WO2017179743A1

WO2017179743A1 - Air purifier

Info

Publication number: WO2017179743A1
Application number: PCT/KR2016/003817
Authority: WO
Inventors: 김보곤; 유지안; 편성래
Original assignee: 디케이산업 주식회사
Priority date: 2016-04-12
Filing date: 2016-04-12
Publication date: 2017-10-19

Abstract

The present invention relates to an air purifier in which a filter tray enabling a filter to be more simply inserted into and withdrawn from the air purifier is provided, a roll filter comprising a plurality of filter sections and rotatably provided in the filter tray is added, and the roll filter is connected to a device control unit so as to control the position thereof, thereby increasing user convenience. In addition, provided is the air purifier including a display unit for displaying a filter replacement time such that maintenance and repair work is facilitated.

Description

air cleaner

The present invention relates to an air cleaner, and more particularly, to an air cleaner that can easily replace the filter and accurately know the filter replacement time.

In general, the air cleaner 1 is shown in Figure 1, the appearance and the skeleton is formed by a clean base (2). The case 3, which shields the inside of the cleaner base 2, is screwed to each other by the screws S and bolts (not shown).

In the lower part of the case 3, an inlet 4 through which air is sucked into the clean base 2 is formed in communication with the inside of the clean base 2. A discharge port 5 through which air is discharged is formed on the clean base 2. A blowing fan (F) for circulating the air so that the air is sucked through the suction port (4) and discharged to the discharge port (5) is installed inside the clean base (2).

In addition, a plurality of filters, such as an antibacterial filter, a deodorizing filter, a hepa filter, etc., remove the foreign substances and contaminants such as dust and bacteria contained in the inhaled air, inside the clean main body 2 adjacent to the suction port 4. (6) are screwed together.

If the filter 6 used in the air cleaner 1 configured as described above continues to be used in a contaminated state, the air may be contaminated, and thus should be replaced periodically. In this case, in order to replace the contaminated filter 6, the filter 6 installed inside the clean main body 2 must be separated, and the clean main body 2 and the case 3 must be separated first. That is, the case 3 is first removed from the clean base 2 using a dedicated tool such as a driver (not shown), and then the filter 6 is sequentially removed and cleaned or replaced with a new filter. Afterwards, the case 3 is screwed to the clean base 2 again.

In this way, the filter cleaning and replacement work requires a dedicated tool for removing the bolt or screw (S), not only cumbersome work, but also need to be cleaned or replaced periodically, the problem is that efficiency is reduced.

In addition, in order to check the contamination state of the filter 6 for proper replacement of the filter 6, the case 3 must be separated from the clean base 2 and the user must identify it with the naked eye. In addition, unnecessary filter replacement can often occur because it is often difficult to identify with the naked eye.

In order to solve such a problem, as disclosed in the previously disclosed Patent Application No. 2002-0063744, the total operation time of the air cleaner is calculated to display the remaining life of the filter and the time of replacement, but when used in a high pollution place Although the life of the filter is considerably shorter than when used in a low pollution level, the air purifier operates in a contaminated state without recognizing the replacement of the filter due to the remaining life indication of the same filter. A problem that causes you to lose occurs.

Therefore, there is a need for an air cleaner that can easily replace the filter and know exactly when to replace the filter.

The present invention has been invented to improve the above problems, the problem to be solved by the present invention, the filter tray which is slidably drawn to the inside and outside of the air cleaner so that the filter can be easily withdrawn from the air cleaner. By providing, the air cleaner which can perform the maintenance and repair work of an air cleaner smoothly is provided.

Another object of the present invention is to measure the difference between the reference pressure value and the discharge pressure in the air cleaner is a LED that indicates the filter replacement time when a certain amount or more, the air cleaner can visually accurately check whether the filter contamination To provide.

Technical problem of the present invention is not limited to those mentioned above, another technical problem that is not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, according to an air cleaner according to an embodiment of the present invention, a coupling space is formed at one side thereof, and a blowing fan is rotatably installed so that air is sucked into the coupling space from the outside, and the coupling space is provided. And a discharge port through which the air sucked into the air is discharged, and a pair of guide rails extending inwardly from an inlet of the coupling space on both sides of an inner surface of the coupling space; A filter tray having a filter storage space formed therein and having a guide formed at a position corresponding to the guide rail so as to be slidably withdrawn from the coupling space along the guide rail; Filter units each installed in the filter storage space of the filter tray and configured to filter out harmful substances of air sucked by the rotation of the blower fan; And locking means for locking the filter tray in a state in which the filter tray is prevented from sliding.

