KR20230032836A - Air purifier using the plasma discharge - Google Patents

Abstract

One embodiment of the present invention provides an air purifier which comprises: a main body module sterilizing introduced air by using plasma; an arm module coupled to one side of the main body module where the air is introduced and having a passage unit connected to the main body module and a target sterilization unit connected to the passage unit to suck air of a target area; and a flow generation module coupled to the other side of the main body module where the air is leaked and connected to the main body module to generate a flow of the air. The arm module has a structure enabling the target sterilization unit to be selectively disposed at a first position on one side of the main body module or a second position other than the first position.

Description

Air purifier using the plasma discharge}

The present invention relates to an air purifier using a plasma discharge, and more particularly, to an air purifier using a plasma discharge capable of sterilizing a local target area or a space area using a plasma discharge.

An air purifier refers to a device that purifies polluted air and turns it into fresh air, and sucks polluted air with a fan to collect fine dust or germs through a filter.

These air purifiers have recently been required not only to filter fine dust or bacteria by a filter, but also to sterilize microorganisms such as bacteria and various bacteria contained in the air. To this end, a method of sterilizing microorganisms in the air using ultraviolet rays (Ultra Violet) in an air purifier has been proposed.

However, when microorganisms are sterilized by using ultraviolet light, the structure of the air purifier is inevitably limited due to the harmfulness of ultraviolet light to the human body, and there is a problem in that it is difficult to identify whether or not the sterilization is progressing from the outside.

The technical problem to be achieved by the present invention is that sufficient sterilization can be achieved through a discharge space through which air can flow in and out, whether or not sterilization is progressing can be identified from the outside, and a local target area or space area can be sterilized using plasma discharge. It is to provide an air purifier using a plasma discharge.

In one embodiment of the present invention, a main body module for sterilizing incoming air using plasma, coupled to one side of the main body module through which air is introduced, a passage part communicating with the main body module, and a target communicating with the passage part An arm module including a target sterilization unit that sucks in air from an area and a flow generating module coupled to the other side of the main body module through which air flows out and communicating with the main body module to generate air flow, the arm module comprising: Provided is an air purifier having a structure in which the target sterilization unit can be selectively disposed at a first position on one side of the body module or at a second position other than the first position.

In one embodiment of the present invention, the arm module may include a first arm rotatably connected to the main body module, and the passage portion may be formed along the inside of the first arm.

In one embodiment of the present invention, the first arm may be made of a flexible material.

In one embodiment of the present invention, the arm module further includes a second arm, one side of which is rotatably connected to the other side of the first arm, and the target sterilization unit is disposed on the other side, and wherein the passage unit is the first arm. It may be formed along the inside of the first arm and the second arm.

In one embodiment of the present invention, the body module, a discharge unit forming a discharge space therein, disposed on one side of the discharge unit, filtering the air flowing into the discharge unit and forming a differential pressure in the discharge space It may include a differential pressure filter unit and a body electrode unit for applying a voltage for generating a plasma discharge in the discharge space to the discharge space.

In one embodiment of the present invention, an outer housing forming an exterior and disposing the body module and the flow generating module therein is further included, and an inlet through which external air flows into the discharge space is formed in the outer housing. It can be.

In one embodiment of the present invention, the inlet may be opened when the passage part does not communicate with the body module, and may be closed when the passage part communicates with the body module.

In one embodiment of the present invention, the outer housing further includes a first flow path portion forming a path through which air flows from the inlet into the discharge space, and the differential pressure filter unit is disposed between the first flow path portion and the discharge unit. can be placed in

In one embodiment of the present invention, the first flow path portion may be formed in a shape surrounding the discharge portion.

In one embodiment of the present invention, the discharge part and the first flow path part may be made of a material through which light is transmitted.

In one embodiment of the present invention, the body electrode unit may apply a voltage determined according to a conductance of air flow inside the discharge unit to the discharge space.

In one embodiment of the present invention, the arm module may be formed to be replaceable with respect to the body module.

In one embodiment of the present invention, the passage portion is not in communication with the body module when the target sterilization unit is disposed above the body module, and communicates with the body module when the target sterilization unit is spaced apart from the top of the body module. can

Air purifiers using plasma discharge according to embodiments of the present invention can effectively sterilize and discharge external air through plasma discharge, and can give reliability to users because such a sterilization process can be confirmed from the outside.

