KR20140020194A - Dust collecting apparatus and electric cleaner having the same - Google Patents

Abstract

The present invention provides a dust collecting apparatus and an electric cleaner equipped with the same, capable of suppressing scaling up of a dust collecting apparatus by securing respective spaces for dust of different sizes for effective and separate collection. A dust collecting apparatus (26) has an inlet (51) to inhale dust-containing air, and is provided with a first centrifugal unit (41) to centrifugally separate some dust of the dust-containing air inhaled. The dust collecting apparatus (26) is positioned in the upper part of the first centrifugal separation unit (41), and is provided with a second centrifugal separation unit (44) to separate dust finer than the dust separated by the first centrifugal separation unit (41) in dust-containing air passing through the first centrifugal unit (41). The dust collecting apparatus (26) is provided with a blast stove (45) positioned in the upper part of the first centrifugal separation unit (41) and in the side part of the second centrifugal separation unit (44) to induce the air passing through the second centrifugal separation unit (44) toward the side of a motorized blower.

Description

Dust collector and electric vacuum cleaner provided with this {DUST COLLECTING APPARATUS AND ELECTRIC CLEANER HAVING THE SAME}

Embodiment of this invention relates to the dust collector which isolate | separates and collects dust from the air containing dust (called dust-containing air) suctioned by the operation of an electric blower, and the electric vacuum cleaner provided with this.

2. Description of the Related Art Conventionally, this type of vacuum cleaner includes a main body case accommodating an electric blower, and a dust collecting device detachably attached to the main body case. This dust collecting device is a so-called dust collecting cup and separates and collects dust from the dust-containing air sucked in by the drive of an electric blower.

As such a dust collector, in recent years, what is called a cyclone separation type which centrifugally separates dust (cyclone separation) by turning inside impregnated air is known. In the case of such cyclone-type dust collectors, since the size and specific gravity of the dust that can be separated are set according to the size (orbital diameter) of the separation part, the size and specific gravity in the impregnated air are provided separately by providing separate separation parts having different sizes. It is comprised so that this different dust may be isolate | separated.

However, if dusts of different sizes and specific gravity are accommodated in the same accommodating portion, when the electric blower is driven again, dusts having small sizes or specific gravity, that is, fine dust, may fly in the dust collector. Therefore, it is preferable to collect fine dust and dust with a large size and specific gravity, ie, large dust, in different accommodating parts.

Japanese Patent Laid-Open No. 2012-40443

In the structure of the said patent document 1, the some 2nd centrifugal part which centrifugally isolates fine dust is provided in the circumference | surroundings of the upper part of the 1st centrifugal part which centrifugally separates a large dust, and these 2nd centrifugal separators make fine dust Since the impregnated air which isolate | separated from is guide | induced to the suction side of an electric blower by the air flow path part which communicates upwards of each 2nd centrifugal separation part, there exists a problem that a dust collector becomes long shape in the up-down direction, and causes enlargement. .

The problem to be solved by the present invention is to provide a dust collecting device and an electric vacuum cleaner having the same, capable of suppressing enlargement while effectively collecting dusts having different sizes and effectively collecting spaces.

The dust collector of an embodiment is detachably installed in a main body case accommodating an electric blower, and is a dust collector that separates and collects dust from the air intake sucked by the operation of the electric blower, and an inlet for sucking the air intake. And a first centrifugal separator for centrifuging dust in the impregnated air sucked from the inlet port, and at least a portion of the first centrifugal separator above the first centrifugal separator, The second centrifugal separation part which separates dust smaller than the dust separated by 1 centrifugation part, and is located above the said 1st centrifugation part, and is located in the side of the said 2nd centrifugation part, and passed this 2nd centrifugation part. The air path part which guides air to the said electric blower side is provided.

Moreover, the dust collector of embodiment is a dust collector which is detachably attached to the main body case which accommodated the electric blower, is provided with an axial direction, and collects dust from the dust-collected air sucked in by the operation of the said electric blower, and collects it. A first centrifugal separator for centrifuging dust in the impregnated air sucked from the inlet, and at least a portion of the first centrifugal separator at one end in the axial direction. A second centrifugal separator for separating dusts smaller than dust separated by the first centrifugal separator in the impregnated air passing through the first centrifugal separator, and one end side in the axial direction with respect to the first centrifugal separator; In addition, it is located on the side of the second centrifugal separator, and provided with an air passage section for guiding the air passing through the second centrifugal separator to the electric blower side. have.

