KR102258585B1 - A movable negative pressure apparatus - Google Patents

Abstract

The present invention relates to a movable negative pressure apparatus. According to the present invention, the movable negative pressure apparatus which is able to be applied to a hospital room which is not an isolation room, which is the conventional negative pressure ward, or a temporary hospital room to be used as a total negative pressure ward, easily place an air-conditioning facility serving as a passage for moving the air, be applicable even in a limited place, minimize the cost for facility investment generated during the construction process, replace a suction module and a discharge module with each other, modularize the power unit and the control unit at the same time, be easily separated from a mainframe, be rapidly replaced and repaired even there occurs a disorder such as a malfunction, easily separate and replace various filters and modules in the suction module and the discharge module, and maximize the efficiency in use for a user overall.

Description

A movable negative pressure apparatus

The present invention relates to a portable negative pressure device, and more particularly, it can be used as an overall negative pressure room by applying it to a room other than an isolation room, which is an existing negative pressure room, or by applying it to a temporarily made room, so it serves as a passage for air to move. It can be easily equipped with air-conditioning facilities that allow it to be applied in a state where the place is not limited, minimizes the facility investment cost that occurs during the construction process, and provides biological disasters such as bacteria and viruses and environmental problems such as fine dust and yellow dust. In order to improve the situation where the indoor air quality is deteriorated due to disasters, the pre and HEPA filters are used to filter out fine dust and yellow dust, and the UV filter is used to sterilize bacteria and viruses. A pressure sensor that can measure is installed on the front and rear sides of the equipment to enable automatic or manual operation by the set pressure difference. Even if the power is cut off in an emergency such as an external factor, the fan and UV filter can be operated independently for a certain period of time. The battery is built-in to drive it, and the intake and exhaust modules are interchangeable, while the power and control unit are modularized so that they can be easily separated from the main body, so that even if an abnormality such as a breakdown occurs, it can be replaced and repaired quickly. Various filters in the intake and exhaust modules also relate to a portable negative pressure device that allows the user to maximize the efficiency of use as a whole because the module can be easily separated from the body and can be easily exchanged.

Due to the recent air pollution problem, the occurrence of various pathogens, infectious viruses, and the rapid increase in allergy sufferers, it is necessary to remove micro-organisms such as bacteria, fungi and viruses or harmful chemical substances in the air. In particular, medical institutions provide a separate isolation space because there is a possibility that various viruses or pathogens originating from patients with specific diseases may be transmitted or cross-infected to medical staff or other patients, such as spreading through the indoor air of the medical institution. The isolation space provided in a medical institution to prevent microorganisms such as bacteria, fungi and viruses from spreading to the outside is called a negative room pressure, and the negative pressure room uses the difference in air pressure to control the flow of air. This difference in air pressure is realized through a separate negative pressure device, that is, air has a characteristic of moving from high pressure to low pressure. The negative pressure machine uses this characteristic of air to lower the pressure inside the hospital room to a lower level than the outside. This prevents microorganisms such as bacteria, fungi, and viruses from leaking out of the ward, and the negative pressure ward is used as a space to isolate and treat patients with contagious diseases.

However, the conventional system for preventing bacterial contamination in a bio-clean room of Korean Patent Registration No. 10-1350852, which has been practiced in the past, includes a differential pressure module for controlling the differential pressure of air and a purification filter for filtering polluted air in an isolation room equipped with an inlet pipe and an outlet pipe. This is to prevent various bacteria and viruses in the isolation room from leaking to the outside by installing it so that the inside of the isolation room can maintain a state of negative or positive pressure, as well as filtering and discharging the contaminated air in the isolation room, but this is the inlet pipe And since it is limitedly applicable only to places equipped with air-conditioning facilities that serve as passageways for air, such as exhaust pipes, there is a problem that high facility investment costs are required during the construction process, and the applied filter is contaminated after a certain period of time. Although replacement work should be performed periodically, replacement work for a contaminated filter is cumbersome.

