KR20220094985A - Air Conditioner - Google Patents

Abstract

According to one embodiment of the present invention, an air conditioner is provided. According to one embodiment of the present invention, the air conditioner comprises: a case having an inlet in which air is sucked and an outlet where the air is discharged to an indoor space; a filter module disposed in the inlet to remove foreign substances in the air sucked to the inner space; and a filter cleaner removing the foreign substances adsorbed in the filter module. The filter cleaner comprises: a housing; a dust container storing the foreign substances separated from the filter module; a suction fan allowing the air to flow toward the dust container; and a sound absorption module where a plurality of holes are formed in at least a portion of a surface. A distance between a surface having the plurality of holes of the sound absorption module and the suction fan is 55% to 70% of a diameter of the suction fan, and the surface having the plurality of holes of the sound absorption module is tilted not to be perpendicular to a surface coming in contact with the filter module of the housing.

Description

Air Conditioner {Air Conditioner}

The present invention relates to an air conditioner including a filter cleaner.

An air conditioner is a device for making an indoor environment pleasant by controlling the temperature and/or humidity of indoor air or removing foreign substances such as dust from the indoor air. The air conditioner may suck in indoor air through an inlet, cool or heat the inhaled indoor air, adjust humidity of the indoor air, or remove foreign substances, and then discharge the conditioned air through an outlet.

A filter for filtering foreign substances may be disposed at the inlet of the air conditioner. Also, the air conditioner may include a filter cleaner for removing foreign substances attached to the filter.

However, in the case of the conventional air conditioner, there is a problem in that noise is generated according to the rotation of the fan inside the filter cleaner.

Republic of Korea Patent Publication No. 2019-0137219

SUMMARY OF THE INVENTION It is an object of the present invention to provide an air conditioner capable of reducing the noise of a filter cleaner.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned may be understood by the following description, and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the appended claims.

The air conditioner according to an embodiment of the present invention can reduce noise of the filter cleaner by disposing a porous surface and a porous sound-absorbing material inside the filter cleaner.

In addition, the porous surface of the filter cleaner of the air conditioner according to an embodiment of the present invention may be arranged to maintain a constant distance from the fan of the filter cleaner.

In addition, the air conditioner according to an embodiment of the present invention includes a case in which an intake port through which air is sucked into the interior space and a discharge port through which air is discharged into the interior space, is disposed at the suction port to remove foreign substances in the air sucked into the interior space. a filter module and a filter cleaner for removing foreign substances adsorbed on the filter module, wherein the filter cleaner includes a housing, a dust container for accommodating foreign substances separated from the filter module, a suction fan for flowing air in the direction of the dust container, and Including a sound-absorbing module having a plurality of holes formed on at least a portion of the surface, the distance between the surface on which the plurality of holes of the sound-absorbing module are formed and the suction fan is 55% to 70% of the diameter of the suction fan, the sound-absorbing module The surface on which the plurality of holes are formed is inclined so as not to be perpendicular to the surface of the housing in contact with the filter module.

The filter module of the air conditioner according to an embodiment of the present invention includes a rail for guiding movement of the filter cleaner, and the filter cleaner includes at least one moving motor that provides a rotational force for movement of the filter cleaner. Including, the sound absorbing module may be disposed in a space between the inner surface of the housing and the suction fan and the moving motor.

The sound-absorbing module of the air conditioner according to an embodiment of the present invention includes a first plate having a plurality of holes, a second plate having a plurality of holes, and disposed to form an obtuse angle with the first plate, and the first plate and a sound absorbing material disposed in a space between the second plate and the housing.

The sound absorbing material of the air conditioner according to an embodiment of the present invention may be a porous sound absorbing material.

The housing of the air conditioner according to an embodiment of the present invention includes a base in contact with the filter module when the filter cleaner cleans the filter module, and a space in which the suction fan and the sound absorption module are disposed by being coupled to the base. and a cover forming a , wherein the first plate is inclined not to be perpendicular to the base, and the distance between the suction fan and the first plate may be 55% to 70% of a diameter of the suction fan.