In addition, the air purifier using plasma discharge according to embodiments of the present invention may perform both sterilization of the target area and sterilization of the surrounding space area, or may selectively perform the sterilization. At this time, in the air purifier using plasma discharge according to embodiments of the present invention, the user can easily switch between sterilizing the target area and sterilizing the surrounding space through the arm module.

In addition, the air purifier using plasma discharge according to the embodiments of the present invention is driven according to the environmental information of the plasma discharge space, so that reliable and stable sterilization ability can be implemented. In addition, the air purifier using plasma discharge according to embodiments of the present invention can quickly sterilize air by generating a rapid air flow by controlling the pressure in the discharge space through the exhaust unit.

1 is a perspective view schematically showing an air purifier according to an embodiment of the present invention.
3 and 4 are cross-sectional views for explaining the operation of the air purifier 5 of FIGS. 1 and 2 .
5 is a cross-sectional view showing a part of an air purifier according to another embodiment.
6 is a diagram for explaining a method of operating the arm module.
7 is a perspective view schematically illustrating an air purifier according to another embodiment.
8 is a view for explaining a switch unit of an air purifier according to an embodiment of the present invention.

Hereinafter, the following embodiments will be described in detail with reference to the accompanying drawings, and when describing with reference to the drawings, the same or corresponding components are given the same reference numerals, and redundant description thereof will be omitted.

Since the technical idea of the present invention can be made with various changes and can have various embodiments, specific embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the technical spirit of the present invention to specific embodiments, and should be understood to include all modifications, equivalents, or substitutes included in the scope of the technical spirit of the present invention.

In describing the technical idea of the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, numbers (eg, first, second, etc.) used in the description process of this specification are only identifiers for distinguishing one component from another component.

In addition, in this specification, when one component is referred to as “connected” or “connected” to another component, the one component may be directly connected or directly connected to the other component, but in particular Unless otherwise described, it should be understood that they may be connected or connected via another component in the middle.

In addition, terms such as "~ unit", "~ group", "~ character", and "~ module" described in this specification mean a unit that processes at least one function or operation, which includes a processor, a micro Processor (Micro Processor), Micro Controller, CPU (Central Processing Unit), GPU (Graphics Processing Unit), APU (Accelerate Processor Unit), DSP (Drive Signal Processor), ASIC (Application Specific Integrated Circuit), FPGA (Field Programmable Gate Array), etc., or a combination of hardware and software, or may be implemented in a form combined with a memory storing data necessary for processing at least one function or operation. .

In addition, it is intended to make it clear that the classification of components in this specification is merely a classification for each main function in charge of each component. That is, two or more components to be described below may be combined into one component, or one component may be divided into two or more for each more subdivided function. In addition, each component to be described below may additionally perform some or all of the functions of other components in addition to its main function, and some of the main functions of each component may be performed by other components. Of course, it may be dedicated and performed by .

1 and 2 are perspective views schematically showing an air purifier 10 according to an embodiment of the present invention, and FIGS. 3 and 4 are for explaining the operation of the air purifier 10 of FIGS. 1 and 2. it is a cross section 5 is a cross-sectional view showing a part of an air purifier 10-1 according to another embodiment, and FIG. 6 is a view for explaining a method of operating the arm module 120.

The air purifier 10 according to an embodiment of the present invention is provided with a main body module 110 and a flow generating module 130 fluidly communicating with each other so that air introduced from the outside can be purified and discharged to the outside again. can In particular, the air purifier 10 according to an embodiment of the present invention includes the arm module 120 connected to the body module 110, and can locally sterilize a target area or widely sterilize a space area. .

1 to 6 , the air purifier 10 according to an embodiment of the present invention may include a body module 110, an arm module 120, and a flow generating module 130. In addition, although not shown, the air purifier 10 according to an embodiment may further include a sensor unit (not shown), a control unit (not shown), and a display unit (not shown).