Meanwhile, Middle East Respiratory Syndrome (MERS), Severe Acute Respiratory Syndrom (SARS), Avian Influenza Human Infection (AIHI), Novel swine-origin influenza A ( H1N1)) and Ebola hemorrhagic fever are used for the purpose of blocking the spread of new infectious diseases. Negative pressure isolation rooms are used to separate patients from outside and general patients for reasons of preventing the spread of infectious diseases, etc. , This is a facility that prevents pathogens contained in air or aerosols or droplets from being discharged to the outside by maintaining the air pressure in the hospital room lower than atmospheric pressure. The exhaust unit is located in the area adjacent to the bedside, which is located far from the door of the hospital room, and the air supply unit is located in the area adjacent to the door, and a differential pressure gauge is installed in the front room to check the air pressure. However, the FFU (Fan Filter Unit) in which the exhaust unit is communicated may be located inside or outside the ward, but it may be preferable to be disposed outside the ward from the viewpoint of maintenance, and is usually used for sterilization by dust collection and adsorption and In addition, although it is configured to be sterilized and disinfected, it is built to be fixed in an indoor space such as a hospital, so it takes a lot of money and time to install it, and it is necessary to quickly respond to the spread of a new infectious disease such as Corona 19 (COVID-19). If there is a serious problem that it is difficult and at the same time there is a problem in the management of the medical staff, there is a risk of additional spread infection in the same ward. There are often problems with

Korean Patent Registration No. 10-1350852 is disclosed. The Republic of Korea Registered Utility Model No. 20-0406536 is open.

The present invention for solving the above problems can be applied to a room other than an isolation room, which is an existing negative pressure room, or applied to a temporarily made room to use it as an overall negative pressure room. An object of the present invention is to provide a portable negative pressure device that can be easily provided so that it can be applied in a state where the place is not limited, and the facility investment cost that occurs in the construction process is minimized.

In addition, another object of the present invention is to filter fine dust and yellow dust by using a free and HEPA filter, and to sterilize bacteria and viruses by using a UV filter to provide a pressure sensor capable of measuring pressure indoors and outdoors It is installed on the front and rear of the equipment, and automatic or manual operation is possible by the set pressure difference, so it is possible to efficiently reduce the situation in which indoor air quality deteriorates due to biological disasters such as bacteria and viruses and environmental disasters such as fine dust and yellow dust. To provide a portable negative pressure device to improve.

In addition, another object of the present invention is that the intake and exhaust modules can be exchanged simultaneously, and the power and control unit are also modularized so that they can be easily separated from the main body, so that even if an abnormality such as a failure occurs, replacement and repair are possible quickly, And various filters in the exhaust module can also be easily separated from the main body and can be easily exchanged, so it is a portable negative pressure device that makes it easy and convenient to replace the contaminated filters that are polluted throughout and need to be replaced periodically. is to provide

In addition, another object of the present invention is that the storage battery is separately provided so that the fan and the UV filter can be operated independently for a certain period of time even if the power is cut off in an emergency such as an external factor, so that the user can maximize the efficiency of use as a whole. To provide a portable negative pressure device.

The present invention for achieving the above object protects the intake module, the exhaust module and the control module, is equipped with a guide that can be attached to a window or wall, and smoothly guides the intake air or the air discharged from the room. A main body provided with a flange so that the duct can be connected, and the main body sucks outside air and filters dust contained in the inhaled air to supply the inhaled air to the room, and removes bacteria and viruses contained in the inhaled air. A suction module provided with filters for destroying, and the main body to filter the dust contained in the indoor air in order to inhale the indoor air and discharge the inhaled air to the outdoors, and destroy the bacteria and viruses contained in the indoor air A discharge module equipped with filters for this purpose, and the main body is a BLDC motor (Brushless Direct Current Motor) provided in the discharge module and the suction module by measuring indoor and outdoor pressure, calculating the difference between the measured pressure and the set pressure. It is composed of a control module that controls the rotation of the fan motor, controls the UV filter and cut-off damper, receives external power to supply power to the internal module, and supplies power from the charged battery when the external power is cut off. it will be done

Accordingly, the suction module and the exhaust module have the same mechanical structure, so that when the direction of the fan is changed and mounted, they can be interchanged, and after separating by pulling to the front of the main body to facilitate filter replacement and module replacement. It is configured to remove and insert the filter from the top of each module.

