Patent Application
20250185863
The disclosure relates to a dust collector and a cleaner having the same, and more particularly to a dust collector having an improved structure and a cleaner having the same.
In general, a vacuum cleaner is a device that removes foreign matter substances from a surface to be cleaned to make it clean. Vacuum cleaners are commonly used in homes. A vacuum cleaner uses the intake power of a fan motor unit to draw in air and then separates foreign matter in the drawn-in air using a device such as a filter to clean the room. There are two types of vacuum cleaner: canister type and upright type, and recently, robotic vacuum cleaners have become popular as they drive themselves around the area to be cleaned without any user intervention, drawing in foreign matter, such as dust, from the surface to be cleaned.
A vacuum cleaner includes a dust collector therein so that foreign matter contained in the drawn-in air is filtered out by a given filtering device. There are two types of filtering devices for filtering out foreign matter in the dust collector: a porous filtering device in which the air is forced through a porous filter and foreign matter is filtered out, and a cyclone type dust collector in which foreign matter is filtered out during the cyclone flow of the air.
An embodiment the present disclosure provides a dust collector capable of improving dust collection efficiency and a cleaner having the same.
Technical tasks to be achieved in this document are not limited to the technical tasks mentioned above, and other technical tasks not mentioned will be clearly understood by those skilled in the art from the description below.
An embodiment of the present disclosure provides a cleaner including an intake head to draw in foreign matter, a dust collector to be connected to the intake head, and a fan configured to generate an intake force within the dust collector. The dust collector may include a housing including an inlet and an outlet that are arranged facing a first direction from the inlet, a rotating body rotatable within the housing, a partition arranged between the housing and the rotating body, a first flow path formed between an inner side of the partition and the rotating body and configured to allow air entering through the inlet to be directed along the first direction, and a second flow path formed between an outer side of the partition and the housing and configured to allow air to be directed along a second direction opposite to the first direction.
The partition may include an end arranged facing the first direction, and the first flow path and the second flow path may be arranged to be connected at the end.
The end of the partition may be a first end, and the partition may include a second end opposite to the first end, and the first flow path and the second flow path may be arranged to be connected at the second end.
The dust collector may further include a guide wall extending from the inlet toward the partition to allow the air entering through the inlet to be moved to the first flow path.
The guide wall may include a first end of the guide wall arranged facing the first direction and a second end of the guide wall arranged opposite the first end of the guide wall, and the second end of the partition may be arranged on a downstream side of the first end of the guide wall with respect to the second direction.
The guide wall may be arranged to be spaced apart from the partition toward a center of the housing, and the dust collector may further include a re-inlet formed between the partition and the guide wall to allow the air passing through the second flow path to be moved to the first flow path.
The dust collector may further include a radial rib connecting the partition and the guide wall.
The dust collector may further include a dust collecting chamber arranged on a downstream side from the second end of the partition in the second direction to receive foreign matter in the air moving to the second flow path.
The guide wall may be arranged within the housing, and the dust collecting chamber may be formed between the housing and the guide wall.
The dust collector may further include a rotating body motor providing a driving force for rotating the rotating body and a rotating body motor case arranged within the housing to protect the rotating body motor, and the rotating body motor case may include a through hole allowing air passing through the first flow path to be moved to the outlet.
The through hole may include an opening formed at an end with respect to the second direction, and the end of the partition may be arranged on a downstream side of the opening with respect to the first direction.
The rotating body motor case may further include an inclined surface arranged on the inner side of the partition to surround the opening, the inclined surface inclined toward the partition along the first direction.
The partition may include a support protrusion arranged on an outer circumferential surface to be supported by the housing.
The rotating body may include a blade having a plurality of wings.
The inlet and the outlet may be arranged along a straight line.
An embodiment of the present disclosure provides a cleaner including an intake head to draw in foreign matter, a dust collector connected to the intake head, and a fan configured to generate an intake force within the dust collector.
The dust collector may include a housing having an inlet and an outlet, a rotating body rotatable within the housing, a dust collecting chamber arranged within the housing to receive foreign matter scattered by the rotating body, and a partition arranged between the housing and the rotating body to form a flow path allowing air to be directed to the dust collecting chamber.
The dust collector may include a guide wall extending from the inlet toward the partition to guide the air entering through the inlet.