Moreover, the vacuum cleaner of embodiment is equipped with the main body case which accommodated the electric blower, and is detachably attached to this main body case, The above-mentioned characteristic which isolate | separates and collects dust from the damped air sucked by the operation of the said electric blower is characterized by the above-mentioned. It is characterized by having a dust collecting device having.

As a result, a dust collector and an electric vacuum cleaner having the same can be provided, which can prevent dusts having different sizes and efficiently separate the dusts, respectively.

BRIEF DESCRIPTION OF THE DRAWINGS Sectional drawing which shows the dust collector of the vacuum cleaner of one Embodiment.
2 is a perspective view showing the dust collector from the rear;
3 is a perspective view illustrating a state at the time of disposal of dust of the dust collector.
4 is a perspective view of the vacuum cleaner;

EMBODIMENT OF THE INVENTION Hereinafter, the structure of one Embodiment is demonstrated with reference to FIGS.

In Fig. 4, reference numeral 11 denotes a so-called canister type vacuum cleaner, and the vacuum cleaner 11 includes a pipe portion 12 which is a suction air passage (air passage forming body), and the pipe portion 12 is detachable. It has the cleaner main body 13 connected possibly.

The pipe part 12 includes the connection pipe part 15 connected to the cleaner main body 13, the hose body 16 which has flexibility to communicate with the front end side of this connection pipe part 15, and this hose body 16. The handle operation part 17 provided in the front end (upstream) side of the extension part, the extension pipe 18 connected detachably to the front end (upstream) side of this handle operation part 17, and the front end (upstream) side of this extension pipe 18. A bottom brush 19 as a suction inlet body detachably connected to the back is provided.

In the handle operation part 17, the loop-shaped holding part 21 protrudes toward the hose body 16 side, and the setting part 22 for operation is provided in the upper part of this holding part 21.

Moreover, the vacuum cleaner main body 13 is equipped with the main body case 25 which has the driving wheel 23 of large diameter on both sides, and has the turning wheel which is not shown in the lower part, and the upper part of this main body case 25 is dust-collected. The dust collector 26 which is a cup is detachably attached.

And the cleaner main body 13 is comprised by the running wheel 23 and the turning wheel so that running (moving) is possible at least along the front-back direction on the floor surface which is a to-be-cleaned surface. In addition, below, the front-back direction and the left-right direction are based on the traveling (moving) direction of the vacuum cleaner main body 13 (body case 25).

The main body case 25 is formed of, for example, a synthetic resin, and is provided with a main body portion 31 located behind the dust collecting device 26 and a dust collecting device protruding from the front portion of the main body portion 31. It has integrally the protrusion support part 32 as a dust collector support part which supports the lower part of (26). And inside the main body case 25, the main body air path part which is not shown in figure is arrange | positioned over these main body parts 31 and the protrusion support part 32. As shown in FIG.

Control means for controlling the operation of the electric blower 35, a cord reel device capable of feeding the electric blower 35, or the like, or a power supply unit (not shown) such as a secondary battery and the like, of the main body part 31. As a control circuit part, each is accommodated.

Moreover, although not shown in the upper part of the protrusion support part 32 of the front part of this main-body part 31, the intake opening part air-tightly connected to the downstream side of the dust collector 26 mounted in the main-body case 25, Communication openings hermetically connected to the upstream side of the dust collector 26 are located above and below, and are formed in an opening.

And the rear end of this main-body part 31 is formed with the exhaust hole which is not shown in figure which exhausts the exhaust from the electric blower 35 to the exterior of the main-body case 25. As shown in FIG.

The operation of the electric blower 35 is controlled by the control circuit unit in accordance with the operation of the setting button 22. The suction (upstream) side of the electric blower 35 communicates with the intake opening, and the downstream side communicates with the exhaust hole.

The control circuit part is electrically connected to the setting button 22, and is set to an operation mode (for example, strong mode, medium mode, weak mode, automatic mode, stop mode, etc.) set by the operation of the setting button 22. It is comprised so that the operation | movement of the electric blower 35 may be set.

