a heater 150.

The air can be heated through the heater 150 and then discharged to dry the hands more quickly, thereby suppressing the propagation of germs.

4 is a left side view of a hand dryer having an air disinfection function according to a preferred embodiment of the present invention.

Referring to FIG. 4, the hand dryer having the air sterilizing function according to the preferred embodiment of the present invention may further include a disinfectant spray nozzle 144, a disinfectant tank 140, and a disinfectant supply path 143.

The disinfectant spray nozzle 144 is disposed under the housing 110 to spray the disinfectant liquid to the outside.

Also, the disinfectant tank 140 is provided inside the housing 110, and the disinfectant solution is stored.

The disinfectant solution supply path 143 connected to the disinfectant solution injection nozzle 144 from the disinfectant solution tank 140 includes a pump 141 and a solenoid valve 142 so that the disinfectant solution And is supplied to the disinfectant spray nozzle 144 so that the supply or interruption of the disinfectant can be controlled by the solenoid valve 142.

5 to 6 are views illustrating operation of the main filter replacement alarm function of the hand dryer having the air sterilizing function according to the preferred embodiment of the present invention.

Referring to FIGS. 5 to 6, the hand dryer having the air sterilizing function according to the preferred embodiment of the present invention may further include a disinfection solution recovery passage 145 and a bypass valve 146.

One end of the disinfection solution recovery path 145 is connected to one side of the disinfectant solution supply path 143 and the other end is connected to the disinfectant solution tank 140. When the solenoid valve 142 is locked, The remaining disinfectant in the sterilizing liquid recovery passage 145 is recovered to the disinfectant liquid storage tank 140 through the disinfection liquid recovery path 145 due to the pressure difference between the disinfectant liquid supply path 143 and the disinfection liquid recovery path 145.

At this time, the disinfection solution recovery passage 145 is provided with a bypass valve 146, and is operated in conjunction with the solenoid valve 142.

For example, when an operation signal for disinfectant spraying is received from the outside, the solenoid valve 142 is opened and the disinfectant is sprayed to the outside of the housing 110 through the disinfectant spray nozzle 144 for a predetermined period of time , The solenoid valve 142 is closed to stop spraying the disinfectant solution and the bypass valve 146 is opened so that the pressure difference between the disinfectant solution supply path 143 and the disinfection solution return path 145 through the disinfection solution recovery path 145 The residual disinfectant solution is recovered to the disinfectant tank 140 by the disinfectant solution tank 140.

7 to 8 are views illustrating operation of the disinfectant spraying function of a hand dryer having an air sterilizing function according to a preferred embodiment of the present invention.

7, one end of the main filter 130 is fixed to the elastic member 131, and when the air is supplied from the outside through the blower 113, the main filter 130 is opposed to the air supply direction And one end of the main filter 130 is grounded to a contact sensor 133 connected to the MCU 132 to transmit information on the contamination degree of the main filter 130 to the MCU 132.

Referring to FIG. 8, when no air is supplied from the outside through the blower 113, the main filter 130 is generally not tilted and should not be grounded with the contact sensor 133.

7, the main filter 130 is inclined by the weight of the foreign matter even though no air is supplied from the outside through the blower 113, so that one end of the main filter 130 is connected to the contact sensor 133, The MCU 132 determines that foreign substances are accumulated in the main filter 130 in an amount greater than a predetermined amount and generates an alarm sound through the alarm unit 134 so that the alarm can be recognized from outside, Flicker.

Accordingly, when the main filter 130 is replaced, it can be easily recognized and replaced, thereby preventing re-contamination of the main filter 130.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

100 Hand dryer with air sterilization function
110 housing 111 inlet
112 blower 113 blower
114 Proximity sensor 120 Pre-filter
130 Main filter 131 Elastic member
132 MCU 133 Contact sensor
134 Alarm part 135 UV LED lamp
140 Disinfectant tank 141 Pump
142 Solenoid valve 143 Disinfectant supply line
144 disinfectant spray nozzle 145 disinfectant recovery line
146 Bypass Valve 150 Heater

Claims (3)

A housing 110 having a hole-shaped suction port 111 for sucking outside air into the lower portion thereof and a hole-shaped blowing hole 112 for discharging purified air from which the foreign material is removed, to the outside;
A blower 113 installed in the housing 110 to blow air through the suction port 111 and to discharge clean air from the clean air through the air outlet 112;
A pre-filter (120) provided in the housing (110) for primarily removing impurities of air sucked from the inlet (111);
A main filter 130 provided inside the housing 110 together with the prefilter 120 and secondarily removing foreign matter from the air passing through the prefilter 120 and provided as a HEPA filter;
A UV LED 120 disposed between the pre-filter 120 and the main filter 130 for sterilizing air passing through the pre-filter 120 by irradiating ultraviolet rays having a sterilizing function at predetermined time intervals for a predetermined period of time; A lamp 135; Lt; / RTI >
A disinfectant spray nozzle 144 provided at a lower portion of the housing 110 to spray the disinfectant to the outside;
A disinfectant tank 140 provided in the housing 110 and storing a disinfectant;
A pump 141 and a solenoid valve 142 are connected to the disinfectant spray nozzle 144 from the disinfectant tank 140 so that the disinfectant is discharged to the disinfectant spray nozzle 144 by the pump 141 A sterilizing liquid supply path 143 for supplying or stopping the supply of the disinfectant liquid by the solenoid valve 142;
When the supply of the disinfectant is stopped by the solenoid valve 142 being locked by connecting the other end of the disinfectant tank 140 to one end of the disinfectant solution supply path 143, A disinfectant recovery passage 145 which is recovered to the disinfectant tank 140; And
A bypass valve 146 provided in the disinfection solution recovery passage 145 and operated in conjunction with the solenoid valve 142;
Further comprising:
When the signal for selecting the operation for disinfectant spray from the outside is received, the solenoid valve 142 is opened and the disinfectant is sprayed to the outside of the housing 110 through the disinfectant spray nozzle 144 for a preset time, The bypass valve 146 is opened and the pressure difference between the disinfectant solution supply path 143 and the disinfection solution recovery path 145 is changed to the pressure difference between the disinfection solution supply path 143 and the disinfection solution recovery path 145 through the disinfection solution recovery path 145 The residual disinfectant solution is recovered to the disinfectant tank 140,
The main filter (130)
HEPA filter (High Efficiency Particulate Air filter)
The main filter 130 is tilted in a direction opposite to the air supply direction when air is supplied from the outside via the blower 113 and the one end of the main filter 130 The main body 130 is connected to the contact sensor 133 connected to the MCU 132 and transmits information on the degree of contamination of the main filter 130 to the MCU 132. In a state where air is not supplied from the outside through the blower 113 The MCU 132 senses that the one end of the main filter 130 is tilted by the weight of the foreign substance and is grounded to the contact sensor 133, And a warning light is blinked. ≪ IMAGE >
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