The partition may include a first end adjacent to the outlet and a second end arranged opposite the first end, and the dust collector may include a dust collecting chamber arranged on a downstream side from the second end of the partition to receive foreign matter in the air moving to the flow path.
An embodiment of the present disclosure provides a dust collector including a housing including an inlet through which air is introduced and an outlet arranged facing a first direction, a blade rotatable within the housing, a partition arrangeable between the housing and the blade, a guide wall extending from the inlet toward the partition to allow the air introduced through the inlet to be directed in the first direction, a first flow path formed between the partition and the blade, and a second flow path formed between the partition and the housing and configured to allow air to be directed in a second direction opposite to the first direction.
The partition may include a first end arranged facing the first direction and a second end arranged opposite the first end, and the first flow path and the second flow path may be arranged to be connected at the first end and the second end.
According to various embodiments of the present disclosure, the dust collector and the cleaner having the same may improve the dust collection efficiency.
The effects to be obtained from the present disclosure are not limited to those mentioned above, and other effects not mentioned will be apparent to a person skilled in the art to which the present disclosure belongs from the following description.
Embodiments described in the disclosure and configurations shown in the drawings are merely examples of the embodiments of the disclosure and may be modified in various different ways at the time of filing of the present application to replace the embodiments and drawings of the disclosure.
In addition, the same reference numerals or signs shown in the drawings of the disclosure indicate elements or components performing substantially the same function.
Also, the terms used herein are used to describe the embodiments and are not intended to limit and/or restrict the disclosure. The singular forms “a,” “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. In this disclosure, the terms “including”, “having”, and the like are used to specify features, figures, steps, operations, elements, components, or combinations thereof, but do not preclude the presence or addition of one or more of the features, figures, steps, operations, elements, components, or combinations thereof.
It will be understood that, although the terms “first”, “second”, “primary”, “secondary”, etc., may be used herein to describe various elements, but elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the disclosure, a first element may be termed as a second element, and a second element may be termed as a first element. The term of “and/or” includes a plurality of combinations of relevant items or any one item among a plurality of relevant items.
In addition, as used in the following description, the terms “front”, “rear”, “top”, “bottom”, “left” and “right” are defined with reference to the drawings and are not intended to limit the shape and position of each element.
Hereinafter, various embodiments according to the disclosure will be described in detail with reference to the accompanying drawings.
For ease of description, a portion where an intake head 10 is arranged in
The cleaner 1 may include the intake head 10 configured to draw in foreign matter, such as hair, on a surface to be cleaned by intake force of air, a case 20 coupled to the intake head 10, a dust collector 100 arranged within the case 20 and configured to collect foreign matter, and a main body 30 movably arranged within the case 20.
The intake head 10 may be configured to draw in foreign matter, such as dust, present on the surface to be cleaned while moving over the surface to be cleaned. The intake head 10 may include a head assembly 11 and a neck portion 12.
An air passage may be formed in an interior of the head assembly 11. The air passage formed within the head assembly 11 may communicate with the dust collector 100 via the neck portion 12. Outside air and foreign matter introduced through the head assembly 11 may move into the interior of the case 20 through the neck portion 12.
The neck portion 12 may be connected to a lower portion of the case 20. The neck portion 12 may be rotatably coupled to the head assembly 11. As the neck portion 12 rotates with respect to the head assembly 11, the head assembly 11 may also rotate with respect to the case 20 connected to the neck portion 12. Accordingly, the cleaner 1 may have an improved degree of freedom of movement.
The case 20 may form a portion of the external shape of the cleaner 1. The case 20 may be mounted to the intake head 10. The case 20 may include a hollow 21. The dust collector 100 and/or the main body 30 may be inserted into the hollow 21.
The main body 30 may be slidably coupled to the case 20.
The main body 30 may include an extension 31 forming a portion of the external shape of the cleaner 1. A space may be formed in the interior of the extension 31 to receive wires extending toward a control switch 91.
The handle 90 may be arranged at a rear end of the extension 31. The handle 90 may be arranged on an upper portion of the main body 30. The handle 90 may allow a user to push or pull the intake head 10 while gripping the handle 90 when using the cleaner 1.