The locking means includes a locking protrusion formed to protrude from the edge of the filter tray, and a hook jaw formed to protrude from an inner surface of the clean base body to hang the hook, and the hook jaw is formed on an outer surface of the hook jaw. It is characterized in that the buffer member for protecting.

The locking means is characterized in that it is composed of a magnet member which is provided at positions corresponding to the inner surface of the coupling space and the filter tray facing the inner surface of the coupling space and fixed to each other by magnetism.

The locking means is a pair of hook hooks, which are formed to be spaced apart from each other in a cantilever shape from the inner surface of the clean main body facing the filter tray by a hook protrusion formed in a direction facing each other at the front end and the hook hooks. It consists of a hook piece protruding from one surface of the filter tray facing each other, the engaging projection is formed on the hook projection to the front end, an elastic member is provided between the inner surface of the clean base and the filter tray is the filter tray It provides an elastic force in a direction away from the clean base.

The guide rail is formed to be inclined downward from the inlet of the coupling space toward the inside, the guide is formed at a position corresponding to the guide rail, characterized in that the filter tray is moved into the coupling space by its own weight do.

The locking means may include a latch body formed on an inner surface of the clean main body facing the filter tray, a latch part configured to be latchably coupled from the latch body, and the filter tray facing the latch part. It protrudes in a cantilever shape from one surface, characterized in that the latch is configured as a hook hook to selectively hook.

The clean base body is installed between the filter unit and the discharge port, a pressure sensor for measuring and outputting the pressure of the air discharged through the filter unit, and a storage for storing a reference pressure value for determining the replacement time of the filter unit The display means for notifying outside of the replacement time of the filter unit, and comparing the measured pressure value in the pressure sensor with the reference pressure value stored in the storage unit and outputs a filter exchange signal to the display means when the difference is more than a predetermined value. The control unit further comprises.

The display means is an LED, characterized in that the color is changed according to the determination of the controller.

At least one of the plurality of filter units is a roll filter rotatably installed in the filter tray and configured to perform a same function, and the filter section of the roll filter is connected to the roll filter. The position is controlled by the device control unit.

An outer surface of the clean basic body is electrically connected to the apparatus control unit, characterized in that the display unit provided to select any one of the filter section of the filter filter of the roll filter is installed.

The roll filter is wound around a pair of rollers rotatably installed in the filter tray, and the roller is electrically connected to the apparatus control unit and is connected to a driving motor for transmitting a driving force to the roller.

Each of the plurality of filter sections is provided with a contact unit, and the filter tray is provided with a sensing means for detecting the filter section of the roll filter in contact with the contact unit and the number of contact with the contact unit. .

Specific details of other embodiments are included in the detailed description and the drawings.

According to an air cleaner according to an embodiment of the present invention, the filter is installed in a filter tray slidably drawn out of the air cleaner so as to be easily withdrawn from the air cleaner, thereby maintaining and repairing the air cleaner. There is an effect that can smoothly.

In addition, according to the air purifier according to an embodiment of the present invention, by measuring the difference between the reference pressure value and the discharge pressure in the air cleaner, if the predetermined amount or more, the filter by the naked eye through the color change of the LED to indicate the replacement time of the filter Since the replacement timing can be known accurately, the filter can be replaced at the appropriate time to keep the indoor environment more comfortable.

In particular, according to the air purifier according to an embodiment of the present invention, the roll filter that the filter section is variable according to a predetermined period is installed, so that the user can change to the function of the new filter having the same function without having to replace the filter directly. Therefore, the user's convenience and indoor environment can be maintained more comfortably.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a cross-sectional view showing the configuration of an air cleaner according to the prior art.

2 is an exploded perspective view showing a part of an air cleaner according to an embodiment of the present invention.

3 is a cross-sectional perspective view showing the main part configuration of an embodiment of the present invention.

4 is a cross-sectional view showing the main part structure of another embodiment of the present invention.

4A is an operation state diagram showing an operation of still another embodiment of the present invention.