Here, the suction module includes a pre-filter that filters to remove 100 μm or more of general dust contained in the air sucked from the outside, and a medium filter that filters to remove 10-100 μm of dust contained in the air that has passed through the pre-filter; , a HEPA filter that filters to remove 0.3 to 10 μm of fine dust contained in the air that has passed through the medium filter, and a UV that irradiates strong ultraviolet rays to destroy bacteria and viruses contained in the air that has passed through the HEPA filter It is provided with a filter and a fan driven by a BLDC motor to discharge the air sucked from the outside into the room, and the exhaust module has a pre-filtering filter to remove more than 100um of general dust contained in the air sucked from the room. A filter, a medium filter that filters to remove 10-100 μm of dust contained in the air that has passed through the pre-filter, and a HEPA filter that filters to remove 0.3-10 μm of fine dust contained in the air that has passed through the medium filter And, a UV filter that irradiates strong ultraviolet rays to destroy bacteria and viruses contained in the air that has passed through the HEPA filter, and a fan driven by a BLDC motor to blow the air sucked in from the room to the outside. is made available with

Accordingly, the fan directions of the suction module and the discharge module are symmetrical to each other, and the suction module and the discharge module are further provided with a blocking damper for blocking external air in a state where the negative pressure device is stopped.

Meanwhile, in the control module, a pressure sensor for measuring indoor and outdoor air pressure and transmitting it to the control unit, and the indoor and outdoor air pressure measured by the pressure sensor and the indoor and outdoor air pressure difference are displayed, and the A display unit that displays the operation state and the state of the power supply unit so that each can be checked, an operation unit that operates the operation, stop, and operation mode of the negative pressure device, and sets the air pressure difference between indoor and outdoor, provided in the suction module and the discharge module A driving unit for driving the applied UV filter, the BLDC motor and the blocking damper, and the air pressure measured by the pressure sensor and the air differential pressure set through the operation unit are compared to adjust the speed of the BLDC motor, which is a fan motor, and the UV filter and blocking A control unit for controlling the damper, a power supply unit for supplying power to the control unit, the driving unit and the storage battery by converting the input AC power into DC power, and supplying the power stored in the storage battery to the control unit and the driving unit when the input power is cut off; It is composed of a storage battery that receives and stores DC power, and outputs and supplies DC power to the power supply in case of an emergency.

The present invention implemented as described above can be applied to a ward other than an isolation room, which is an existing negative pressure ward, or applied to a temporary ward to use as an overall negative pressure ward, so air conditioning facilities that serve as a passage for air to move easily It has the effect that it can be applied in a state where the place is not limited and the cost of facility investment that occurs during the construction process is minimized.

In addition, the present invention uses a pressure sensor that can measure pressure indoors and outdoors so as to filter fine dust and yellow dust using a pre- and HEPA filter and to sterilize bacteria and viruses using a UV filter on the front and side of the equipment. Since they are installed on the rear and can be operated automatically or manually by the set pressure difference, the situation where the indoor air quality deteriorates due to biological disasters such as bacteria and viruses and environmental disasters such as fine dust and yellow dust can be effectively improved. It works.

In addition, the present invention provides the effect that the intake and exhaust modules can be interchanged, and the power and the control unit can also be modularized so that they can be easily separated from the main body, so that even if an abnormality such as a failure occurs, it can be replaced and repaired quickly. Since various filters can also be easily separated from the main body and can be easily exchanged, the replacement work for the contaminated filter that is polluted as a whole and needs to be replaced periodically is easy and convenient.

In addition, the present invention has the effect of maximizing the efficiency of use by the user as a whole because the storage battery is separately provided so that the fan and the UV filter can be operated independently for a certain period of time even if the power is cut off in an emergency such as an external factor.