The handle 90 may be provided with the control switch 91 for controlling the operation of the cleaner. The control switch 91 may be configured to receive commands from the user for operating the cleaner 1. The control switch 91 may be arranged adjacent to the handle 90 such that the user may move and operate the cleaner 1 while cleaning.
The main body 30 may include a battery mounting portion 32. A battery 33 may be mounted in the battery mounting portion 32. One or more batteries 33 may be provided. The battery mounting portion 32 may be located on the interior of the case 20.
The main body 30 may be provided with a fan motor unit 40 configured to generate an intake force necessary to draw in foreign matter on the surface to be cleaned. The fan motor unit 40 may be configured to draw in outside air through the intake head 10 and pass the drawn-in air through the dust collector 100. The fan motor unit 40 may be located on the interior of the case 20 while being mounted to the main body 30. The fan motor unit 40 may include a fan 41 that generates an air flow and a fan motor 42 that provides a driving force to the fan 41.
By the intake force of the fan 41, air containing foreign matter may be drawn into the interior of the cleaner 1 through the intake head 10. It may then pass through the dust collector 100, move to a fan motor case 45, and be discharged to an outside of the cleaner 1 through the fan motor outlet 43 and the outlet (not shown) of the case 20.
The dust collector 100 may include a first dust collecting portion 200 and a second dust collecting portion 300. Air passing through the first dust collecting portion 200 may move to the second dust collecting portion 300. The second dust collecting portion 300 may be arranged on a downstream side of the first dust collecting portion 200. The first dust collecting portion 200 may be connected to the intake head 10.
The fan motor case 45 may be coupled to the dust collector 100. The fan motor case 45 may be positioned on a rear side of a housing 110. A fan motor filter 46 may be mounted within the fan motor case 45.
The fan motor filter 46 may be configured to filter once again foreign matter from the air before it enters the fan motor unit 40. The fan motor filter 46 may be arranged on a front side of the fan motor unit 40. The fan motor filter 46 may be provided as a mesh member.
The air passing through the fan motor filter 46 may pass through the fan motor unit 40 and be then discharged to the outside of the cleaner 1.
With such a configuration described above, when the cleaner 1 according to an embodiment of the present disclosure performs a cleaning operation, air including foreign matter drawn in from the intake head 10 may be primarily filtered in a filtering device 201 of the first dust collecting portion 200. Thereafter, the air that has moved to the second dust collecting portion 300 may be secondarily filtered. Thereafter, it may be tertiarily filtered by passing through the fan motor filter 46 and be then passed through the fan motor unit 40. The air passing through the fan motor unit 40 may be discharged to the outside of the cleaner 1 through the fan motor outlet 43 and the outlet (not shown) of the case 20.
Hereinafter, the dust collector 100 will be described in detail.
The dust collector 100 may include the housing 110. The housing 110 may include an inlet 111 and an outlet 112. The air drawn into the intake head 10 may be enter the housing 110 through the inlet 111. Air may be discharged to the outside of the housing 110 through the outlet 112.
The outlet 112 may be arranged from the inlet 111 in a first direction A. The first direction A may be a direction from the front to the rear. The first direction A may be a direction from the intake head 10 toward the handle 90. The first direction A may be a straight line. The outlet 112 and the inlet 111 may be arranged in a straight line, and thus the dust collector 100 may be implemented in a slim manner.
Meanwhile, a second direction B may be a direction opposite to the first direction A. The second direction B may be a direction from the rear to the front. The second direction B may be a straight line.
The first dust collecting portion 200 may be connected to the intake head 10. Air drawn into through the intake head 10 may pass through the filtering device 201 of the first dust collecting portion 200. The filtering device 201 may be provided as a mesh member. A first dust collecting chamber 202 may collect foreign matter filtered when air drawn into through the intake head 10 passes through the filtering device 201.
The air passing through the first dust collecting portion 200 may move to the second dust collecting portion 300. The second dust collecting portion 300 may include a guide wall 360 configured to guide the air passing through the first dust collecting portion 200. The guide wall 360 may include a guide wall inlet 363 configured to allow air passing through the first dust collecting portion 200 to be introduced.
The air introduced into the second dust collecting portion 300 through the guide wall inlet 363 may be secondarily filtered by a centrifugal force of a rotating body 310. Foreign matter filtered by the rotating body 310 may be collected in a second dust collecting chamber 380.