The body module 110 may perform a function of purifying incoming air. The body module 110 may include a filter for purifying air. Also, as an embodiment, the body module 110 may sterilize air using plasma. Specifically, the body module 110 may include a discharge unit 111 , a differential pressure filter unit 112 , and a body electrode unit 113 .

The discharge unit 111 may form a discharge space S1 in which plasma discharge occurs. The discharge space S1 may be spaced apart from the outside so that plasma may be formed therein, and air may be sufficiently sterilized through the plasma and then discharged to the outside.

The discharge unit 111 may be made of an insulating material having a hollow therein, for example, may be made of a material such as tempered glass or quartz, but the present invention is not limited thereto. As an example, the discharge unit 111 may include a dielectric barrier layer therein. The discharge unit 111 may be made of a transmissive material, through which an external user can identify the air sterilization process.

Although not specifically shown in the drawing, when the discharge unit 111 includes a dielectric barrier layer, the dielectric barrier layer may be disposed between the first electrode 113-1 and the second electrode 113-2 described later. there is. The discharge unit 111 may perform plasma discharge using dielectric barrier discharge (DBD) through the dielectric barrier layer.

The differential pressure filter unit 112 is disposed on one side of the discharge unit 111, filters air flowing into the discharge unit 111, and forms a low pressure in the discharge space S1. Here, the low pressure means a pressure lower than the external pressure (eg, atmospheric pressure). In other words, the low pressure may refer to differential pressure, which is a pressure difference from an external space.

The differential pressure filter unit 112 may be disposed on a path through which external air flows into the discharge unit 111 . As shown in FIG. 2, when the plasma sterilization module 110 has only the discharge unit 111 and has a structure in which air flows directly into the discharge unit 111, the differential pressure filter unit 112 is one side of the discharge unit 111. (top in the drawing).

As another embodiment, as shown in FIG. 5, the air purifier 10-1 may further include an outer housing 100 forming an exterior and disposing the body module 110 and the flow generating module 130 therein. can In this case, the outer housing 100 may include a first flow path 103 forming a path T1 through which external air flows into the discharge space S1, and the differential pressure filter unit 112 may include a discharge unit ( 111) and the first passage part 103 may be disposed. In FIG. 5, one differential pressure filter unit 112 is shown as being disposed above the discharge unit 111, but is not necessarily limited thereto, and is located on a path between the discharge unit 111 and the first flow path unit 103. Of course, two or more differential pressure filter units 112 may be disposed.

The differential pressure filter unit 112 may be provided with a filter selected from at least one of a non-woven fabric filter, a sponge filter, a HEPA filter, and a ULPA filter that filters foreign substances such as distant dust contained in the air due to its compactness. The differential pressure filter unit 112 may form a differential pressure between the external space and the discharge space S1 due to the above-described density, and may maintain a low pressure in the discharge space S1 while air flows. The differential pressure filter unit 112 may have a filter replaceable structure.

The body electrode unit 113 performs a function of applying a voltage for generating a plasma discharge in the discharge space S1 to the discharge space S1. The body electrode unit 113 includes a first electrode 113-1 and a second electrode 113-2, and a plasma discharge is generated between the first electrode 113-1 and the second electrode 113-2. A pre-set high voltage may be applied for this purpose. For example, a preset high voltage may be applied to the first electrode 113-1, and the second electrode 113-2 may be grounded.

The first electrode 113-1 may be disposed on one side of the discharge space S1. As an embodiment, the first electrode 113-1 is provided on the discharge unit 111 and is formed in close contact with the discharge unit 111 without separation, so that the first electrode 113-1 and the discharge unit 111 ) can prevent parasitic discharge from occurring between The first electrode 113-1 may be formed in close contact with the discharge unit 111 by a coating process and may be made of a light-transmitting material. For example, the first electrode 113-1 may include a transparent metal oxide such as indium tin oxide (ITO).

The first electrode 113-1 may be formed along the discharge unit 111, but does not have to be formed along the entire surface of the discharge unit 111, and may be formed in a pattern partitioned at regular intervals as needed. . In one embodiment of the present invention, since the first electrode 113-1 and the discharge unit 111 are made of a light-transmitting material, the sterilization process can be identified from the outside.