In addition, a main body suction port 36 to which the downstream side of the connecting pipe part 15 of the pipe part 12 is connected is formed in the front surface of the protrusion support part 32, and this main body suction port 36 is located upstream of the main body air passage part. It is an opening of a stage. Therefore, this main body suction port 36 communicates with the communication opening part which is not shown in the protrusion support part 32 through the main body air path part, and can communicate with the upstream side of the dust collector 26 via this communication opening part. have.

1 to 4, the dust collecting device 26 has a lower main body portion 38 as a first main body portion located on the lower side (upstream side) and an upper side of the lower main body portion 38. The upper main body part 39 as a 2nd main body part located in the (downstream side) is detachably provided.

The lower main body portion 38 is provided with a first centrifugal separation portion 41 and a space portion 42, and the upper main body portion 39 has a ventilation air passage portion 43 and a plurality of agents, for example. Two centrifugal separators 44 and air passages 45 are provided.

And this dust collector 26 is comprised so that the main body case 25 may be detachably latched by the latch support mechanism which is not shown in figure.

The lower main body part 38 is comprised in the unit shape which integrally provided the 1st centrifugal separator 41 located in the lower side, and the space part 42 located in the upper side.

Further, the first centrifugal separator 41 mainly centrifugates and collects relatively large dust, that is, large dust, which is a part of the impregnated air sucked inside by the electric blower 35. The first centrifugal separator 41 has a substantially cylindrical case portion 47 with a bottom, and a substantially cylindrical shade portion 49 which is a connecting body as a structure housed inside the case portion 47. Have

The case portion 47 is formed of a member such as a synthetic resin having a light transmissive (transparent), for example. Therefore, the first centrifugal separator 41 can visually see the inside from the outside.

In addition, the inlet 51 for sucking the impregnated air is opened in the rear portion of the case portion 47, and the lower main body portion 38 (the first centrifugal separator) of the dust collector 26 is opened. 41)) is provided with a handle 52 for protruding the grip (see Figs. 2 and 3).

Moreover, the wall part 53 as a cylindrical dust guide part protrudes coaxially in the whole circumference | surroundings of the upper end part of this case part 47, and the wall part 53 of the wall part 53 The central portion serves as a dust waste outlet 54 for discarding large dust collected in the first centrifugal separation portion 41.

The inlet 51 extends rearward and is hermetically connected to a communication opening formed in the protruding base 32 in a state where the dust collecting device 26 is attached to the main body case 25. Therefore, this inlet port 51 is hermetically connected to the main body suction port 36 through the communication opening.

Moreover, the handle part 52 is a rear part of the case part 47, and is protruded by the side of the introduction port 51 vicinity. This handle part 52 is provided in parallel with the axial direction of the up-down direction, ie, the lower main-body part 38 (1st centrifugal separation part 41), for example.

In addition, the handle portion 52 has a loop shape with respect to the case portion 47. In addition, this handle part 52 may be used for positioning when the dust collector 26 is attached to the main body case 25, for example.

The wall part 53 provided in the whole periphery of the upper end part of the case part 47 is formed so that diameter may become small gradually upward, and it inclines gradually to the center axis side. Moreover, the upper end part of this wall part 53 is airtightly connected with respect to the lower end part of this upper main-body part 39 in the state which provided the upper main-body part 39 in the lower main-body part 38. As shown in FIG. Therefore, the dust disposal opening 54 can be opened and closed by attaching and detaching the upper main-body part 39 and the lower main-body part 38. FIG.

The shade part 49 accommodated in the case part 47 forms the turning air path 58 which turns the impregnated air between the outer periphery of the shade part 49 and the inner circumferential surface 47a of the case part 47. In addition, the first centrifugal separator 41 and the second centrifugal separator 44 side (ventilating air passage 43) are connected through the inside.

This shade part 49 is provided with the shade part main body 61 which is a substantially cylindrical structure main body, and the compression part 62 provided coaxially at the lower end side of this shade part main body 61, and the shade part The upper end side of the main body 61 is hermetically connected to the upper main body 39, and the shade portion serves as the pivot center of the first centrifugal separation portion 41. In addition, this shade part 49 is attachable to and detachable from the case part 47 (dust disposal opening 54 of the case part 47).