The air filtered by the second dust collecting portion 300 may be discharged to the outside of the housing 110 through the outlet 112. The air discharged to the outside of the housing 110 may move toward the fan motor filter 46.
While the present drawings are shown by way of example wherein the dust collector 100 includes the first dust collecting portion 200 and the second dust collecting portion 300, but the present disclosure is not limited thereto. For example, the dust collector 100 may include only the second dust collecting portion 300. Alternatively, the first dust collecting portion 200 of the dust collector 100 may be implemented in a configuration other than that shown in the present drawings.
Hereinafter, the second dust collecting portion 300 will be described in detail.
The second dust collecting portion 300 may include the rotating body 310. The rotating body 310 may be rotatably arranged within the housing 110.
The rotating body 310 may be arranged between the inlet 111 and the outlet 112 of the housing 110. The rotating body 310 may be arranged between the guide wall inlet 363 and a through hole 334 of the second dust collecting portion 300.
In response to rotation of the rotating body 310, air including foreign matter introduced into the housing 110 may be moved outwardly of the rotating body 310 by centrifugal force. The foreign matter moving outwardly of the rotating body 310 may be collected in the second dust collecting chamber 380.
The rotating body 310 may include a blade 311. The blade 311 may include a plurality of wings 312. The plurality of wings 312 may be arranged successively along a circumferential direction of the blade 311. Channels for the flow of air containing foreign matter may be formed between the plurality of wings 312.
A blade filter (not shown) may be provided on an outer side of the blade 311. The blade filter (not shown) may be configured to encircle the blade 311 and filter the air.
While the present drawings are shown with the rotating body 310 being the blade 311, but the present disclosure is not limited thereto. For example, the rotating body 310 may be provided as a rotatable filter. In other words, the rotating body 310 may be implemented in various shapes as long as it has a rotatable configuration.
The second dust collecting portion 300 may include a rotating body motor 321. The rotating body motor 321 may be configured to generate power to rotate the rotating body 310. The rotating body motor 321 may have a rotating shaft extending approximately in a vertical direction.
The second dust collecting portion 300 may include a rotating body motor case 333. The rotating body motor case 333 may be configured to protect the rotating body motor 321. The rotating body motor case 333 may prevent foreign matter from entering the rotating body motor 321.
The rotating body motor case 333 may accommodate at least a portion of the rotating body motor 321. The rotating body motor case 333 may accommodate at least a portion of a connecting shaft 322 connecting the rotating body motor 321 and the rotating body 310.
While the present drawings are shown with the rotating body motor 321 located outside the housing 110, but the present disclosure is not limited thereto. For example, all of the rotating body motor 321 may be accommodated in the rotating body motor case 333. The rotating body motor 321 may be arranged inside the housing 110.
The rotating body motor case 333 may be seated in the outlet 112 of the housing 110, located on the inside of the housing 110. The rotating body motor case 333 may cover the outlet 112 of the housing 110.
The rotating body motor case 333 may be arranged to penetrate the outlet 112 of the housing 110.
The rotating body motor case 333 may include the through hole 334. The through hole 334 may penetrate the outlet 112 of the housing 110. Air inside the housing 110 may be discharged to the outside of the housing 110 through the through hole 334.
The through hole 334 may be formed to penetrate from one end 333a to the other end of the rotating body motor case 333.
The through hole 334 may include a first opening 334a and a second opening 334b opposite to the first opening 334a. The through hole 334 may extend from the first opening 334a to the second opening 334b.
The first opening 334a may be an end of the through hole 334. The first opening 334a may be formed at an end of the rotating body motor case 333 with respect to the second direction B. The first opening 334a may be a point at which air from inside the housing 110 enters the rotating body motor case 333.
The rotating body motor case 333 may be arranged on an inner side of a partition 350. The first opening 334a of the rotating body motor case 333 may be arranged from the partition 350 toward the center of the housing 110.
The rotating body motor case 333 may include an inclined surface 335. The inclined surface 335 may be configured to surround the first opening 334a. The inclined surface 335 can be arranged adjacent to the first opening 334a.
The inclined surface 335 may be arranged on the inner side of the partition 350. The inclined surface 335 may be arranged from the partition 350 toward the center of the housing 110.
