KR20100093447A - Dust collector for vacuum cleaner - Google Patents

Abstract

Disclosed is a dust collector for a vacuum cleaner. The disclosed dust collector is a dust collector provided with a dust container installed inside the centrifuge, the centrifugal separator is provided with an open surface on which the dust is discharged to help reverse the direction of movement of the air separated dust It is configured to include; an inner cover to cover the open surface of the dust container provided with a flow path switching projection protruding toward. Therefore, the present invention has an advantage that the flow path switching projections to stabilize the rotation of the air, to reduce the pressure loss to enable a smooth exhaust, improve the separation efficiency of the dust.

Description

Dust collector of vacuum cleaner {DUST COLLECTOR FOR VACUUM CLEANER}

The present invention relates to a vacuum cleaner, and more particularly, to a dust collector of a vacuum cleaner applied to a vacuum cleaner for home, industrial, and business.

In order to reduce the inconvenience of using a dust bag, centrifugal vacuum cleaners are widely used to separate dust by rotating inflowing air collecting dust.

The centrifugal vacuum cleaner includes a centrifugal separator having a cyclone for rotating dust and separating dust, and a dust collector having a dust collector for collecting dust separated from the centrifugal separator.

The dust collector should smoothly discharge the separated dust from the centrifugal separator to improve the cleaning efficiency of the vacuum cleaner and ensure stable operation, and should also smoothly discharge the air inside the centrifuge.

Examples of the dust collecting device of the prior art to meet this need are Republic of Korea Patent No. 10-648960 (Prior Art 1), Republic of Korea Patent No. 10-554237 (Prior Art 2), Republic of Korea Patent Publication No. 10-2005-119738 (Prior Art 3), a dust collector disclosed in International Patent WO 02/067756 (Prior Art 4), European Patent EP 18197 (Prior Art 5), and Japanese Patent Application Laid-Open No. 6-238197 (Prior Art 6). Can be mentioned.

Prior art 1 to 4 of the above-described prior art discloses a dust collecting device configured to improve the dust separation efficiency by having a primary separation unit and a secondary separation unit.

And the prior art 5 and 6 discloses a dust collecting device configured to improve the dust discharge efficiency at the end for discharging the dust of the cyclone is formed by forming a solid member facing the upper portion of the narrow end of the cyclone located inside the centrifuge do.

However, the above-described prior arts may have an unstable cyclone flow path because one cross section of the cyclone is open, and may adversely affect separation efficiency and pressure loss.

Accordingly, an object of the present invention is to provide a dust collector of a vacuum cleaner which stabilizes the air flow in the cyclone inner flow path and improves the separation efficiency.

In addition, another object of the present invention is to provide a dust collector of a vacuum cleaner which smoothly exhausts air and lowers pressure loss.

In addition, another object of the present invention is to provide a dust collector of a vacuum cleaner that allows the separated dust to be easily discharged to the outside of the centrifuge.

In the dust collector of the vacuum cleaner of the present invention for achieving the above object, in the dust collector having a dust container provided inside the centrifugal separator, the flow path switching protruding toward the open surface from which the dust is discharged And an inner cover provided with a protrusion to cover the open surface of the dust container.

The flow path switching protrusion may further include an auxiliary flow path switching protrusion protruding from the surface facing the centrifugal separator.

The auxiliary flow path conversion protrusion may be formed to be inserted into the centrifuge.

The centrifugal separator may be composed of a primary separator and a secondary separator.

The primary separation unit may have a primary separation region defined by a primary separation wall, and a primary exhaust pipe may be formed inside the primary separation region.

In this case, the secondary separating portion has a secondary separating region defined by at least two or more secondary separating walls protruding at regular intervals from the outer surface of the primary separating wall and engaging with the inner wall of the dust container. Each of the secondary separation zones includes a secondary cyclone and a secondary exhaust pipe located at the inner bottom of the secondary cyclone.

The centrifugal separator of the above-described configuration may be configured in various ways such that the rotation axis of the introduced air has a horizontal, vertical or constant inclination angle.

As described above, when the centrifugal separator is composed of a primary separator and a secondary separator, the flow path conversion protrusion is formed to protrude toward the secondary cyclone at a position opposite to an open surface from which dust of each of the secondary cyclones is discharged. . The flow path switching protrusion induces the discharge of dust, stabilizes the flow of rotating air, reverses the direction of movement, and prevents the air from entering the dust collection unit.