The second electrode 113-2 may be spaced apart from the first electrode 113-1. As an example, the second electrode 113-2 may be spaced apart from the first electrode 113-1 and installed in the discharge space S1. For example, as shown in FIGS. 3 and 4, the second electrode 113-2 may be positioned in the central region of the discharge space S1 to uniformly form a plasma discharge in the discharge unit 111. there is.

Also, the second electrode 113-2 may form a path through which air flows out. The second electrode 113-2 may be formed in a tubular shape with a hollow inside, and may include one or more holes through which air is discharged. Air introduced into the discharge unit 111 may flow out through the second electrode 113-2.

As an embodiment, the body module 110 is disposed on a path through which air is discharged from the discharge space S1 and may further include an ozone filter unit 133 (see FIG. 5) for removing ozone in the air. can The ozone filter unit 133 (see FIG. 5 ) may filter not only ozone but also volatile organic compounds such as carbon monoxide and formaldehyde.

As another embodiment, when the inside of the second electrode 113-2 has an empty structure as shown in FIG. 5, the ozone filter unit 133 is disposed inside the second electrode 113-2, and the discharge space S1 It can remove ozone in the outflowing air.

The arm module 120 is coupled to one side E1 of the body module 110 through which air is introduced, and communicates with the passage parts P1 and P2 communicating with the body module 110 and the passage parts P1 and P2. It may include a target sterilization unit 123 that sucks air from the target area. As an example, the arm module 120 may be formed to be replaceable with respect to the body module 110 .

Here, the arm module 120 moves the target sterilization unit 123 to a first position (M1, see FIG. 6) on one side E1 of the body module 110 or to a second position M2 other than the first position M1. to M5). 1 and 3 are exemplary diagrams illustrating a case in which the arm module 120 is in a second position, and FIGS. 2 and 4 are exemplary diagrams illustrating a case in which the arm module 120 is in a first position.

The air purifier 10 may operate in a space purification mode for purifying air in a space around the body module 110 or in a target purification mode for purifying air in a target area through the arm module 120 . For example, the air purifier 10 uses the arm module 120 to purify the air in the space around the body module 110 when the target sterilization unit 123 is located at the first position M1. It can operate in space purification mode. In addition, the air purifier 10 may operate in a target purifying mode to purify the air in the target area when the target sterilization unit 123 is located at the second position (M2 to M5) using the arm module 120. there is.

As an embodiment, the arm module 120 includes a first arm 121 rotatably connected to the body module 110 at one side, and the passage portion P1 is along the inside of the first arm 121. can be formed In addition, the arm module 120 may further include a first arm 122 having one side rotatably connected to the other side of the first arm 121 and having a target sterilization unit 123 disposed on the other side. In this case, the passage parts P1 and P2 may be formed along the inside of the first arm 121 and the second arm 122 . In other words, the first arm 121 and the second arm 122 may be fluidly connected to deliver air sucked from the target sterilization unit 123 to the body module 110 .

Here, the case where the arm module 120 includes two of the first arm 121 and the second arm 122 has been described as an example, but the present invention is not limited thereto. The arm module 120 may consist of one arm or two or more arms. However, hereinafter, a case in which the arm module 120 is composed of two arms will be mainly described.

One side of the first arm 121 is connected to one side E1 of the main body module 110 and can rotate around the first rotation axis Ax1. One side of the second arm 122 is connected to one side of the first arm 121 to rotate about the second rotation axis Ax2. Through this structure, the arm module 120 may be freely manipulated such as length and angle adjustment.

The arm module 120 uses a first arm 121 and a second arm 122 rotatably provided on one side E1 of the body module 110 so that the user can selectively use the target sterilization unit 123. It may be placed in the target area or located on one side (E1) of the body module 110.

As another embodiment, the arm module 120 may further include a height adjusting means between the first arm 121 and the second arm 122 to adjust the height of the target sterilization unit 123 .

When the target sterilization unit 123 is disposed in the target area, the air purifier 10 generates a flow of air between the body module 110 and the arm module 120 communicating through a flow generating module 130 to be described later. can In other words, as shown in FIG. 3 , air in the target area may be sucked in through the target sterilization unit 123 and introduced into the discharge unit 111 of the body module 110 via the arm module 120. . The air introduced in this way may be discharged to the outside after being subjected to plasma sterilization in the discharge unit 111 .