The inclined surface 335 may be inclined toward the partition 350 in the first direction A. The inclined surface 335 may be inclined toward the opposite direction of the center of the housing 110 in the first direction A.
The second dust collecting portion 300 may include the partition 350. The partition 350 may be arranged on the inside of the housing 110.
The partition 350 may be arranged between the housing 110 and the rotating body 310. The partition 350 may be arranged to be spaced inwardly from the housing 110 and spaced outwardly from the rotating body 310.
The partition 350 may be configured to form flow paths P1 and P2. A first flow path P1 may be formed between the partition 350 and the rotating body 310. A second flow path P2 may be formed between the partition 350 and the housing 110.
The first flow path P1 and the second flow path P2 may be partitioned by the partition 350. The first flow path P1 and the second flow path P2 may be connected at a first end 351 and/or a second end 352 of the partition 350. The first flow path P1 and the second flow path P2 will be described later.
The partition 350 may be positioned between the inlet 111 and the outlet 112 of the housing 110. The partition 350 may be positioned between the guide wall inlet 363 and the through hole 334 of the second dust collecting portion 300.
The partition 350 may extend between the guide wall inlet 363 and the through hole 334. The partition 350 may extend along the first direction A.
The partition 350 may include the first end 351 arranged facing the first direction A and the second end 352 opposite to the first end 351. The second end 352 of the partition 350 may be arranged facing the second direction B.
The partition 350 may extend along the circumferential direction of the housing 110. The partition 350 may have a cylindrical shape with a hollow formed therein.
The partition 350 may include a support protrusion 355. The support protrusion 355 may be arranged to support the partition 350 within the housing 110.
The support protrusion 355 may be provided on an outer circumferential surface 354 of the partition 350. The support protrusion 355 may be arranged to contact an inner circumferential surface of the housing 110. The support protrusions 355 may be provided in a plurality.
The second dust collecting portion 300 may include the guide wall 360. The guide wall 360 may be arranged within the housing 110. The guide wall 360 may be positioned between the first dust collecting portion 200 and the partition 350.
The guide wall 360 may include the guide wall inlet 363. Air passing through the first dust collecting portion 200 may enter the second dust collecting portion 300 through the guide wall inlet 363.
The guide wall 360 may be configured to guide air entering the second dust collecting portion 300. The guide wall 360 may guide air to move into the first flow path P1. The guide wall 360 may guide air to be directed in the first direction A.
The guide wall 360 may extend in the first direction A. The guide wall 360 may extend toward the partition 350.
The guide wall 360 may include a first end 361 of the guide wall arranged facing the first direction A and a second end 362 of the guide wall opposite to the first end 361 of the guide wall. The second end 362 of the guide wall may be arranged facing the second direction B.
The guide wall 360 may be arranged on the inner side of the partition 350. The guide wall 360 may be arranged from the partition 350 toward the center of the housing 110. Air drawn in by the guide wall 360 may be directed to the first flow path P1 formed on the inner side of the partition 350.
The guide wall 360 may be spaced apart from the partition 350. A re-inlet 365 may be formed between the guide wall 360 and the partition 350. The re-inlet 365 may be configured to allow air passing through the second flow path P2 to move back to the first flow path P1.
The partition 350 and the guide wall 360 may be connected to each other. The connecting portion 370 may be configured to connect the partition 350 and the guide wall 360. The partition 350 and the guide wall 360 may be integrally formed.
The connecting portion 370 may include radial ribs 371. The radial ribs 371 may extend along a radial direction of the partition 350.
The radial ribs 371 may be arranged to face the partition 350 from the guide wall 360. The radial ribs 371 may extend from the center of the partition 350 to an inner circumferential surface 353 of the partition 350. The radial ribs 371 may be provided in a plurality.
The connecting portion 370 may include annular ribs 372. The annular ribs 372 may be configured to connect the plurality of radial ribs 371. The annular ribs 372 may be provided in a plurality.
A seating groove 373 may be formed at the center of the connecting portion 370. The seating groove 373 may be formed by being a downward recess. One end of the rotating body 310 may be seated in the seating groove 373. The seating groove 373 may accommodate a portion of the rotating body 310, thereby reducing vibration and noise due to rotation of the rotating body.