1 is an exemplary configuration diagram showing the front to explain the movable negative pressure device implemented in accordance with the present invention.
Figure 2 is an exemplary configuration diagram showing one side to explain the movable negative pressure device implemented in accordance with the present invention.
3 is an exemplary view for explaining the internal configuration of the suction module and the discharge module of the portable negative pressure device according to the present invention.
4 is a block diagram for explaining an embodiment of the control module of the mobile negative pressure device according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention are provided to more completely explain the present invention to those of ordinary skill in the art, and the following embodiments can be modified in various other forms, and the scope of the present invention is not limited. It is not limited to the following examples. Rather, these examples are provided so that this disclosure will be more thorough and complete, and will fully convey the spirit of the invention to those skilled in the art.

The terms used in this specification are used to describe specific embodiments, and are not intended to limit the present invention. As used herein, the singular form may include a plural form unless the context clearly indicates a different case.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to drawings schematically illustrating embodiments of the present invention. In the drawings, for example, depending on manufacturing techniques and/or tolerances, variations of the illustrated shape can be expected. Accordingly, embodiments of the present invention should not be construed as limited to the specific shape of the region shown herein, but should include, for example, changes in shape caused by manufacturing.

First, referring to the accompanying drawings 1 to 4, the movable negative pressure device 100 is made such that the suction module 20, the discharge module 30 and the control module 40 can be coupled or separated.

Accordingly, it is possible to combine the suction module 20, the discharge module 20 and the control module 40 through the body 10 made of a frame of a certain square shape so as to be integrated, and the body 10 has A guide is mounted so that it can be attached to a window or a wall, and a duct for smoothly guiding the external air sucked in by the flange 11 of the main body 10 and the air discharged from the room can be connected.

The main body 10 is provided with a suction module 20, which filters the dust contained in the inhaled air in order to inhale the outside air and supply the inhaled air to the room, and bacteria and viruses contained in the inhaled air. Filters for destroying are provided.

That is, in the suction module 20, the fan 25 is blown by the driving of the fan motor 25a, which is a BLDC motor, and at this time, air is sucked from the outside (outside) and supplied to the room.

Accordingly, the sucked air is sequentially discharged into the room through the pre-filter 21, the medium filter 22, the HEPA filter 23, and the UV filter 24. At this time, the pre-filter 21 is removed from the outside. It is filtered to remove general dust of 100 μm or more contained in the inhaled air, and the medium filter 22 is filtered to remove 10-100 μm of dust contained in the air that has passed through the pre-filter 21, and the HEPA The filter 23 filters to remove 0.3 to 10 μm of fine dust contained in the air that has passed through the medium filter 22 , and the UV filter 24 contains bacteria contained in the air that has passed through the HEPA filter 23 . And strong ultraviolet rays are irradiated to destroy the virus, and the air that has passed through the UV filter 24 is discharged into the room, and the air sucked by the operation of the fan 25 is supplied to the room through various filters. This makes it possible to supply clean and fresh air.

In addition, in the exhaust module 30, the fan 35 is driven by the driving of the fan motor 35a, which is a BLDC motor, and at this time, air is sucked from the room and discharged to the outside (outside).

Accordingly, the air sucked in the room is sequentially discharged to the outside through the pre-filter 31, the medium filter 32, the HEPA filter 33, and the UV filter 34. At this time, the pre-filter 31 is It is filtered to remove general dust of 100 μm or more contained in the air sucked in the room, and the medium filter 32 is filtered to remove 10-100 μm of dust contained in the air that has passed through the pre-filter 31, The HEPA filter 33 is filtered to remove 0.3 to 10 μm of fine dust contained in the air that has passed through the medium filter 32 , and the UV filter 34 is included in the air that has passed through the HEPA filter 33 . Strong ultraviolet rays are irradiated to destroy bacteria and viruses, and the air that has passed through the UV filter 34 is discharged to the outside, and the air sucked from the room by the operation of the fan 35 uses various filters. Since it can be discharged to the harsh outdoors, it is possible to discharge clean air.

