KR20230155506A - sterilizing pan - Google Patents

Abstract

first body; a rotation motor located on the first body; A hub that rotates by receiving rotational force from the rotation motor; an impeller extending from the hub to circulate air; a second body located below the hub; A sterilization module coupled to the first body; And the sterilizing fan including a control unit that controls the rotation motor and the sterilizing module can sterilize the entire indoor air by sterilizing contaminated air and spreading the sterilized air uniformly throughout the room.

Description

sterilizing pan

The present invention relates to a sterilizing fan that can sterilize contaminated air and simultaneously perform indoor stagnation and human sterilization.

In indoor spaces equipped with air conditioners such as air conditioners, cooling or heating can be easily performed. However, since air conditioners are equipped with outdoor units such as compressors, installation may be difficult or expensive depending on the building structure. Even if installed, the outdoor unit generates noise and consumes a lot of power, so there is a burden on power costs when using it.

Cold or hot wind generated by the air conditioner is supplied indoors using a fan provided in the air conditioner itself, but it stays near the air conditioner, causing a temperature difference indoors, and in the case of heating, there is a problem that the air easily dries. In addition, when using an air conditioner, it is operated with the windows closed without ventilation for efficiency, so there is a problem that the indoor air is not circulated and the pollution level increases.

A ceiling fan equipped with a fan, such as an electric fan, can be used to increase efficiency by circulating cold or warm air generated by the air conditioner, or for cooling in situations where the temperature is not too high. Due to limitations in installation space, unilateral fans have limited blade size, weak wind power, and low air circulation efficiency.

Ceiling fans can be installed on the ceiling to utilize the space under the ceiling where people or furniture are not located, so the size of the fan can be increased. Additionally, it can be installed in the central part of the room, which has the advantage of increasing air circulation efficiency throughout the room.

Ceiling fans can be operated with lower power than air conditioners using compressors, so they can be used as replacements for air conditioners or by increasing the efficiency of air conditioners to reduce power consumption.

As interest in hygiene increases, there is a need for personal disinfection products, and the number of users of air purifiers to purify indoor air is increasing. However, air purifiers are effective in removing airborne particles such as fine dust, but have limitations in removing microorganisms such as viruses and bacteria, and it is difficult to remove contaminants located on furniture or indoor surfaces other than the air.

Recently, the number of users going beyond air purifiers and using personal UV sterilizers is increasing. However, since UV wavelengths also affect the human body, they operate in limited spaces and are helpful in sterilizing specific items, but are difficult to use for sterilizing the entire room.

The purpose of the present invention is to provide a sterilizing fan that can sterilize polluted air and simultaneously sterilize the entire room and the human body.

first body; a rotation motor located on the first body; A hub that rotates by receiving rotational force from the rotation motor; an impeller extending from the hub to circulate air; a second body located below the hub; A sterilization module coupled to the first body; and a control unit that controls the rotation motor and the sterilization module.

The sterilization module may include a plurality of modules and may be arranged at an angle from the bottom outward.

There are N sterilization modules and can rotate at an angle of 180°/N.

It further includes a human body detection sensor located at the bottom of the sterilizing fan and detecting a person nearby, and the control unit can switch the sterilization module to OFF or a human body sterilization mode depending on the presence or absence of a person in the human body detection sensor.

The control unit may switch the sterilization module to OFF after a reference time in the human body sterilization mode.

If the human body detection sensor does not detect a person after turning the sterilization module OFF, the control unit may turn the sterilization module back on to switch to space sterilization mode.

The control unit may increase the operation time of the human body sterilization mode as the distance between the person and the sterilization module increases.

The sterilization module may include a UV-C excimer lamp.

The sterilization module is located in front of the UV-C excimer lamp and may further include an optical filter that removes wavelengths of 238 nm to 280 nm.

The optical filter may include hafnium (Hf).

It further includes a reflector located on the back of the UV-C excimer lamp, and the UV-C excimer lamp can be located in a groove formed in the reflector.

It may further include a fixing part coupled to the first body and fixing the sterilizing fan to the ceiling.

According to the sterilizing fan of the present invention, it is possible to sterilize the entire indoor air by sterilizing contaminated air and spreading the sterilized air uniformly throughout the room.

In addition, it can sterilize walls, objects, and human bodies that are directly exposed to ultraviolet rays, eliminating viruses and bacteria indoors.

At the same time, it can perform indoor stagnation and human body sterilization, eliminating viruses and bacteria attached to the body of people entering from outside.