The auxiliary flow path switching protrusion may protrude to the secondary cyclone side so as to be inserted into the secondary cyclone through an open surface through which dust of the secondary cyclone is discharged on a surface facing the secondary cyclone of the flow path switching protrusion. have.

Preferably, the auxiliary flow path switching protrusion is formed such that the cross section protruding from the flow path switching protrusion is larger than the cross section facing the cyclone so that the outer surface forms a predetermined inclined surface. In this case, the inclined surface is more preferably formed as a curved surface.

The auxiliary flow path switching protrusion causes the air reflected from the surface of the induction switching protrusion facing the cyclone to be inverted along the inclined surface, thereby reducing the pressure loss that may occur when the air is suddenly reversed by the reflection, Induces the movement of the dust discharged to improve the dust separation efficiency.

In the present invention, the inner cover may be formed as a dome portion having a concave surface facing the open surface from which the dust of the primary separator is discharged.

In addition, the inner cover is converted into a flow path conversion protrusion and an auxiliary oil protruding from the primary separation part at a position opposite to the open surface from which dust is discharged from the primary separation part in order to stabilize the flow path in the primary separation part and improve separation efficiency. It may be configured to further include a protrusion.

The inner cover having the above-described configuration is combined with the dust container to have a predetermined distance from the open surface from which the dust is discharged from the primary separation unit and the secondary separation unit so that dust can be discharged.

In addition, the present invention may be configured to further include an exhaust unit for collecting the air discharged through each of the secondary exhaust pipe from the external position where the air of the centrifugal separator is discharged through the exhaust pipe.

The exhaust unit, an exhaust collection unit for collecting the air discharged from the secondary cyclones; An exhaust part exhaust pipe for discharging exhaust air collected from the exhaust collecting part; And a dividing wall separating the lower region of the dust container into a primary collector and a secondary collector.

The exhaust collecting unit may include: a fitting unit coupled to an outer circumference of a bottom surface of each of the secondary cyclones; And an exhaust induction part for inducing exhaust air from each of the matching parts to an upper part of the exhaust part exhaust pipe. At this time, the space between the matching parts forms a path through which the dust moves to the secondary collection part.

The dividing wall is formed as a concave wall in which a surface facing the exhaust exhaust pipe protrudes toward the secondary collecting part so as to increase the volume of the primary collecting part to improve the collection efficiency of the dust separated from the primary separating part. Can be. In this case, the concave wall is preferably formed as an arc wall.

In addition, the secondary separator may include a secondary auxiliary cyclone, and the matching part may further include a coupling part coupled to a bottom of the secondary auxiliary cyclone.

The exhaust unit having the above-described configuration includes a secondary collection unit separating the dust collected by the primary separation unit and the secondary separation unit to collect the dust separated by the primary separation unit from the dust collection area inside the dust container. Split into negatives. In addition, by collecting and discharging the air discharged from the secondary separation unit, the exhaust efficiency is improved and the structure for forming the exhaust passage is simplified.

According to the present invention, the curved inclined side surface connected to the channel switching protrusion and the auxiliary channel switching protrusion smoothly rotates the air in the centrifuge and improves the dust separation efficiency in the centrifuge.

In addition, the present invention has the effect of reducing the pressure loss due to the flow due to the oil well and the smooth flow path direction reversal.

In addition, the present invention facilitates the discharge of the dust in the centrifugal separator by inducing the separated dust to be discharged to the outside of the curved inclined side surface of the flow path switching projection and the auxiliary channel switching projection.

Hereinafter, with reference to the accompanying drawings showing a preferred embodiment of the present invention will be described in more detail the present invention.

1 is a perspective view of a dust collector 100 according to an embodiment of the present invention, Figure 2 is an exploded perspective view of the dust collector 100 of Figure 1, Figure 3 is a bottom perspective view of the inner cover 20 of Figure 1, Figure 4 1 is a perspective view of the centrifugal separator of FIG. 1, FIG. 5 is a perspective view of the exhaust unit of FIG. 1, and FIG. 6 is a cross-sectional view of the dust collector of FIG. 1.