The second plate of the air conditioner according to an embodiment of the present invention may be disposed to be horizontal with the base, and an angle between the first plate and the second plate may be 115° to 135°.

A diameter of the plurality of holes of the air conditioner according to an embodiment of the present invention is 50% to 125% of a thickness of the first plate, and an interval between the plurality of holes is 125% of a thickness of the first plate to 250%.

In addition, the air conditioner according to an embodiment of the present invention can reduce noise generated from the filter cleaner. Accordingly, it is possible to provide a more comfortable indoor space to the user.

In addition to the above-described effects, the specific effects of the present invention will be described together while describing specific details for carrying out the invention below.

1 is a front perspective view of an air conditioner according to an embodiment of the present invention.
2 is a rear perspective view of an air conditioner according to an embodiment of the present invention.
3 is a perspective view of a filter cleaner of an air conditioner according to an embodiment of the present invention.
4 is a partial cross-sectional view of a filter cleaner of an air conditioner according to an embodiment of the present invention.
5 schematically shows a sound absorbing material of a filter cleaner of an air conditioner according to an embodiment of the present invention.

The above-described objects, features and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

Although the first, second, etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from other components, and unless otherwise stated, it goes without saying that the first component may be the second component.

In the following, that an arbitrary component is disposed on the "upper (or lower)" of a component or "upper (or below)" of a component means that any component is disposed in contact with the upper surface (or lower surface) of the component. Furthermore, it may mean that other components may be interposed between the component and any component disposed on (or under) the component.

In addition, when it is described that a component is “connected”, “coupled” or “connected” to another component, the components may be directly connected or connected to each other, but other components are “interposed” between each component. It should be understood that “or, each component may be “connected,” “coupled,” or “connected,” through another component.

Throughout the specification, unless otherwise stated, each element may be singular or plural.

As used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “consisting of” or “comprising” should not be construed as necessarily including all of the various components or various steps described in the specification, some of which components or some steps are It should be construed that it may not include, or may further include additional components or steps.

Throughout the specification, when “A and/or B” is used, it means A, B or A and B, unless otherwise stated, and when “C to D” is used, it means that there is no specific opposite description. Unless otherwise specified, it means that it is greater than or equal to C and less than or equal to D.

Hereinafter, an air conditioner according to an embodiment of the present invention will be described.

1 is a front perspective view of an air conditioner according to an embodiment of the present invention. The air conditioner 1 according to an embodiment of the present invention may include a case 100 , a filter module 200 , and a filter cleaner 300 . The case 100 may include a cabinet 110 and a front panel 120 .

The case 100 forms an internal space in which a heat exchanger or the like is disposed. The case 100 may form an external shape of the air conditioner. In the case 100 , an inlet (not shown) through which air is sucked into the inner space and at least one outlet through which air is discharged from the inner space may be formed. According to an embodiment of the present invention, the discharge port may include a front discharge port 122 and a side discharge port 112 .

The cabinet 110 may form an internal space in which a front surface is opened and a heat exchanger is disposed. The cabinet 110 may form the external shape of the remaining portion except for the front surface of the air conditioner. A suction port (not shown) for sucking air may be formed at the rear of the cabinet 110 of the air conditioner. In addition, a side outlet 112 through which air is discharged may be formed on a side surface of the cabinet 110 . The side outlet 112 may be formed on the left and right sides of the cabinet 110 .

The front panel 120 may be disposed in front of the cabinet 110 of the air conditioner. The front panel 120 may form a front exterior of the air conditioner. A front discharge port 122 through which air is discharged may be formed in the front panel 120 . According to an embodiment, the front panel 120 may be movably coupled to the cabinet 110 .

According to an embodiment, a display unit for displaying an operating state of the air conditioner or inputting a user's command may be disposed on the front panel 120 .

The filter module 200 may be disposed at an inlet formed in the case 100 (more specifically, the cabinet 110 ) to remove foreign substances contained in indoor air introduced through the inlet.

The filter cleaner 300 may remove foreign substances adsorbed to the filter module 200 .

2 is a rear perspective view of an air conditioner according to an embodiment of the present invention. The air conditioner 1 according to an embodiment of the present invention may include a case 100 , a filter module 200 , and a filter cleaner 300 . The case 100 may include a cabinet 110 and a front panel 120 .