Figure 1 is a perspective view showing a sterilizing pan of the present invention.
Figure 2 is a side view showing the sterilizing pan of the present invention.
Figure 3 is an enlarged cross-sectional view showing the body portion of the sterilizing pan of the present invention.
Figure 4 is a view of the body portion of the sterilizing fan of the present invention viewed from the bottom.
Figure 5 is a table showing an example of the operating time according to the distance and set sterilization level of the UV-C lamp.

Hereinafter, embodiments disclosed in the present specification will be described in detail with reference to the attached drawings. However, identical or similar components will be assigned the same reference numbers regardless of reference numerals, and duplicate descriptions thereof will be omitted. The suffixes “module” and “part” for components used in the following description are given or used interchangeably only for the ease of preparing the specification, and do not have distinct meanings or roles in themselves. Additionally, in describing the embodiments disclosed in this specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed descriptions will be omitted. In addition, the attached drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical idea disclosed in this specification is not limited by the attached drawings, and all changes included in the spirit and technical scope of the present invention are not limited. , should be understood to include equivalents or substitutes.

Terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Figure 1 is a perspective view showing the sterilizing pan 100 of the present invention, and Figure 2 is a side view showing the sterilizing pan 100 of the present invention.

The sterilizing fan 100 of this embodiment is shown in the form of a ceiling fan fixed to the ceiling, but is not limited to this and may be located on the wall or on the floor. However, the installation of a circulator for indoor air circulation generally uses a ceiling fan installed on the ceiling. Ceiling fans have the advantage of high space utilization in that they use ceiling space where no people walk and furniture is not placed. .

The sterilizing fan 100 of the present invention includes an impeller 135 that rotates to circulate air, a hub 130 that rotates the impeller 135, and a first body 110 located on the back of the hub 130. ) and a first body 140 located in front of the hub 130.

The first body 110 is equipped with a power supply unit 162 that supplies power to drive the rotation motor 120 and the sterilization module 150, and receives power from the outside to operate the rotation motor 120 and the sterilization module ( 150).

The sterilizing module 150 may be disposed in the second body 140 in a direction toward the indoor space. As shown in FIG. 1, the sterilization module 150 includes a lamp case 151 and a plurality of sterilization lamps 152 that are mounted inside the lamp case 151 and provide UV light.

The sterilizing lamp 152 provides ultraviolet rays (UV) with a shorter wavelength than visible light and has a sterilizing effect by inactivating viruses, bacteria, and mold. The low-pressure mercury lamp and LED sterilizing lamp (152), which were mainly used in conventional sterilizers, were used, and the low-pressure mercury lamp and LED sterilizing lamp (152) were sterilized using ultraviolet rays in the wavelength range of 200 to 280 nm.

However, wavelengths over 238nm have the disadvantage of being unsafe when exposed to human skin or eyes, so they were used in a separate, closed space.

However, as interest in quarantine and hygiene has recently increased, there is a need for ultraviolet sterilizers that can be used in daily life. The wavelength band around 222nm (200nm~238nm) has a high DNA/RNA absorption rate and does not cause harm to skin and eyes.

Therefore, a UV-C excimer lamp 152 that emits ultraviolet rays of 222 nm can be used. Excimer is a pair of inert gases that do not combine in the ground state, but when stimulated using a high voltage discharge or electron beam, they combine with each other to form a compound. However, this compound is extremely unstable and has a very short lifespan, so it collapses immediately and emits light energy in the ultraviolet wavelength range. The excimer lamp 152 can be implemented using this light energy.

The UV-C excimer lamp of the present invention can use a far UV-C excimer lamp that can affect a long distance of about 2.5m, and can go beyond simply sterilizing the air to sterilize furniture, floors, and walls in a space. You can.

However, the UV-C excimer lamp also contains a small amount of light in other frequency bands, and since wavelengths of 238 nm or more are harmful to the human body, an optical filter 154 that removes ultraviolet rays of wavelengths of 238 nm or more may be further provided.

The optical filter 154 can transmit more than 80% of the ultraviolet rays of 200 to 238 nm, which are harmless to the human body, and less than 5% of the ultraviolet rays of 238 nm to 280 nm, which are harmful to the human body. For the above-mentioned performance, the optical filter 154 can be implemented by coating a multi-layer of a material containing hafnium (Hf).

Multiple UV-C excimer lamps can be mounted on one optical module, and a reflector 153 is placed on the back of the UV-C excimer lamp to effectively supply UV-C provided by the UV-C excimer lamp to the front. can do.