Meanwhile, a first inlet 115 through which air is introduced separately from the arm module 120 may be formed on one side E1 of the body module 110 . At this time, the body module 110 may include an opening/closing means 119 between a path through which air is introduced from the arm module 120 and the first inlet 115 . As another embodiment, when the main body module 110 has an external housing 100 as shown in FIG. 5, a second inlet 101 through which air is introduced is further formed in the external housing 100, further circulating ambient air. By effectively inhaling, the air cleaning efficiency can be further increased.

When the target sterilization unit 123 is disposed in the target area, the opening/closing means 119 closes the path between the first inlet 115 and the body module 110 to intensively target the target area through the arm module 120. can be sterilized with

In addition, when the target sterilization unit 123 is disposed on one side E1 of the body module 110, the suction surface of the target sterilization unit 123 may be sealed by the body module 110, and the opening and closing means ( 119) may open a path between the first inlet 115 and the body module 110. Through this, the air purifier 10 may operate in a space purification mode by sucking ambient air through the first inlet 115 of the body module 110 .

In addition, the second inlet 101 of the body module 110 is opened when the target sterilizing unit 123 is located at the first position M1, and the target sterilizing unit 123 is located at the second position M2 to M5. can be closed if located in

As another embodiment, the air purifier 10 may further include a lighting unit (not shown) disposed adjacent to the target sterilization unit 123, and operates while sterilizing the target area to inform the outside of whether or not the sterilization progresses. .

As another embodiment, the target sterilization unit 123 may further include a sterilization means for locally sterilizing the target. At this time, the sterilization means may use ultraviolet (UV) or plasma discharge.

When the sterilization means uses plasma discharge, the target sterilization unit 123 may further include a space forming means (not shown) capable of forming a low pressure in a local space by contacting the target area. For example, the space forming means is formed to be coupled to the target sterilization unit 123 and may form a vacuum space in contact with the target area. The space forming means is formed of a transparent material so that the user can check the plasma discharge from the outside.

Meanwhile, the flow generation module 130 is coupled to the other side of the body module 110 through which air is discharged, and communicates with the body module 110 to generate air flow. The flow generation module 130 may include an exhaust unit 131 that exhausts air in the discharge space S1 to generate air flow. Here, the exhaust unit 131 may be a fan, a motor pump, or a blower that generates air flow.

The flow generation module 130 may further include an outlet filter unit 132 disposed on a path through which the air sterilized by the body module 110 is discharged to the outside. The outlet filter unit 132 performs a function of filtering foreign substances contained in the air once more before discharging the sterilized air to the outside, and, like the differential pressure filter unit 112, a non-woven fabric filter, a sponge filter, and HEPA It may be provided as a filter selected from at least one of a filter and a ULPA filter.

Meanwhile, as shown in FIG. 5 , the air purifier 10 may further include an outer housing 100 . As described above, the outer housing 100 forms the exterior of the air purifier 10-1, and the body module 110 and the flow generating module 130 may be disposed therein. The outer housing 100 may include a second inlet 101 through which air is introduced and an outlet 102 through which air is discharged.

At this time, the outer housing 100 has the main body module 110, in particular, the discharge unit 111 disposed in the central region, and the path T1 of air flowing from the second inlet 101 to the discharge unit 111 The first flow path portion 103 forming the may be disposed to surround the discharge portion 111 . The outer housing 100, more specifically, the first flow path 103 overlapping the discharge unit 111 is made of a light-transmitting material so that the sterilization process in the internal discharge unit 111 can be confirmed from the outside. can

The outer housing 100 may further include a second flow passage 104 forming a path T2 through which the sterilized air is discharged to the outside through the discharge space S1. The second flow path part 104 performs a function of guiding the sterilized air discharged from the discharge space S1 to pass through the exhaust part 131 directly without entering other electronic components disposed in the external housing 100. can do.

As an embodiment, as shown in FIG. 5 , the body module 110 includes a flow path of air introduced from the second inlet 101 of the body module 110 and one side of the arm module 120 or the body module 110 ( E1) may further include an upper housing 117 coupled to an upper portion of the outer housing 100 in order to distinguish a flow path of air introduced from the housing 100 . In this case, the differential pressure filter unit 112 may be disposed between the upper housing 117 and the outer housing 100 .