Configurations and/or functions of the case 100 , the filter module 200 , and the filter cleaner 300 are the same as those described in FIG. 1 .

As shown in FIG. 2 , the filter module 200 may include a rail 210 and a plurality of sub-filter modules 221 , 222 , 223 and 224 . The rail 210 may provide a movement path of the filter cleaner 300 . Each of the boxer sub-filter modules 221 , 222 , 223 , 224 includes a pre-filter that filters large dust in the air flowing into the inlet (not shown), a dust collection filter that filters air by collecting ionized air particles, and It may include at least one or more of a deodorizing filter for removing odors in the air.

The filter cleaner 300 may remove foreign substances adsorbed on the filter module 200 while moving along the rail 210 .

In FIGS. 1 and 2 , the suction port is formed at the rear of the case 100 (more specifically, the cabinet 110 ), and the filter module 200 and the filter cleaner 300 are also disposed at the rear of the case 100 . Although illustrated, the position of the suction port may be changed as needed.

3 is a perspective view of a filter cleaner of an air conditioner according to an embodiment of the present invention. The filter cleaner 300 of the air conditioner according to an embodiment of the present invention includes a housing 310, a suction fan 320, a first moving motor 332, a second moving motor 334, a first sound absorbing module ( 342 ), a second sound-absorbing module 344 , and a dust container 350 may be included.

The housing 310 may form the outer shape of the filter cleaner 300 . In addition, the housing 310 is a vacuum cleaner in which the suction fan 320, the first moving motor 332, the second moving motor 334, the first sound absorbing module 342, and the second sound absorbing module 344 are disposed. space can be formed.

An outlet through which air flowing through the inside of the housing 310 is discharged may be formed on one surface of the housing 310 by the operation of the suction fan 320 . The outlet may be formed in a portion where the suction fan 320 is disposed. For example, the exhaust port may be formed at the lower side of the housing 310 when the housing 310 is viewed from the rear (ie, opposite to the mounting surface when the filter cleaner 300 is mounted on the air conditioner).

The suction fan 320 may suck the foreign substances adsorbed on the filter module 200 toward the dust container 350 . The suction fan 320 may be operated by a suction motor. That is, foreign substances adsorbed on the filter module 200 by the operation of the suction fan 320 may be moved to the dust container 350 . The suction fan 320 may be disposed in the middle portion of the housing 310 with respect to the left and right directions.

The first moving motor 332 and the second moving motor 334 may generate rotational force for moving the filter cleaner 300 . When viewed from the rear (ie, opposite to the mounting surface when the filter cleaner 300 is mounted on the air conditioner), the first moving motor 332 may be disposed on the left side of the suction fan 320 , and the second The moving motor 334 may be disposed on the right side of the suction fan 320 .

Although not shown, threads may be formed on both sides of the rail (210 in FIG. 2), and the filter cleaner 300 meshes with the threads of the rail (210 in FIG. 2), and the first moving motor 332 and The first gear coupled to the first gear receiving rotational force from the first moving motor 332, meshes with the threads of the rail (210 in FIG. 2), and is coupled to the second moving motor 334 to provide a fourth moving motor 334 ) may include a second gear receiving the rotational force from the. That is, the filter cleaner 300 may move along the rail ( 210 in FIG. 2 ) by rotation of the first gear and the second gear.

The first sound-absorbing module 342 and the second sound-absorbing module 344 may reduce noise generated from at least one of the suction fan 320 , the first moving motor 332 , and the second moving motor 334 . . The first sound absorbing module 342 may be disposed in the space between the first moving motor 332 and the suction fan 320 and the inner surface of the housing 310 , and the second sound absorbing module 344 is the second moving motor It may be disposed in the space between the 334 and the suction fan 320 and the inner surface of the housing 310 .

When viewed from the rear (that is, when the filter cleaner 300 is mounted on the air conditioner, opposite to the mounting surface), the first sound absorbing module 342 is the rear of the first moving motor 332 and the suction fan 320 Doedoe disposed in the space on the left side of the space, may be disposed adjacent to the inner surface of the housing 310, the second sound absorbing module 344 is the space behind the second moving motor 334 and the right side of the suction fan 320 Doedoe disposed in the housing 310 may be disposed adjacent to the inner surface.