The reflector 153 includes a concave groove, and the lamp may be located in the concave groove portion of the reflector 153. The reflector 153 can increase efficiency by reflecting ultraviolet rays supplied toward the back of the UV-C excimer lamp toward the front.

The fixing part 115 for fixing the sterilizing lamp 152 to the ceiling is coupled to the ceiling, and the power supply unit 162 is mounted on the first body 110 through the connection part 114 connected to the first body 110. Power can be supplied to.

The hub 130 can be rotated by a rotation motor 120 mounted on the first body 110, and may have three or more impellers 135 as shown in FIG. 1. The direction of air can be changed depending on the direction and angle of the wings, and when the impeller 135 rotates, air sterilized by the sterilization module 150 can be uniformly supplied to the entire room.

It is possible to sterilize even the air in areas that the UV-C excimer lamp does not reach, and since unsterilized air is continuously supplied to the front of the sterilization module (150), sterilization efficiency can be increased.

Figure 3 is an enlarged cross-sectional view of the body of the sterilizing fan 100 of the present invention, and the rotation motor 120, power supply unit 162, and control unit 161 may be mounted on the first body 110.

The rotation motor 120 consists of a largely rotating rotor 123 and a fixed stator 122, and the rotor 123 rotates within the electromagnetic field formed by the stator 122. At this time, the rotor 123 rotates around the shaft 121, protrudes from the first body 110 to the shaft 121 in the front direction, and the hub 130 may be coupled to the shaft 121.

In this embodiment, the second body 140 located in front of the hub 130 penetrates the rotor 123 and the shaft 121 as shown in FIG. 3 in order not to rotate with the hub 130. It may further include a body rod 125 connecting the first body 110 and the second body 140.

The power supply unit 162 located in the first body 110 can supply power to the sterilization module 150 located in the second body 140 through the body load, and when the rotor 123 rotates, the body load A bearing 124 may be further provided between the body rod 125 and the rotor 123 to avoid resistance caused by 125.

The sterilizing module 150 of the present invention not only sterilizes the air, but can also sterilize the space itself or the human body of a person located under the sterilizing fan 100, so it is preferable that ultraviolet rays are evenly supplied to as wide a range as possible.

Accordingly, the sterilization module 150 may include a plurality for efficiency. In this embodiment, the two sterilization modules 150 can be arranged left and right symmetrically. Since there are a plurality of sterilization modules 150, they can be arranged at an angle facing outward to cover a wider area. As shown in Figure 3, the ultraviolet irradiation range can be expanded.

Figure 4 is a view of the body portion of the sterilizing pan 100 of the present invention viewed from the bottom. However, sterilization may not be sufficiently performed in locations where there is no sterilization module 150 in the horizontal direction. To compensate for this, the second body 140 may be rotated 90° so that the sterilization module 150 can be moved to a location where the sterilization module 150 is not present.

The rotation angle of the second body 140 may vary depending on the number of sterilization modules 150. The angle can be rotated by dividing 180° by the number of sterilization modules (150). For example, when there are three sterilization modules 150, the second body 140 can rotate 60°. That is, the purpose is to sterilize the angle covered by one sterilization module 150 by dividing it into two positions.

However, if the number of sterilization modules 150 is large, the entire 360° area can be sterilized even without rotation, so the second body 140 may not rotate. However, as the number of sterilizing modules 150 increases, the cost of the lamp increases, so it may be more advantageous to have two or three sterilizing modules 150 and rotate them.

The second body 140 may be rotated using a separate rotation motor 120 that rotates the body rod 125, or a magnet may be used. In the method using magnetic force, an electromagnetic field is formed by flowing current through a coil, etc., and the magnet located on the second body 140 moves according to the direction of the electromagnetic field formed on the wire, thereby rotating the second body 140.

The control unit 161 can control ON/OFF of the sterilization module 150. In the space sterilization mode, the air can be sterilized by turning on the sterilization lamp 152 and rotating the hub 130. The sterilizing lamp 152 of the present invention can affect a distance of about 2.5 m, so it can also sterilize floors and furniture adjacent to the sterilizing fan 100.

In space sterilization mode, the sterilization module 150 operates for a set time considering the desired sterilization level. Figure 5 is a table showing an example of the operating time according to the distance and set sterilization level of the UV-C lamp.

For example, if you want to sterilize even the most distant space to 99%, the sterilization module 150 can operate for 20.3 minutes. Depending on the settings, it can be rotated 90 degrees and run for an additional 20.3 minutes.