The second end 352 of the partition 350 may be arranged on a downstream side from the first end 361 of the guide wall 360 in the second direction B. The second end 352 may be arranged facing the second direction B from the first end 361 of the guide wall.
The second dust collecting portion 300 may include the second dust collecting chamber 380. The second dust collecting chamber 380 may be configured to receive foreign matter within the housing 110. The second dust collecting chamber 380 may be arranged facing the second direction B from the partition 350.
The second dust collecting chamber 380 may be a space formed by the housing 110. The second dust collecting chamber 380 may include a first side wall 381 and a second side wall 382 facing the first side wall 381. The first side wall 381 may be the housing 110. The second side wall 382 may be the guide wall 360. The second dust collecting chamber 380 may be a space formed between the housing 110 and the guide wall 360.
The second dust collecting chamber 380 may include a lower surface 383 connecting the first side wall 381 and the second side wall 382. The lower surface 383 may be the housing 110. The housing 110 may include the first side wall 381 and the lower surface 383, which is bent from the first side wall 381, so as to form the second dust collecting chamber 380.
However, the present disclosure is not limited thereto, and the second dust collecting chamber 380 may be implemented in a variety of ways. For example, both the first side wall 381 and the second side wall 382 of the second dust collecting chamber 380 may be formed by the housing 110. Alternatively, the second dust collecting chamber 380 may be formed by a configuration independent of the housing 110.
Air may be introduced through the guide wall inlet 363. The air may flow in the first direction A along the guide wall 360 and move along the first flow path P1 formed between the partition 350 and the rotating body 310. The guide wall 360 may guide air into the first flow path P1.
The air moved into the first flow path P1 may move in the first direction A while rotating along the inner circumferential surface of the partition 350 by the centrifugal force caused by the rotation of the rotating body 310. The air may move to the first end 351 of the partition 350.
The first flow path P1 and the second flow path P2 may be connected at the first end 351 of the partition 350. Air passing through the first flow path P1 may move to the second flow path P2 by centrifugal force.
The air may move in the second direction B along the second flow path P2 formed between the partition 350 and the housing 110. At this time, foreign matter in the air may fall into the second dust collecting chamber 380 by gravity. Foreign matter may be received in the second dust collecting chamber 380.
The filtered air may move to the second end 352 of the partition 350. At the second end 352 of the partition 350, the second flow path P2 and the first flow path P1 may be reconnected. The air passing through the second flow path P2 may move back to the first flow path P1 through the re-inlet 365. It may then be discharged to the outside of the housing 110 through the through-hole 334 of the rotating body motor case 333.
Meanwhile, the first end 351 of the partition 350 may be arranged on the downstream side of the through-hole 334 with respect to the first direction A. In particular, the first end 351 of the partition 350 may be arranged on the downstream side of the first opening 334a with respect to the first direction A. Accordingly, foreign matter moving along the first flow path P1 may be prevented from moving into the first opening 334a. In other words, foreign matter may rotate along the inner circumferential surface of the partition 350 by centrifugal force and move in the first direction A, thereby preventing foreign matter from entering the first opening 334a.
In addition, the rotating body motor case 333 may include the inclined surface 335, so that foreign matter passing through the first flow path P1 may move in the first direction A along the inclined surface 335 and to the second flow path P2. The inclined surface 335 may prevent foreign matter from entering the through hole 334.
Meanwhile, the second end 352 of the partition 350 may be arranged on the downstream side of the first end 361 of the guide wall with respect to the second direction B. Accordingly, foreign matter moving along the second flow path P2 may be prevented from moving back into the first flow path P1 through the re-inlet 365. In other words, foreign matter may fall into the second dust collecting chamber 380 along the second end 352 of the partition 350.
While the present disclosure has been particularly described with reference to exemplary embodiments, it should be understood by those of skilled in the art that various changes in form and details may be made without departing from the spirit and scope of the present disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2022-0125842 | Sep 2022 | KR | national |
This application is a continuation application, under 35 U.S.C. § 111(a), of international application No. PCT/KR2023/010791, filed Jul. 26, 2023, which claims priority under 35 U. S. C. § 119 to Korean Patent Application No. 10-2022-0125842, filed Sep. 30, 2022, the disclosures of which are incorporated herein by reference in their entireties.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/KR2023/010791 | Jul 2023 | WO |
| Child | 19055939 | US |