 1 to 6, the dust collecting apparatus 100 according to the embodiment of the present invention includes an upper cover 10, an inner cover 20, a dust container 30, a centrifugal separator 40, an exhaust unit 50, and It is configured to include a lower cover (60).

The upper cover 10 is a handle formed with an upper cover hook 13 for fixing the dust collector 100 to a vacuum cleaner (not shown) and a release button 12 for releasing the hook of the upper cover hook 13. The inner cover 20 is coupled to the open upper portion of the dust container 30 to which the inner cover 20 is coupled to seal the upper part of the dust collector 100 and form a lid to facilitate movement (see FIG. 6). ).

The inner cover 20 includes a dome portion 20a, a first flow path switching protrusion 21 and a second flow path switching protrusion 22 formed in a central area facing the upper portion of the primary separation part 43.

The dome portion 20a has a larger outer diameter than the outer circumference of the primary separation part 43 and is formed as a spherical surface concaved in the upward direction. The dome portion 20a having the above-described configuration reverses the direction of movement of the air that rises and rotates in the primary separation portion 43, and the primary collecting portion 32 of dust from which the concave spherical surface of the dome portion 20a is separated is separated. Induce emissions to the furnace.

The first flow path switching protrusion 21 and the second flow path switching protrusion 22 face the open surfaces for discharging dust of the secondary cyclone 47a and the secondary auxiliary cyclone 47b of the inner cover 20. Protruding from the plane.

Each of the first flow path switching protrusion 21 and the second flow path switching protrusion 22 protrudes downward from the bottom thereof and is inserted into the secondary cyclone 47a or the secondary auxiliary cyclone 47b. The switching projection part 21a and the 2nd auxiliary flow path switching projection part 22a are provided.

At this time, the first auxiliary channel switching protrusion 21a and the second auxiliary channel switching protrusion 22a are narrowed in the downward direction, so that their respective outer side surfaces have a first inclined surface 21b and a second inclined surface ( 22b). The first or second inclined surfaces 21b and 22b may have curved inclinations for smooth inversion of the moving direction of air and induction of dust discharge.

The bottom surfaces of the first flow path switching protrusion 21 and the second flow path switching protrusion 22 are rotated along the inner surfaces of the secondary cyclone 47a and the secondary auxiliary cyclone 47b, respectively. Smoothly rotates even in the region near the discharged surface to be discharged, and reverses the moving direction to the secondary exhaust pipe 48. In addition, the surfaces of the first flow path switching protrusion 21 and the second flow path switching protrusion 22 that face the secondary cyclones and the secondary auxiliary cyclones 47a and 47b may be introduced into the secondary collecting unit 33. To prevent the shaking of the dust collected in the secondary collector 33.

In this process, the first auxiliary flow path switching protrusion 21a and the second auxiliary channel switching protrusion 22a allow the reflected air to be gently reversed by riding on the inclined surfaces 21b and 22b of the outer side. Reduce pressure loss and improve separation efficiency.

In addition, although the inner cover 20 is not shown in the drawing, a flow path protruding toward the primary separation part 43 on the bottom surface of the dome part 20a to improve the efficiency of dust separation in the primary separation part 43. It may be configured to further include an auxiliary flow path switching projection protruding from the surface facing the primary separation portion 43 of the flow path conversion projection to be inserted into the conversion projection and the primary separation unit 43.

The dust container 30, as shown in Fig. 1 and 2, the fixing projections that the opening and closing button 34, the lower cover hook 61 for the opening and closing of the dust container inlet 31 and the lower cover 60 on the side ( 35), the upper and lower portions have an open barrel structure.

As shown in FIG. 6, the dust container 30 having such a structure has an inner region of the primary collector 32 and the secondary collector 33 by the centrifugal separator 40 and the exhaust unit 50 mounted inside. Divided into. The primary collector 32 collects dust separated from the primary separator 43, and the secondary collector 33 collects dust separated from the secondary separator 47. Since the dust container 30 is known in the prior art, its detailed description is omitted.

As shown in FIGS. 4 and 6, the centrifugal separator 40 includes a primary separator 43 for separating bulky and heavy dust from the air introduced from the outside, and air introduced from the primary separator 43. It consists of a secondary separator 47 for separating the fine dust contained in.

The primary separation part 43 has a primary separation region 43b defined by a primary inflow pipe 42 and a primary separation wall 43a for inflow of external air.