5 is a cross-sectional view schematically showing a locking means of the air cleaner according to another embodiment of the present invention.

6 is a cross-sectional view schematically showing a locking means of the air cleaner according to another embodiment of the present invention.

6A is an operation state diagram showing an operation of still another embodiment of the present invention.

7 is a block diagram illustrating the operation of the pressure sensor of the air cleaner according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings such that those skilled in the art may easily implement the present invention.

In describing the embodiments, descriptions of technical contents which are well known in the technical field to which the present invention belongs and are not directly related to the present invention will be omitted. This is to more clearly communicate without obscure the subject matter of the present invention by omitting unnecessary description.

For the same reason, in the accompanying drawings, some components are exaggerated, omitted or schematically illustrated. In addition, the size of each component does not fully reflect the actual size. The same or corresponding components in each drawing are given the same reference numerals.

2 is a perspective view of an air purifier according to an embodiment of the present invention.

As shown in FIG. 2, the appearance and skeleton of the air cleaner 10 are formed by the clean base 11. The main body 11 is formed in a substantially hexahedral shape, at least one surface of which is formed of a transparent material having an inside view. This is to allow the user to directly check the pollution degree of the filter unit 50 to be described below.

A coupling space 12 is formed inside the clean base 11. The coupling space 12 is formed to be opened to one side of the clean base 11. The coupling space 12 is a portion to which the filter tray 20 to be described below is coupled.

As shown in Figure 1, the discharge port 13 is formed on the upper portion of the clean base (11). The discharge port 13 is a portion through which the air sucked into the coupling space 12 escapes to the outside of the clean base 11.

The blowing fan F is rotatably installed in the coupling space 12. The blower fan F circulates air so that air is sucked into the coupling space 12 from the outside and discharged to the discharge port 13.

Guide rails 15 are provided at both sides of the inner surface of the coupling space 12. The guide rail 15 is formed to extend inward from the inlet of the coupling space 12. The guide rail 15 is a portion into which the guide 24 of the filter tray 20 to be described below is inserted.

As shown in FIG. 3, a pair of hooking jaws 17 are formed on the inner surface of the coupling space 12 so as to be spaced apart from each other at predetermined positions at positions corresponding to both sides of the filter tray 20 to be described below. . The hanger 17 is formed to protrude in a direction perpendicular to the coupling direction of the filter tray 20. The hooking jaw 17 is a portion on which the engaging protrusion 28 of the filter tray 20 to be described below is hooked, and serves to fix the filter tray 20 to the clean base 11.

As shown in FIG. 3, the shock absorbing member 18 is provided on an outer surface of the hanger 17. The shock absorbing member 18 serves to prevent the locking protrusion 28 of the filter tray 20 to be described below from being damaged in the process of being hooked on the hooking jaw 17. The buffer member 18 is preferably molded of an elastic material such as rubber.

As shown in FIG. 2, the filter tray 20 is coupled to the coupling space 12. The filter tray 20 is formed in a shape corresponding to the interior of the coupling space (12).

The filter storage space 22 is formed inside the filter tray 20. The filter storage space 22 is a portion in which the filter unit 50 and the roll filter 60 to be described below are installed.

As shown in FIG. 3, a pair of fixed ribs 23 are provided on both sides of the inner surface of the filter storage space 22 at a predetermined distance. The fixed rib 23 extends in the direction in which the filter unit 50 and the roll filter 60 to be described below are inserted. The fixing rib 23 is in contact with both ends of the filter unit 50 to fix it.

As shown in FIG. 2, guides 24 are formed at positions corresponding to the guide rails 15 on both sides of the filter tray 20. The guide 24 is formed to extend in the direction in which the guide rail 15 is coupled. The guide 24 is a portion guided along the guide rail 15 to allow the filter tray 20 to be slidably drawn out of the coupling space 12.

In this embodiment, the guide rail 15 and the guide 24 are formed in a direction parallel to the direction in which the filter tray 20 is coupled to the coupling space 12, but is not necessarily limited thereto. For example, as shown in FIG. 4, the guide rail 15 ′ is formed to be inclined downward from the inlet of the coupling space 12, and the guide 24 ′ is the guide rail 15 ′). It may be formed in a position corresponding to the. In this case, the filter tray 20 may be moved into the coupling space 12 by its own weight.