At this time, since the suction module 20 and the discharge module 30 have the same mechanical structure, if the directions of the fans 25 and 35 provided inside are changed and mounted, they can be interchanged, that is, the suction module If the direction of the fan 25 provided in 20 is changed, the function of the discharge module is performed, and if the direction of the fan 35 provided in the discharge module 30 is changed, the function of the suction module can be performed. .

Here, in order to replace the filters respectively provided inside the suction module 20 and the discharge module 30 provided in the body 10 or to replace the suction module 20 or the discharge module 30, the body ( 10) After pulling and separating the front surface, the filters can be removed and inserted through the upper part of each module, so that any user or operator can easily exchange it.

The suction module 20 and the exhaust module 30, which are components of the negative pressure device 100 according to the present invention, are driven in a state in which the direction of the fan is symmetrical to each other.

In addition, each of the suction module 20 and the discharge module 30 is further provided with blocking dampers 26 and 36, which means that when the negative pressure device 100 stops, the air flow is blocked, that is, outdoors. Inhaled air or air sucked in the room is not supplied, respectively, but is blocked.

The main body 10 is provided with a control module 40, which measures indoor and outdoor pressure, calculates the difference between the measured pressure and the set pressure, and is provided in the suction module 20 and the discharge module 30 It controls the rotation of the fan motor (25a, 35a), which is a BLDC motor, controls the UV filters (24, 34) and cut-off dampers (26, 36), receives external power to supply power to the internal module, When the external power is cut off, the overall control function is performed so that power can be supplied from the charged storage battery.

Accordingly, the control module 40 is provided with a pressure sensor 41 , which measures indoor and outdoor air pressure and transmits it to the controller 45 .

The control module 40 is provided with a display unit 42, which displays the difference between the indoor and outdoor air pressure measured by the pressure sensor 41 and the indoor and outdoor air pressure so that the user can easily check it, The operating states of the modules 20 , 30 , and 40 and the state of the power supply unit 46 are displayed so that the user can easily check them.

The control module 40 is provided with a manipulation unit 43, which can operate the operation, stop, and operation mode of the negative pressure device 100, and can set the air pressure difference between indoor and outdoor.

In addition, the control module 40 is provided with a driving unit 44, which includes UV filters 24 and 34 provided in each of the suction module 20 and the exhaust module 30, a fan motor 25a which is a BLDC motor, It is for driving the fans 25 and 35 and the blocking dampers 26 and 36 driven by 35a).

In addition, the control module 40 is provided with a control unit 45, which compares the air pressure measured by the pressure sensor 41 with the air differential pressure set through the operation unit 43, the BLDC motor fan motor 25a, 35a) is controlled to adjust the speed, and the driving of the UV filters 24 and 35 and the blocking dampers 26 and 36 is controlled.

In addition, the control module 40 is provided with a power supply unit 46, which converts the input AC power into DC power to supply power to the control unit 45, the drive unit 44, and the storage battery 47, respectively. , when the input power is cut off, such as in an emergency, the power stored in the storage battery 47 is supplied to the control unit 45 and the driving unit 44 .

Here, the control module 40 is provided with a storage battery 47 , which receives and stores DC power from the power supply unit 46 , and outputs and supplies DC power to the power supply unit 46 in an emergency.

Although not shown, the portable sound pressure device 100 according to the present invention is configured to enable communication with the control unit 45, that is, the sound pressure device 100 can be controlled by infrared communication through a wireless remote control (not shown), and , it is also possible to communicate with the central server through external communication to control the sound pressure device 100 .

Here, the external communication may be made of RS-485, Wi-Fi, or Bluetooth for smooth communication with the central server.

As described above, specific embodiments implemented by the present invention have been described, but it is apparent that various implementation modifications are possible within the limits that do not depart from the scope of the present invention.

Therefore, the scope of the present invention should not be conveyed limited to the described embodiments, and should be defined by the following claims as well as the claims and equivalents.

That is, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims; All changes or modifications derived from the concept of equivalents thereof should be construed as being included in the scope of the present invention.