As an embodiment, the air purifiers 10 and 10-1 may further include a sensor unit (not shown) and a control unit (not shown).

The air purifiers 10 and 10-1 according to an embodiment of the present invention may apply a voltage determined according to the conductance of the air flow inside the discharge unit to the discharge space S1. Specifically, the magnitude of the voltage applied to the first electrode 113-1 depends on the air flow calculated according to the material of the differential pressure filter unit 112, the shape of the discharge unit 111, and the exhaust capacity of the exhaust unit 131. It can be determined by the conductance value for

The shape of the discharge space S1 and the material of the differential pressure filter unit 112 are set in advance, but the conductance value for the air flow may vary. To this end, the sensor unit (not shown) may be formed of a pressure sensor disposed adjacent to the discharge unit 111 of the body module 110 to measure a pressure value in the discharge space S1. The sensor unit (not shown) may measure the pressure value of the discharge space S1 in real time or periodically, generate a signal according to the measured pressure value, and provide the signal to the control unit (not shown).

The controller (not shown) performs a function of determining the magnitude of the voltage applied to the electrode unit 113 according to the measured pressure value. Specifically, the control unit (not shown) may calculate the voltage value to be applied to the first electrode 113-1 according to a preset algorithm when a signal according to the measured pressure value is provided from the sensor unit (not shown). .

As an example, the controller (not shown) may calculate a voltage value corresponding to the measured pressure value according to Paschen's law. According to Paschen's law, the plasma discharge initiation voltage may be a function of the product of the distance between electrodes and the pressure value. That is, the control unit (not shown) uses the pressure value measured by the sensor unit (not shown) and the previously stored distance value between the first electrode 113-1 and the second electrode 113-2 to use the first electrode The discharge initiation voltage to be applied to (113-1) can be calculated.

In addition, the controller (not shown) may also control the operation of the exhaust unit 131 of the flow generating module 130 . When the pressure value of the discharge space (S1) becomes less than a preset reference value after the exhaust unit 131 operates, that is, when a low pressure for plasma discharge is formed in the discharge space (S1), A voltage value may be calculated using the measured pressure value and controlled to be applied to the first electrode 113-1. As an example, the control unit (not shown) may control 'on' or 'off' of the electrode unit 113 to repeatedly generate and stop plasma generation.

7 is a perspective view schematically illustrating an air purifier 10-2 according to another embodiment.

Referring to FIG. 7 , an air purifier 10-2 according to another embodiment of the present invention, unlike the air purifiers 10 and 10-1 described above, uses a single first arm 121 as an arm module. (120) can be implemented.

In this case, the first arm 121 may be made of a flexible material. The first arm 121 may be made of a material capable of maintaining a deformed state while being free of deformation. Accordingly, the first arm 121 may be made of a flexible material, but may also be made of a rigid material and freely stretchable in one or two directions. For example, as shown in the drawing, the first arm 121 may be formed of a tube having a bellows structure so as to be freely deformable.

Like the air purifier 10 according to another embodiment, the air purifier 10-2 according to another embodiment allows the user to freely manipulate the arm module 120, and by using this, the target area or the space area can be selected for sterilization.

8 is a view for explaining the switch unit 150 of the air purifier 10 according to an embodiment of the present invention.

The air purifier 10 according to an embodiment of the present invention may further include a switch unit 150 for receiving an input signal from a user. The switch unit 150 may be disposed on the body module 110 and may perform a user interface function of receiving an operation signal for controlling the operation of the air cleaner 10 . The switch unit 150 may be disposed on the body module 110 using a touch type display.

As another embodiment, referring to FIG. 8 , the switch unit 150 may be disposed on one side of the flow generating module 130, that is, on the lower surface 130E of the flow generating module 130. At this time, the switch unit 150 may have a non-contact structure in which an operation signal is received only by a user's motion without a touch.

The switch unit 150 may be provided with one or more motion sensors, and the user may operate the air purifier 10 by moving his/her hand to the space between the lower surface 130E of the flow generating module 130 and the pedestal 109. can make it work.