As shown in FIG. 4, the filter tray 20 facing the inner surface of the coupling space 12 and the inner surface of the coupling space 12 is provided with a magnet member M at a corresponding position. In this case, as shown in FIG. 4A, since the filter tray 20 and the clean main body 11 are fixed to each other by magnetism, the filter tray 20 is arbitrarily separated from the clean main body 11. Is prevented. In the present exemplary embodiment, the magnet member M is provided in the cleaning main body 11 and the filter tray 20 having the guide rail 15 'and the guide 24' which are formed to be inclined downward, but are not limited thereto. no.

As shown in FIG. 1, a suction port 26 is formed in front of the filter tray 20. The suction port 26 is a portion where air is sucked in from the outside by the blowing fan F. That is, the air sucked through the suction port 26 passes through the filter unit 50 to be described below in order.

As shown in FIG. 3, the locking protrusions 28 protrude from the upper sides of the filter trays 20. The locking projections 28 are formed at positions corresponding to the hooking jaw 17, respectively, and are hooked to the hooking jaw 17. The locking protrusion 28 serves to prevent the filter tray 20 from being arbitrarily separated in a state in which the filter tray 20 is coupled to the coupling space 12.

As shown in FIG. 2, a handle 29 is formed at one front side of the filter tray 20. The handle 29 is formed concave from one surface of the filter tray 20. The handle 29 is a part which a user grips directly to separate the filter tray 20 from the clean body 11.

On the other hand, Figure 5 is a cross-sectional view schematically showing a locking means of the air cleaner according to another embodiment of the present invention. Here, the configuration that is not shown in Figure 5 is the same configuration as the embodiment of the present invention, see Figures 1 to 3.

As shown in FIG. 5, a pair of hook hooks 30 are formed on the inner surface of the cleaning main body 11 facing the filter tray 20 so as to be spaced apart from each other by a predetermined distance. The hook hook 30 has a cantilever shape, and a hook protrusion 31 is formed at a front end thereof in a direction facing each other. The hook protrusion 31 is a portion on which the hook protrusion 35 of the hook piece 33 to be described below is hooked.

The hook piece 33 is formed to protrude from one surface of the filter tray 20 facing the hook hook 30. At the tip of the hook piece 33, a hooking protrusion 35 is hooked to the hooking protrusion 31. The locking protrusion 35 is interposed between the hook protrusions 31 to prevent the filter tray 20 from being arbitrarily separated from the cleaning base body 11. In this embodiment, the hook hook 30 is formed on the clean base 11, the hook piece 33 is formed on the filter tray 20, but is not necessarily limited thereto. For example, the hook hook 30 may be formed in the filter tray 20 and the hook hook 30 may be formed in the filter tray 20.

As shown in FIG. 5, an elastic member 37 is provided between the inner surface of the clean main body 11 on which the hook hook 30 is positioned and the filter tray 20. The elastic member 37 is fixed to any one side of the inner surface of the clean base 11 and the filter tray 20. The elastic member 37 provides an elastic force in a direction opposite to the direction in which the filter tray 20 is coupled to the clean base 11. That is, the elastic member 37 is in a state in which the filter tray 20 is pressed in a state in which the filter tray 20 is coupled to the inside of the clean main body 11, and the user moves the filter tray 20 from the clean main body 11. When separating, the filter tray 20 serves to provide an elastic force in a direction away from the clean base 11 so that the user can easily separate the filter tray 20 from the clean base 11. .

On the other hand, Figure 6 is a cross-sectional view schematically showing a locking means of the air cleaner according to another embodiment of the present invention. Here, the configuration that is not shown in Figure 6 is the same configuration as the embodiment of the present invention, see Figures 1 to 3.

As shown in FIG. 6, a latch unit 40 is installed on an inner surface of the clean main body 11 facing the filter tray. The latch portion 40 is composed of a latch body 41 fixed to the inner surface of the clean base 11 and a latch 43 coupled to the latch body 41 to be retractable. The latch 43 is selectively engaged with the hook hook 45 to be described below to serve to fix the filter tray 20 to the clean base 11. The latch 43 is connected to the latch body 41 by an elastic member (not shown). Since the configuration of the latch portion 40 is already well known, a detailed description thereof will be omitted.