Inside the primary separation region 43b, a primary exhaust pipe 44 through which dust separated air is discharged is located. The primary exhaust pipe 44 is open at a position facing the secondary separator 47 of the lower outer surface. The lower surface of the primary exhaust pipe 44 thus opened is in communication with the open lower surfaces of the respective cyclones of the secondary separator 47 so as to discharge air discharged through the primary exhaust pipe 44 to the secondary separator 47. The communicating part 49 which flows in is formed.

On the outer side of the primary exhaust pipe 44, a spiral primary flow guide 45 is formed to guide the introduced air to move upward.

The secondary separating part 47 is formed by a plurality of secondary separating walls 46 extending to an inner side of the dust container 30 at a predetermined interval among the outer surfaces of the primary separating wall 43a. Secondary secondary separation regions 46a and secondary secondary separation walls 46 '.

Inside the secondary separation regions 46a and the secondary auxiliary separation regions 46'a, the upper portion has a cone shape, the lower portion has a cylindrical shape, and the lower portion of the cylindrical shape has an open surface communicating with the communicating portion 49. Secondary cyclones 47a and secondary secondary cyclones 47b are disposed, respectively. A secondary exhaust pipe 48 is located inside each of the secondary cyclone 47a and the secondary auxiliary cyclone 47b.

The secondary auxiliary separation region 46'a refers to a secondary dust separation region formed with a small diameter cyclone and an exhaust pipe on both sides of the secondary separation region 46a to improve separation efficiency of fine dust. At least one may be formed on each side of the secondary separation region 46a.

In the centrifugal separator 40 having the above-described structure, only the bottom of the secondary exhaust pipe 48 is opened, and the bottom and the secondary separator of the primary separator 43 except for the open bottom of the secondary exhaust pipe 48 ( The region including the bottom surface of 47 has a structure blocked by the plate 40a having a shape corresponding to the shape of the region. The plate blocking the bottom of the centrifuge portion 40 may be formed integrally with the centrifuge portion 40 or may be integrally formed with the dust container (30).

As shown in Figs. 5 and 6, the exhaust part 50 includes an exhaust collecting part 51, a separating part 53 having an exhaust part exhaust pipe 52 and a concave wall 54.

The exhaust collecting portion 51 is configured in the shape of a fan having a plurality of matching portions 51a and a concave exhaust inducing portion 51b.

The fitting portion 51a is formed in an arc shape in which side surfaces are connected to each other so as to be coupled to the outer circumference of the bottom of each of the secondary cyclones 47a and the secondary auxiliary cyclones 47b included in the secondary separator 47. do. The coupling part 51a thus coupled is formed with the secondary collection part 33 and an area formed by the open bottom of each secondary cyclone 47a and the secondary auxiliary cyclone 47b and the upper surface of the exhaust part 50. Isolate. At this time, the space between the matching portions 51a forms a path through which the dust moves to the secondary collection portion 33.

The exhaust induction part 51b is formed in a number corresponding to the number of the matching parts 51a, and is a valley shape in which an area for forgetting from each matching part 51a to the exhaust pipe is recessed, and both sides are connected to each other to form a floor shape. And the ends of the valley and the floor are formed to converge at the top of the exhaust exhaust pipe 52. The exhaust induction part 51b having this structure converges the air discharged from the respective secondary cyclones 47a and the secondary auxiliary cyclones 47b to the central exhaust part exhaust pipe 52.

The exhaust collector 52 having the above-described structure is located at the bottom of the secondary cyclone 47a and the secondary auxiliary cyclone 47b to exhaust air discharged through the respective secondary exhaust pipes 48. Together to improve the exhaust efficiency.

The exhaust exhaust pipe 52 is a pipe through which the upper and lower surfaces penetrate, so that the ends of the exhaust induction part 51b formed in the exhaust collecting part 51 are located in the open upper portion of the exhaust exhaust pipe 52. It is formed integrally with

The separation wall 53 has a concave inlet wall 54 which surrounds the exhaust exhaust pipe 52 at the center thereof, and both sides thereof extend to the inner surface of the dust container 30 so that the lower portion of the dust container 30 can be disposed in the primary collection part 32. ) And the secondary collection unit 33. At this time, the concave wall 54 is formed to protrude into the secondary collection portion 33 area. As a result, the area of the primary collecting part 32 which is bulky and heavy and collects a large amount of dust is larger than the area of the secondary collecting part 33 to improve the dust collecting efficiency of the dust container 30. The concave wall 54 is preferably formed as an arc wall surrounding the exhaust exhaust pipe (52).