At this time, the switch unit 150 may further include one or more light elements, and when an operation signal is detected, the light element may be selectively turned on according to the detected operation signal. Through this, the switch unit 150 may perform a function of notifying the outside that the operation mode input by the user has been selected. One or more optical elements may be disposed adjacent to the switch unit 150 and radiate light toward the pedestal 109 to notify the user of the current operating state of the air purifier 10 (FIG. 8(b)).

As described above, the air purifier using plasma discharge according to the embodiments of the present invention can effectively sterilize and discharge external air through plasma discharge, and this sterilization process can be confirmed from the outside, thereby reducing reliability to users. can

In addition, the air purifier using plasma discharge according to embodiments of the present invention may perform both sterilization of the target area and sterilization of the surrounding space area, or may selectively perform the sterilization. At this time, in the air purifier using plasma discharge according to embodiments of the present invention, the user can easily switch between sterilizing the target area and sterilizing the surrounding space through the arm module.

In addition, the air purifier using plasma discharge according to the embodiments of the present invention is driven according to the environmental information of the plasma discharge space, so that reliable and stable sterilization ability can be implemented. In addition, the air purifier using plasma discharge according to embodiments of the present invention can quickly sterilize air by generating a rapid air flow by controlling the pressure in the discharge space through the exhaust unit.

In the above, the present invention has been described in detail with preferred embodiments, but the present invention is not limited to the above embodiments, and various modifications and changes are made by those skilled in the art within the technical spirit and scope of the present invention. this is possible

10: air purifier
100: outer housing
110: body module
120: arm module
130: flow generation module

Claims (14)

A body module that purifies the incoming air;
an arm module coupled to one side of the main body module through which air is introduced and including a passage part communicating with the main body module and a target sterilizing part communicating with the passage part to suck in air from a target area; and
A flow generating module coupled to the other side of the main body module through which the purified air is discharged and communicating with the main body module to generate a flow of air; includes,
The arm module has a structure in which the target sterilization unit can be selectively disposed at a first position on one side of the body module or at a second position other than the first position, the air purifier. According to claim 1,
The air purifier,
When the target sterilization unit is located in the first position, it operates in a space purification mode for purifying the air in the space around the main body module,
When the target sterilization unit is located in the second position, the air purifier operates in a target purification mode for purifying air in the target area. According to claim 2,
An air purifier, wherein a first inlet through which external air is introduced is formed on one side of the body module. According to claim 1,
The cancer module,
A first arm having one side rotatably connected to the body module; includes,
The passage portion is formed along the inside of the first arm, the air purifier. According to claim 4,
The first arm is made of a flexible material, the air purifier. According to claim 4,
The cancer module,
A second arm, one side of which is rotatably connected to the other side of the first arm, and the target sterilization unit is disposed on the other side;
The passage portion is formed along the inside of the first arm and the second arm, the air purifier. According to claim 1,
The body module,
a discharge unit forming a discharge space therein;
a differential pressure filter unit disposed on one side of the discharge unit, filtering air flowing into the discharge unit and forming a differential pressure in the discharge space; and
An air purifier comprising a body electrode unit for applying a voltage for generating a plasma discharge in the discharge space to the discharge space. According to claim 7,
Further comprising: an outer housing forming an exterior and disposing the body module and the flow generating module therein;
An air purifier, wherein a second inlet through which external air flows into the discharge space is formed in the outer housing. According to claim 8,
The second inlet is open when the passage part is not in communication with the body module, and closed when the passage part is in communication with the body module. According to claim 9,
The outer housing further includes a first flow path portion forming a path through which air is introduced into the discharge space from the second inlet,
The air purifier, wherein the differential pressure filter unit is disposed between the first flow path unit and the discharge unit. According to claim 10,
The first flow path portion is formed in a form surrounding the discharge portion, the air purifier. According to claim 11,
The discharge part and the first flow path part are made of a material through which light passes, an air purifier. According to claim 7,
The body electrode unit applies a voltage determined according to the conductance of the air flow inside the discharge unit to the discharge space, the air purifier. According to claim 1,
The arm module is formed to be replaceable with respect to the body module, the air purifier.

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