A hook hook 45 is formed on one surface of the filter tray 20 facing the latch unit 40. The hook hook 45 is formed to protrude in a cantilever shape from one surface of the filter tray 20. The hook hook 45 is a part of the latch 43 of the latch portion 40 selectively hooked. More specifically, as shown in FIG. 6A, the latching hook 45 is latched by the latch 43 of the latch portion 40 so that the filter tray 20 is arbitrarily separated from the clean body 11. It prevents it from becoming. In this embodiment, the hook hook 45 is formed in the filter tray 20, the latch portion 40 is formed in the clean base 11, but is not necessarily limited thereto. For example, the latch unit 40 may be formed in the filter tray 20, and the hook hook 45 may be formed in the clean main body 11.

As shown in FIG. 1, the filter housing 50 of the filter tray 20 includes a plurality of filter units 50. Both ends of the filter unit 50 are inserted along the fixing ribs 23 and fixed to the filter storage spaces 22, respectively. The filter unit 50 is preferably formed to filter out contaminants in stages according to the characteristics and particles of the contaminants contained in the outside air passing through the suction port 26 when the blower fan F is operated. . For example, the filter unit 50 according to an embodiment of the present invention may be formed of various types of filters, such as a pretreatment filter 50a, a hepa filter 50b, and a photocatalyst filter 50c.

The pretreatment filter 50a may be configured using an antibacterial material, and is installed at a position adjacent to the suction port 26 of the filter tray 20. The pretreatment filter 50a is a filter that can remove dust or pet hair of medium size not filtered by the roll filter 60 to be described below.

Next, the HEPA filter 50b is 0.3 micron of particulate matter and harmful substances such as harmful house dust, mites, viruses, molds, and the like contained in the outside air that are not filtered while sequentially passing through the roll filter 60 and the pretreatment filter 50a. It is a filter that can remove the dirt of size cleanly.

Next, the photocatalyst filter 50c is a photocatalyst which decomposes the decontamination decontamination in the air by pollutants, odors and adsorption in the air by a light source radiated from the outside. The edge of the photocatalyst filter 50c is preferably provided with a light source for inducing a photocatalytic reaction.

In one embodiment of the present invention, the filter type used in the filter unit 50 is not limited to the pretreatment filter 50a, the hepa filter 50b, and the photocatalyst filter 50c, as described above. Various types of filters can be used.

On the other hand, as shown in Figure 2, the roll filter 60 is rotatably installed between the suction port 26 and the pretreatment filter (50a). The roll filter 60 is configured in a mesh shape using an antibacterial material. The roll filter 60 is a filter capable of removing large dust, mold, hair, pet hair, and the like contained in the outside air sucked into the interior of the clean base 11 by the blowing fan F. . Since the roll filter 60 is a filter in which air coming from the inlet 26 meets for the first time, contamination is first, and a filter that needs to be replaced more frequently than other filters.

The roll filter 60 is composed of a plurality of

filter sections

60a, 60b, 60c performing the same function. The

filter section

60a, 60b, 60c may be varied according to a user's arbitrary operation or a period preset by an apparatus controller (not shown) connected to the roll filter 60. It is a member that can be changed to a function of a new filter having the same function.

The

filter sections

60a, 60b, 60c are provided with

contact units

62a, 62b, 62c, respectively. The

contact units

62a, 62b, and 62c are portions detected by the sensing means 66 provided in the filter tray 20.

As shown in FIG. 2, both ends of the roll filter 60 are wound around a pair of first rollers 63a and second rollers 63b, respectively. The first roller 63a and the second roller 63b are positioned to be spaced apart from each other by a predetermined distance. The roll filter 60 may be wound around the first roller 63a and wound around the second roller 63b according to the rotational direction of the first roller 63a and the second roller 63b. have.

The first roller 63a is connected to a drive motor 65 electrically connected to the apparatus control unit to be described below to transmit driving force to the first roller 63a and the second roller 63b. In this embodiment, the driving motor 65 is connected to the first roller 63a but may be connected to the second roller 63b.

On the other hand, the detection means 66 is provided below the filter tray 20. The sensing means 66 is a part for sensing the

contact units

62a, 62b, 62c of the roll filter 60. The detection means 66 detects the

contact units

62a, 62b, and 62c and detects whether the

filter sections

60a, 60b, and 60c of the roll filter 60 are in the correct positions. The sensing means 66 is preferably a magnetic sensor operated by the contact of the contact unit (62a, 62b, 62c).