10: body 11: flange
20: suction module 30: exhaust module
21,31: pre-filter 22,32: medium filter
23,33: HEPA filter 24,34: UV filter
25,35: fan 25a,35a: fan motor
26,36: blocking damper 40: control module
41: pressure sensor 42: display unit
43: operation unit 44: drive unit
45: control unit 46: power unit
47: storage battery 100: negative pressure device

Claims (4)

It protects the intake module, exhaust module, and control module, is equipped with a guide that can be attached to a window or wall, and is equipped with a flange so that a duct that smoothly guides intake air or air exhausted from the room can be connected. A main body and an intake module provided with filters for filtering dust contained in the inhaled air and destroying bacteria and viruses contained in the inhaled air in order to inhale external air and supply the inhaled air to the room; , an exhaust module provided with filters for filtering dust contained in indoor air and destroying bacteria and viruses contained in indoor air in the main body to suck indoor air and discharge the sucked air to the outdoors; The main body measures the indoor and outdoor pressure, calculates the difference between the measured pressure and the set pressure to control the rotation of the fan motor, which is a BLDC motor (Brushless Direct Current Motor) provided in the exhaust module and the suction module, and a UV filter and a control module that controls the cutoff damper, receives external power to supply power to an internal module, and supplies power from a charged storage battery when external power is cut off,
Since the suction module and the exhaust module have the same mechanical structure, interchange is possible when the direction of the fan is changed and mounted, and after separating by pulling to the front of the main body to facilitate filter replacement and module replacement, each is made to remove and insert the filter from the top of the module,
The control module includes a pressure sensor for measuring indoor and outdoor air pressure and transmitting it to the control unit, and displays the difference between indoor and outdoor air pressure and indoor and outdoor air pressure measured by the pressure sensor, and the operation state of each module A display unit that displays the state of the power unit and the power unit, respectively, an operation unit that operates the operation, stop, and operation mode of the negative pressure device, and sets the air pressure difference between indoor and outdoor, and UV provided in the suction module and the exhaust module A drive unit for driving the filter, the BLDC motor and the blocking damper, and the air pressure measured by the pressure sensor and the air differential pressure set through the operation unit are compared to adjust the speed of the BLDC motor, which is a fan motor, and the UV filter and the blocking damper A control unit for controlling, a power unit for converting the input AC power into DC power to supply power to the control unit, the driving unit and the storage battery, and supplying the power stored in the storage battery to the control unit and the driving unit when the input power is cut off; and DC power from the power supply unit A portable negative pressure device, characterized in that it consists of a storage battery that receives and stores the supply, and outputs DC power to the power supply in case of emergency.
delete The method of claim 1,
The suction module includes a pre-filter that filters to remove 100 μm or more of general dust contained in the air sucked from the outside, a medium filter that filters to remove 10-100 μm of dust contained in the air that has passed through the pre-filter, and the A HEPA filter that filters to remove 0.3 to 10 μm of fine dust contained in the air that has passed through the medium filter, and a UV filter that irradiates strong ultraviolet rays to destroy bacteria and viruses contained in the air that has passed through the HEPA filter; , provided with a fan driven by a BLDC motor to discharge the air sucked from the outside into the room,
The exhaust module includes a pre-filter that filters to remove 100 μm or more of general dust contained in the air sucked from the room, and a medium filter that filters to remove 10-100 μm of dust contained in the air that has passed through the pre-filter; A HEPA filter that filters to remove 0.3 to 10 μm of fine dust contained in the air that has passed through the medium filter, and a UV filter that irradiates strong ultraviolet rays to destroy bacteria and viruses contained in the air that has passed through the HEPA filter; , a movable negative pressure device, characterized in that it is provided with a fan driven by a BLDC motor to blow the air sucked in the room to the outside.
The method of claim 3,
The fan directions of the suction module and the exhaust module are symmetrical to each other
A movable negative pressure device, characterized in that the suction module and the discharge module are further provided with a blocking damper for blocking external air in a state in which the negative pressure device is stopped.

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