The shade main body 61 includes a plurality of openings 66 in the circumferential direction through which the impregnated air passing through the turning air passage 58 passes therethrough, and the entirety of these openings 66 is covered by the filter 67. Lost

A sunshade closed portion 68 protrudes outwardly around the entire circumference of the upper portion of the shade portion main body 61, and the closed portion 68 is detachably connected to the upper end of the wall portion 53. It is. Accordingly, the occlusion portion 68 allows the space on the outer circumference side upstream of the shade portion 49, in other words, upstream of the filter 67 (opening 66), which is the upstream side of the first centrifugal separation portion 41. The side is cut off from the inside of the ventilation air passage part 43 of the upper main body part 39.

The compression unit 62 of the shade unit 49 compresses the large dust separated in the first centrifugal separation unit 41 by using the negative pressure generated by the driving of the electric blower 35. A circular top plate portion 73 projecting in the shape of a sunshade from the lower end of the main body 61 in the shape of a sunshade, and a circumferential plate portion 74 projecting downward from the outer periphery of the top plate portion 73 are integral. It is formed as an enemy, and is open downward.

A plurality of vent openings 75 are opened in the top plate portion 73 at substantially equal intervals in the circumferential direction, and these vent openings 75 are covered with a compression filter 76.

And this compression part 62 presses a big dust to the compression filter 76 by passing a part of the impregnated air which circulates in the turning wind path 58 to the ventilation opening 75 from the lower side, and a large dust will be taken out. It is configured to collect in a compressed state.

The space part 42 provided in the cylindrical shape continuously in the whole peripheral part of the upper end part of the case part 47 of the 1st centrifugal part 41 is extended upward with respect to the case part 47. As shown in FIG. . That is, this space part 42 is provided with the inclined surface part 77 which inclined downward from the outer side to the inner side.

In addition, the inner circumferential side of the space portion 42 is partitioned from the first centrifugal separation portion 41 by the wall portion 53. Moreover, the space part 42 is provided in the outer periphery of the dust disposal opening 54, and the upper side opens and closes by attaching and detaching the upper main-body part 39 with respect to the lower main-body part 38. Moreover, as shown in FIG.

Inside the space 42, partitions 78 and 78 are provided on both sides of the air passage 45 and protrude upward from the inclined surface portion 77. As shown in FIG. These partition parts 78 and 78 are provided radially along the radial direction from the outer periphery of the wall part 53 (dust waste outlet 54), for example in plan view.

In the space 42, a relatively wide region between these partitions 78, 78 communicates with the lower ends of all the second centrifugal sections 44 to each second centrifugal section 44. It consists of the relatively small dust in the impregnated air centrifuged by this, ie, the fine dust storage part 79 as a storage part which collects fine dust inside.

The relatively narrow arc-shaped region between the partitions 78 and 78 is a non-fine dust storage portion 80 which does not collect fine dust. The fine dust storage portion 79 is a region located below the second centrifugal separation portion 44 in the space portion 42, and the non-fine dust storage portion 80 is formed in the space portion 42. 2 is the position where the centrifugal separator 44 is not located (not opposed to the lower side of the second centrifugal separator 44), that is, the downstream of the downstream end of the air passage section 45, It is an area located upward (refer FIG. 3).

The fine dust storage portion 79 is provided from both sides of the rear side of the space portion 42 to the front side.

The non-fine dust storage part 80 is provided between the both ends of the fine dust storage part 79 of the space part 42.

The upper main body portion 39 includes the first air passage body 81, the second air passage body 82, the introduction air passage body 83, the separation air passage body 84, and the upper cover portion 85 integrally. It has a unit shape.

The first air passage body 81 includes a circular plate-shaped lower plate portion 91 constituting the lower end portion of the upper main body portion 39, an opening portion 92 opened in a circular shape at the center of the lower plate portion 91, The cylindrical part 93 as a ventilation part located in the center part of this opening part 92 and raising upwards from the lower board part 91, and it communicates with the back part of this cylinder part 93, and extends back and is located in the lower board part ( A duct part 94 serving as a communication vent connected to 91 and a cylindrical guiding part which rises upward from the edge of the opening part 92 concentrically with the tube part 93 on the outside of the tube part 93. Wind 95 is integrally provided.

And below the lower plate part 91, the sealing member 96 which closes the clearance gap of the upper part (space part 42) of the upper main-body part 39 and the lower main-body part 38 is provided.

The guiding part 95 is inclined upward so as to approach the center side of the opening part 92, ie, the outer periphery of the cylinder part 93.