An apparatus control unit (not shown) is provided inside the filter tray 20 adjacent to the roll filter 60. The device controller may be electrically connected to the driving motor 65 to control the rotational speed and the rotational direction of the driving motor 65. Accordingly, the device control unit is located between the suction port 26 and the filter unit 50 through the contact recovery between the sensing unit 66 and the

contact unit

62a, 62b, 62c. The

filter sections

60a, 60b, 60c can be adjusted.

In addition, the device control unit is preferably electrically connected to the display unit 67 to select the filter section (60a, 60b, 60c) of the roll filter (60). The display unit 67 is preferably located on the outer surface of the clean base 11. The display unit 67 may be provided with a plurality of buttons (not shown) for selecting the

filter sections

60a, 60b, and 60c.

Meanwhile, as shown in FIG. 2, a pressure sensor 70 is installed between the filter unit 50 and the discharge port 13. The pressure sensor 50 serves to measure and output the pressure of air passing through the filter unit 50 and the roll filter 60 toward the discharge port 13.

Figure 7 is a block diagram for explaining the operation of the pressure sensor of the air cleaner according to an embodiment of the present invention. As shown in FIG. 7, the pressure sensor 70 includes a storage unit 72 storing a reference pressure value for determining an exchange time of the pressure sensor 50 and an exchange time of the filter unit 50. LED 74 for notifying the outside, and compares the measured pressure value in the pressure sensor 70 and the reference pressure value stored in the storage unit 72 and if the difference is a predetermined value or more the filter replacement signal to the LED (74) It is connected to the control unit 76 outputting. At this time, the set pressure value is set to the discharge pressure value of the filter unit 50 detected by the pressure sensor 70 during the initial operation of the air cleaner 10.

In the first operation of the air cleaner 10 or the first operation after the replacement of the filter unit 50, the pressure sensor 70 detects a pressure value of air passing through the filter unit 50 to control the controller 76. Will output The controller 76 stores the pressure value detected by the pressure sensor 70 in the storage unit 72 as a set pressure value during the first operation. Thereafter, the controller 76 calculates a pressure value difference between the pressure value detected by the pressure sensor 70 and the set pressure value stored in the storage unit 72, and the pressure value difference is stored in the storage unit 72. It is determined whether it is out of the stored set pressure range.

When the pressure value difference is out of the set pressure range, the controller 76 determines that the filter is replaced, and generates a filter replacement signal. And the filter exchange signal of the control unit 76 is transmitted to the LED 74 to inform the user in color. For example, when the filter replacement is not necessary, the LED 74 maintains a green color and then turns orange when the filter replacement signal is received from the controller 76. In the present embodiment, the LED 74 is installed on the outer surface of the clean base 11, not only can accurately determine the state of the filter unit 50, but also can be used as lighting.

Next, the operation of the air cleaner according to an embodiment of the present invention will be described.

First, the user first checks the state of the filter unit 50 before operating the air cleaner 10. To this end, the user grasps the handle 29 of the filter tray 20 and pulls it in a direction away from the coupling space 12 of the clean base 11, that is, in the direction of arrow A shown in FIG. 2. In this case, the engaging projection 28 of the filter tray 20 is out of the hooking jaw 17 of the clean base 11, the guide 24 of the filter tray 20 is the clean base 11 It moves along the guide rail (15) of.

After separating the filter tray 20 from the clean main body 11 as described above, after checking the filter unit 50 installed in the filter tray 20 to check whether there are filters necessary for replacement, the filter tray 20 ) Is pushed back into the coupling space 12 of the clean base 11.

In this case, the guide 24 of the filter tray 20 is moved into the coupling space 12 along the guide rail 15 of the clean main body 11, and the obstacle of the filter tray 20. The flag 28 is fixed to the hanging jaw (18). In this state, the filter tray 20 can be prevented from being arbitrarily separated from the clean base 11.

In this way, the user can easily separate the filter tray 20 from the clean base 11 without a separate work tool, so that the maintenance and repair of the air cleaner 10 can be smoothly performed.

And even if the user does not remove the filter tray 20 from the clean base 11, the difference between the reference pressure value and the discharge pressure in the air purifier 10 is measured to display the replacement time of the filter when a certain amount or more Through the color change of the LED 74, it is possible to know exactly when to replace the filter with the naked eye. In this way, the user can replace the filter at an appropriate time, thereby keeping the indoor environment more comfortable.