The dust container 350 may perform a function of accommodating foreign substances separated from the filter module 200 . The dust container 350 may be coupled to the housing 310 to be detachable from the housing 310 .

4 is a partial cross-sectional view of a filter cleaner of an air conditioner according to an embodiment of the present invention.

3 and 4 , the housing 310 may include a cover 312 and a base 314 . The base 314 may be disposed on a surface in contact with the air conditioner when the filter cleaner 300 is mounted on the air conditioner. That is, the base 314 may provide a surface in contact with the filter module 200 when the filter cleaner 300 is mounted on the air conditioner to clean the filter module 200 . The cover 312 may be disposed at the rear of the base 314 when viewed from the rear (ie, opposite to the mounting surface when the filter cleaner 300 is mounted on the air conditioner).

The first sound absorbing module 342 may include a 1-1 plate 3422 , a 1-2 th plate 3424 , and a first sound absorbing material 3426 . The first sound absorbing module 342 may be disposed in a space between the first moving motor 332 and the suction fan 320 and the inner surface of the cover 312 .

A plurality of holes may be formed in the 1-1 plate 3422 and the 1-2 plate 3424 . The plurality of holes may have a constant diameter. In addition, the holes may be arranged to have a constant interval. The diameter of the holes formed in the 1-1 plate 3422 and the 1-2 th plate 3424 and the spacing between the holes may be determined by tonal noise to be removed. That is, the 1-1 plate 3422 and the 1-2 th plate 3424 may perform a function of removing tonal noise.

The diameter of the hole formed in the 1-1 plate 3422 and the 1-2 plate 3424 may be 50% to 125% of the thickness of the 1-1 plate 3422 and the 1-2 plate 3424, , the spacing between the holes may be 125% to 250% of the thickness of the first-first plate 3422 and the first-second plate 3424 . When it has this numerical range, there is a sound-absorbing effect. For example, the thickness t of the 1-1 plate 3422 and the 1-2 th plate 3424 may be 2 mm, the diameter of the holes may be 2 mm, and the spacing between the holes may be 2.5 mm.

The first-first plate 3422 may be inclined so as not to be perpendicular to the base 314 . An angle between the 1-1 plate 3422 and an imaginary straight line perpendicular to the base 314 may be 25° to 45°. In addition, the distance between the 1-1 plate 3422 and the suction fan 320 may be 55% to 70% of the diameter R of the suction fan 320 . When it has this numerical range, there is a sound absorption effect. Here, the distance between the 1-1 plate 3422 and the suction fan 320 may be the shortest distance between the 1-1 plate 3422 and the outer surface of the suction fan 320 .

The 1-2-th plate 3424 may be disposed horizontally with the base 314 . Accordingly, the angle a between the 1-1 plate 3422 and the 1-2 th plate 3424 may be 115° to 135°. In addition, when viewed from the rear (ie, opposite to the mounting surface when the filter cleaner 300 is mounted on the air conditioner), the 1-2 plate 3424 overlaps with the first moving motor 332 at least in part. It can be arranged so as to

The first sound absorbing material 3246 may be a porous sound absorbing material. The first sound absorbing material 3246 may perform a function of removing noise in a high frequency band. The first sound absorbing material 3246 may be disposed in a space formed by the cover 312 , the 1-1 plate 3422 and the 1-2 th plate 3424 .

5 schematically shows a sound absorption module of a filter cleaner of an air conditioner according to an embodiment of the present invention.

As described in FIG. 4 , the first sound absorbing module 342 may include a 1-1 plate 3422 , a 1-2 plate 3424 , and a first sound absorbing material 3426 .

The 1-1 plate 3422 may be inclined so as not to be perpendicular to the base 314 of the filter cleaner 300 , and the 1-2 plate 3424 may be arranged to be horizontal with the base 314 . . A plurality of holes may be formed in the 1-1 plate 3422 and the 1-2 plate 3424 . That is, the 1-1 plate 3422 and the 1-2 plate 3424 may serve as a Helmholtz resonator that removes a sound of a specific frequency according to the diameter, depth, and volume of the hole.