As shown in FIG. 2, the lower cover 60 has a through hole 64 formed at the center thereof so as to communicate with the exhaust exhaust pipe 52, and a lower cover hook 61 is provided at the side thereof, and a sealing member 63 is formed at the edge thereof. ) Is formed and coupled to the bottom surface of the dust container 30 by the hinge 62 and the lower cover hook 61 so as to be openable and closed.

Hereinafter, an operation process of the dust collecting apparatus 100 will be described with reference to FIG. 6.

In each of the above-described configuration, the centrifugal separator 40 and the exhaust part 50 are inserted into and fixed to the dust container 30 to which the lower cover 60 is coupled. The inner cover 20 is coupled to the dust container 30 to cover the upper opening of the dust container 30. At this time, the bottom of the inner cover 20 has a predetermined interval with the upper end of the primary separating portion 43 and the secondary separating portion 47. After that, the upper cover 10 is coupled to the dust container 30 at the upper portion of the inner cover 20.

After the combined dust collector 100 is mounted on the vacuum cleaner (not shown) and the fan motor (not shown) of the vacuum cleaner is driven as described above, the centrifugal separator 40 is connected to the dust container inlet 31. External air is sucked into the primary separation region 43b through the primary inlet 41 combined with The sucked air is rotated about the primary exhaust pipe 44 by the primary flow guide 45 and moves to the upper portion of the primary separation region 43b.

When the air rotates in the primary separation region 43b and moves upward, the bulky and heavy dust is separated from the rotating air by centrifugal force, and then the space between the inner cover 20 and the primary separation portion 43 ( 40b) is discharged to the primary collector 32.

The air, which rotates in the primary separation region 43b and moves upward, is separated from the moving direction by the suction force of the primary exhaust pipe 44.

As described above, when the direction of movement of the air moving while rotating in the primary separation region 43b is reversed, dust is separated more quickly and an effect of improving separation efficiency can be obtained.

In this case, the concave spherical surface 20b formed on the bottom surface of the dome portion 20a reflects the rotating air so that the moving direction is easily reversed, and the separated dust is discharged to the primary collection portion 32 to smoothly exhaust the air. And improve dust separation efficiency.

The inflowing air in which the direction of movement is reversed and the heavy or bulky dust is separated first is introduced through the primary exhaust pipe 44 and the communication unit 49 by the suction force of the fan motor (not shown) of the vacuum cleaner. It flows into the car separator 47.

The air introduced into the secondary separator 47 is formed by the secondary cyclone 47a and the secondary formed in each of the secondary separator 46a and the secondary auxiliary separator 46'a of the secondary separator 47. It enters the secondary cyclone 47b.

Air introduced into each secondary cyclone 47a and secondary secondary cyclone 47b rotates and moves upward along the inner side of secondary secondary cyclone 47b or secondary secondary cyclone 47b.

Air moved to the upper part of the secondary cyclone 47a and the secondary auxiliary cyclone 47b is reflected from the bottom of the first flow path switching protrusion 21 and the second flow path switching protrusion 21a positioned at the upper side, and the direction is reversed. do. At this time, the first and second inclined surfaces 23 and 23a induce the air in which the inverted direction is inverted to move with a gentle curve in the downward direction, thereby preventing the pressure loss of the air generated during the inverted abrupt direction of the dust separation efficiency. Improves dust and facilitates dust discharge.

The air reversed in the secondary cyclone 47a and the secondary auxiliary cyclone 47b of the secondary separation part 47 passes through the secondary exhaust pipe 48 formed inside each of the exhaust parts 50. Discharged.

The exhaust unit 50 collects the air discharged from the respective secondary exhaust pipes 48 of the secondary separation unit 47 to the upper portion of the exhaust pipe exhaust pipe 52 by the exhaust collector 51 to exhaust the exhaust pipe 52. And discharges to the outside of the dust collector 100 through the through hole formed in the lower cover (60).

The present invention can be applied to cleaning devices, such as household, industrial, commercial cleaners.