In particular, by installing the roll filter 60 in which the

filter sections

62a, 62b, and 62c are variable according to a predetermined period, the user can change to a function of a new filter having the same function without having to replace the filter directly. User convenience can be increased.

On the other hand, in the present specification and drawings have been described with respect to preferred embodiments of the present invention, although specific terms are used, it is merely used in a general sense to easily explain the technical details of the present invention and to help the understanding of the invention, It is not intended to limit the scope of the invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

Since the filter can be withdrawn from the air cleaner more simply, it can be used in the field related to the manufacture of the air cleaner.

Claims

A coupling space having one side opening is formed, a blowing fan is rotatably installed so that air is sucked into the coupling space from the outside, a discharge port for discharging air sucked into the coupling space is formed, and both sides of the inner surface of the coupling space. A clean base body having a pair of guide rails extending inwardly from an inlet of the coupling space;

A filter tray having a filter storage space formed therein and having a guide formed at a position corresponding to the guide rail so as to be slidably withdrawn from the coupling space along the guide rail;

Filter units each installed in the filter storage space of the filter tray and configured to filter out harmful substances of air sucked by the rotation of the blower fan; And

And a locking means for locking the filter tray in a state where sliding is prevented on the clean main body.
The method of claim 1,

The locking means,

Hanging projections are formed to protrude to the edge of the filter tray, respectively;

It is formed to protrude on the inner surface of the main body of the clean consists of a hook jaw hang the projection,

The outer surface of the hanger jaw is characterized in that the cushioning member for protecting the hanger is provided.
The method of claim 1,

The locking means,

And a magnet member provided at a position corresponding to each of the inner side of the coupling space and the filter tray facing the inner surface of the coupling space and fixed to each other by magnetism.
The method of claim 1,

The locking means,

A pair of hook hooks which are formed to be spaced apart from each other in a cantilever shape from an inner surface of the clean main body facing the filter tray by a hook protrusion formed in a direction facing each other at a distal end;

It is composed of a hook piece protruding from one surface of the filter tray facing the hook hook, the hook projection is formed on the hook projection to the front end,

An elastic member is provided between an inner surface of the clean main body and the filter tray to provide an elastic force in a direction away from the clean main body.
The method of claim 1,

The guide rail is formed to be inclined downward from the inlet of the coupling space toward the inside, the guide is formed at a position corresponding to the guide rail, characterized in that the filter tray is moved into the coupling space by its own weight Air cleaner.
The method of claim 1,

The locking means,

A latch body comprising a latch body installed on an inner surface of the clean main body facing the filter tray, and a latch coupled to the filter body to be retractable from the latch body;

And a latching hook that protrudes in a cantilever shape from one surface of the filter tray facing the latch portion to selectively latch the latch.
The method of claim 1,

The clean base is,

A pressure sensor installed between the filter part and the discharge port and configured to measure and output a pressure of air discharged through the filter part;

A storage unit for storing a reference pressure value for determining an exchange time of the filter unit;

Display means for notifying outside of the filter unit replacement time, and

And a control unit for comparing the measured pressure value in the pressure sensor with a reference pressure value stored in the storage unit and outputting a filter change signal to the display means when the difference is greater than or equal to a predetermined value.
The method of claim 7, wherein

The display means is an LED, the air cleaner, characterized in that the color is changed according to the determination of the controller.
The method of claim 1,

At least one of the plurality of filter units is a roll filter rotatably installed in the filter tray and configured to perform a same function, and the filter section of the roll filter is connected to the roll filter. Air purifier, characterized in that the position is controlled by the device control unit.
The method of claim 9,

And an indication unit electrically connected to the apparatus control unit and provided to select one of the filter sections of the roll filter.
The method of claim 10,

The roll filter is wound around a pair of rollers rotatably installed in the filter tray, and the roller is electrically connected to the device control unit and is connected to a drive motor for transmitting a driving force to the roller. Purifier.
The method of claim 11,

Each of the plurality of filter sections is provided with a contact unit, wherein the filter tray is provided with a sensing means for detecting the filter section of the roll filter in contact with the contact unit according to the number of contact with the contact unit. air cleaner.