The first sound absorbing material 3426 may be disposed in a space formed by the cover 312 , the 1-1 plate 3422 and the 1-2 th plate 3424 . In this case, the first sound absorbing material 3426 may fill all the spaces formed by the cover 312 , the 1-1 plate 3422 and the 1-2 th plate 3424 . A small space such as a small bubble or a thin tube may be formed on the surface and inside of the first sound absorbing material 3426 . That is, the first sound absorbing material 3426 may be a porous sound absorbing material, and noise may be removed while sound energy is converted into thermal energy due to friction generated by vibration of air in the small space by sound waves. According to an embodiment of the present invention, the first sound absorbing material 3426 may be implemented as a polyurethane foam (PU form) having a void of 100 ~ 150um.

That is, the sound-absorbing module according to an embodiment of the present invention has a structure in which a porous sound-absorbing structure and a resonance-type sound-absorbing structure are mixed, thereby reducing both a specific tonal noise and a noise of a high frequency band.

4 and 5 illustrate a case in which holes are formed in the 1-1 plate 3422 and the 1-2 plate 3424, among the 1-1 plate 3422 and the 1-2 plate 3424 A hole may be formed in only one of them.

Although not shown, the second sound-absorbing module ( 344 in FIG. 3 ) may also have the same configuration as the first sound-absorbing module 342 shown in FIGS. 4 and 5 .

As described above, the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings disclosed in this specification, and various methods can be obtained by those skilled in the art within the scope of the technical spirit of the present invention. It is obvious that variations can be made. In addition, although the effects according to the configuration of the present invention have not been explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the configuration should also be recognized.

100: case 110: cabinet
120: front panel 200: filter module
300: filter cleaner 310: housing
320: suction fan 332, 334: moving motor
342, 344: sound absorption module

Claims (7)

a case in which an inlet through which air is sucked into the inner space and an outlet through which air is discharged into the indoor space are formed;
a filter module disposed in the suction port to remove foreign substances in the air sucked into the inner space; and
Includes a filter cleaner to remove foreign substances adsorbed to the filter module,
the filter cleaner
housing;
a dust container for accommodating foreign substances separated from the filter module;
a suction fan for flowing air in the direction of the dust container; and
Including a sound-absorbing module in which a plurality of holes are formed on at least a portion of the surface,
The distance between the surface on which the plurality of holes of the sound absorption module are formed and the suction fan is 55% to 70% of the diameter of the suction fan, and the surface on which the plurality of holes are formed of the sound absorption module is the filter module of the housing and An air conditioner inclined so that it is not perpendicular to the contact surface.
The method of claim 1,
The filter module includes a rail for guiding the movement of the filter cleaner,
The filter cleaner includes at least one movement motor that provides a rotational force for movement of the filter cleaner,
The sound absorbing module is an air conditioner disposed in a space between the inner surface of the housing and the suction fan and the moving motor.
According to claim 1, wherein the sound-absorbing module is
a first plate having a plurality of holes formed therein;
a second plate having a plurality of holes formed therein and disposed to form an obtuse angle with the first plate; and
and a sound absorbing material disposed in a space between the first plate and the second plate and the housing.
According to claim 3, wherein the sound-absorbing material is
An air conditioner that is a porous sound-absorbing material.
4. The method of claim 3,
The housing includes a base in contact with the filter module when the filter cleaner cleans the filter module, and a cover coupled to the base to form a space in which the suction fan and the sound absorption module are disposed,
The first plate is inclined not to be perpendicular to the base, and the distance between the suction fan and the first plate is 55% to 70% of a diameter of the suction fan.
6. The method of claim 5,
The second plate is arranged to be horizontal with the base,
An angle between the first plate and the second plate is 115° to 135°.
5. The method of claim 4,
A diameter of the plurality of holes is 50% to 125% of a thickness of the first plate, and an interval between the plurality of holes is 125% to 250% of a thickness of the first plate.

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