Ultraviolet rays can discolor furniture or floor wallpaper when exposed to ultraviolet rays, so it is advisable to operate the unit for a specified period of time. Additionally, in terms of energy saving, the control unit 161 can drive the sterilization module 150 for a set time.

However, if a person is present, the sterilization module 150 may stop operating or switch to a human sterilization mode to avoid being exposed to ultraviolet rays of a wavelength that are harmless to the human body for a long time.

The sterilizing fan 100 may further include a human body detection sensor 145 to detect a person, and the human body detection sensor 145 may include a motion sensor to detect human movement, an infrared sensor to detect temperature, a proximity sensor, It may include one of a variety of sensors, such as lidar to measure distance.

When the human body detection sensor 145 detects a person, the control unit 161 can stop the space sterilization mode and turn off the sterilization module 150, or switch to the human body sterilization mode and turn off the sterilization module 150 after operating for a certain period of time. there is.

Considering the allowable UV exposure time guided by ACGIH (American Conference of Governmental Industrial Hygienists), in human body sterilization mode, the sterilization module 150 can operate for about 1 minute and then stop operating.

In order to increase sterilization efficiency in human body sterilization mode, a voice guide can be provided to place a person under the sterilization fan 100.

The operating time of the human body sterilization mode may vary depending on the person's height. For a tall person, the person's head may be located at a distance of about 0.5 m from the sterilization module 150, and for a short person, the head may be located at a distance of about 1 m.

Since the distance to the sterilization module 150 varies depending on the person's height, sterilization efficiency may vary. In order to obtain a sterilization effect above a certain level, if the person's height is short, that is, if the person's head is far from the sterilization fan 100, the sterilization module 150 can operate for a longer time.

When sterilization is complete, the sterilization lamp 152 may be turned off and a notification sound may be provided to inform the user that sterilization is complete.

When a human body is detected and the sterilizing lamp 152 is turned off, the control unit 161 operates the sterilizing module 150 again to sterilize the space if a human body is not detected in the space.

As discussed above, according to the sterilizing fan 100 of the present invention, it is possible to sterilize the entire indoor air by sterilizing contaminated air and spreading the sterilized air uniformly throughout the room.

In addition, it can sterilize walls, objects, and human bodies that are directly exposed to ultraviolet rays, eliminating viruses and bacteria indoors.

At the same time, it can perform indoor stagnation and human body sterilization, eliminating viruses and bacteria attached to the body of people entering from outside.

The above detailed description should not be construed as restrictive in any respect and should be considered illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention.

Claims (12)

first body;
a rotation motor located on the first body;
A hub that rotates by receiving rotational force from the rotation motor;
an impeller extending from the hub to circulate air;
a second body located below the hub;
A sterilization module coupled to the first body; and
A sterilizing fan including a control unit that controls the rotation motor and the sterilizing module. According to paragraph 1,
The sterilization module includes a plurality,
A sterilizing fan characterized in that it is disposed at an angle toward the outside from the bottom. According to paragraph 2,
The number of sterilization modules is N,
A sterilizing fan that can be rotated at an angle of 180°/N. According to paragraph 1,
It is located at the bottom of the sterilizing fan and further includes a human body detection sensor that detects a nearby person,
The sterilizing fan is characterized in that the control unit switches the sterilization module to OFF or to a human body sterilization mode depending on the presence or absence of a person in the human body detection sensor. According to paragraph 4,
The sterilizing fan is characterized in that the control unit switches the sterilizing module to OFF after a reference time in the human body sterilizing mode. According to paragraph 4,
The control unit,
A sterilizing fan characterized in that if the human body detection sensor does not detect a person after switching the sterilizing module to OFF, the sterilizing module is turned on again to switch to space sterilizing mode. According to paragraph 4,
The control unit,
A sterilizing fan, characterized in that the operating time of the human body sterilization mode increases as the distance between the person and the sterilization module increases. According to paragraph 1,
A sterilizing fan wherein the sterilizing module includes a UV-C excimer lamp. According to clause 8,
The sterilization module is
A sterilizing fan located in front of the UV-C excimer lamp and further comprising an optical filter that removes wavelengths of 238 nm to 280 nm. According to clause 9,
The optical filter is a sterilizing fan characterized in that it contains hafnium (Hf). According to clause 8,
It further includes a reflector located on the back of the UV-C excimer lamp,
A sterilizing fan, characterized in that the UV-C excimer lamp is located in a groove formed in the reflector. In paragraph 1
A sterilizing fan coupled to the first body and further comprising a fixing part for fixing the sterilizing fan to the ceiling.

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