1 is a perspective view of a dust collecting apparatus 100 according to an embodiment of the present invention,

2 is an exploded perspective view of the dust collector 100 of FIG.

3 is a bottom perspective view of the inner cover 20 of FIG.

Figure 4 is a perspective view of the centrifugal separator of Figure 1,

5 is a perspective view of an exhaust unit of FIG. 1;

6 is a cross-sectional view of the dust collector of FIG. 1.

DESCRIPTION OF THE RELATED ART [0002]

100: dust collector 20: inner cover

20a: Dome 21: First flow path conversion protrusion

21a: second flow path conversion protrusion 22: first auxiliary flow path conversion projection

22a: 2nd auxiliary flow path switching protrusion 23: 1st inclined surface

23a: second inclined plane 40: centrifugal separator

40a: plate 40b: space

41: primary inlet 42: primary inlet

43: primary separation unit 43a: primary separation area

43b: primary separation wall 44: primary exhaust pipe

45: primary flow guide 46: secondary partition wall

46 ': secondary secondary barrier 46a: secondary secondary zone

46'a: secondary secondary separation region 47: secondary separation region

47a: secondary cyclone 47b: secondary secondary cyclone

48: secondary exhaust pipe 49: communication unit

50: exhaust 51: exhaust collector

52 exhaust gas exhaust pipe 53 partition wall

54: concave walls

Claims (15)

In the dust collector provided with a dust container installed inside the centrifugal separator, And an inner cover covering the open surface of the dust container, having a flow path switching protrusion projecting toward the open surface through which the dust is discharged from the centrifugal separator. The method of claim 1, wherein the flow path conversion projection, Dust collector of the vacuum cleaner, characterized in that it further comprises an auxiliary flow path conversion projection protruding from the surface facing the centrifugal separator. The method of claim 2, wherein the auxiliary flow path conversion projection, Dust collecting device of the vacuum cleaner, characterized in that inserted into the centrifuge. The method of claim 3, wherein the auxiliary flow path conversion projection, Dust collector of the vacuum cleaner, characterized in that the cross section is narrowed toward the inner side of the centrifugal separator is formed as an inclined surface. The method of claim 1, The centrifugal separator comprises a primary separator and a secondary separator having at least one secondary cyclone, The flow path conversion projection is a dust collector of the vacuum cleaner, characterized in that protruding from the surface of the inner cover facing the open surface from which the dust of the secondary cyclone is discharged. The method of claim 5, wherein the flow path conversion projection, Dust collector of the vacuum cleaner, characterized in that it further comprises an auxiliary flow path conversion projection protruding to be inserted into the secondary cyclone. The method of claim 6, wherein the auxiliary flow path conversion projection, Dust collector of the vacuum cleaner, characterized in that the cross section is narrowed toward the inner side of the cyclone is formed in the inclined surface. The method of claim 5, Dust collecting device of the vacuum cleaner, characterized in that further provided with an exhaust unit for collecting the discharged air discharged from the secondary cyclones. The method of claim 8, wherein the exhaust unit, An exhaust collector collecting air discharged from the secondary cyclones; An exhaust part exhaust pipe for discharging exhaust air collected from the exhaust collecting part; And, And a separating wall for separating the lower region of the dust container into a primary collecting unit and a secondary collecting unit. The method of claim 9, wherein the exhaust collecting unit, Dust collecting device for a vacuum cleaner comprising a; a coupling part for engaging with the outer peripheral edge of the bottom of each of the secondary cyclones. The dust collector of claim 10, wherein a space between the matching parts forms a path through which dust moves to the secondary collecting part. The method of claim 10, wherein the exhaust collecting unit, And an exhaust induction part for inducing exhaust air from each of the matching parts to an upper part of the exhaust part exhaust pipe. The method of claim 9, wherein the partition wall, A dust collector of the vacuum cleaner, characterized in that the surface facing the exhaust pipe is formed with a concave wall protruding toward the secondary collector. The method of claim 10, The secondary separator further includes a secondary secondary cyclone, The molder further comprises a molder coupled to the bottom of the secondary auxiliary cyclone. The method of claim 5, wherein the inner cover, Dust collecting device of the vacuum cleaner, characterized in that the concave dome portion is formed with a surface facing the open surface from which the dust of the primary separation portion is discharged.

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