The second air passage body 82 has a cylindrical air vent portion 98 as a rectifying portion whose lower end portion is hermetically connected to an upper end portion of the cylinder portion 93 of the first air passage body 81, and an upper end portion of the air vent passage portion 98. The flange portion 99 which extends in the shape of a sunshade which expands in diameter while being gradually curved upward from the outer side is integrally provided. The outer circumference of the flange portion 99 is in contact with the inner edge of the upper lid portion 85.

In addition, the introduction air passage body 83 has a cylindrical connecting cylinder portion 101 as a ventilation connecting portion which is hermetically connected to an upper end portion of the guiding portion 95 of the first air passage body 81, and the connection cylinder portion 101 A circular extension portion 102 extending from the upper end portion to the outer side of the flange portion 99 so as to face the lower portion of the flange 99, and covering the upper side of the separating air passage 84, and in the spiral cover shape of the extension portion 102. A plurality of turning portions 103 provided to form an upper end portion of the second centrifugal separating portion 44, an exhaust cylinder portion 104 serving as an exhaust portion integrally provided at the central portion of each of the turning portions 103 in a cylindrical shape, Branch introduction portion 105 which is provided in communication with these turning portions 103 along the tangential direction of each turning portion 103 along the upper portion of the extension portion 102 and introduces impregnated air into the turning portion 103. It is provided with integrally.

The upper end of the exhaust cylinder 104 is hermetically inserted and connected to the circular connection hole 106 opened in the flange 99 of the second air passage body 82.

The separating air passage 84 is a cylindrical connecting cylinder 107 connected to the upper end of the guiding portion 95 of the first air passage 81 from the outside of the connecting cylinder portion 101, and the connecting cylinder portion 107. A circular protrusion 108 extending outward from an upper end of the upper portion of the first air passage body and overlapping the upper portion of the duct portion 94 of the first air passage body 81, and protruding downward from an outer periphery of the protrusion 108. 2nd centrifugal separation which forms the outer wall part 109 which forms the outer periphery of the main body part 39, and the protrusion part 108 in the position inside this outer wall part 109, and forms the lower end part of the 2nd centrifuge part 44. As shown in FIG. A plurality of turning cylinders 110 serving as separation chamber portions as the sub main body are integrally provided.

These turning cylinder parts 110 are formed with a smaller diameter than the case part 47 of the 1st centrifugal part 41, and are formed so that a diameter may gradually become small from an upper end part to a lower end part.

The turning portions 103 of the introduction air passages 83 are respectively fitted to the upper ends of the turning cylinder portions 110, and the lower ends of these turning cylinder portions 110 are lower than the first air passage bodies 81. It is inserted in the insertion hole 111 opened circularly in the plate part 91, and is communicating with the space part 42. As shown in FIG.

The upper lid portion 85 covers the upper side of the introduction air passage 83 and is connected to the upper end of the separation air passage 84.

The ventilating air passage part 43 connects the first centrifugal separation part 41 and each 2nd centrifugal separation part 44 airtightly, and the opening part 92 and the vent part 93 of the 1st air passage body 81 And the ventilation passage 98 and the flange portion 99 and the introduction passage passage 83, the extension portion 102 and the swing portion of the second air passage body 82 and between the duct portion 94 and the It is airtightly partitioned between 103, and is communicated with each 2nd centrifugal separation part 44 (inside of the turning cylinder part 110) through the branch introduction part 105 and the turning part 103. As shown in FIG.

The vent air passage portion 43 is rectified from an upstream side (downstream side of the first centrifugal separation section 41) to a downstream side (upstream side of the second centrifugal separation section 44) while reducing the flow rate of the impregnated air. It is comprised so that it may flow.

Each second centrifugal separator 44 has a turning radius of the impregnated air smaller than the turning radius of the first centrifugal portion 41 and a turning speed of the turning speed of the first centrifugal portion 41. By making it larger, the dust (relatively) smaller than the dust centrifuged by the 1st centrifugation part 41 in the impregnated air which passed the 1st centrifugation part 41, ie, fine dust, is centrifuged and divided into the space part ( 42).

In other words, each of the second centrifugal separators 44 centrifugally separates dusts that could not be separated from the first centrifugal separator 41 in the impregnated air. The second centrifugal separator 44 is located above the first centrifugal separator 41, and includes the turning part 103, the exhaust cylinder part 104, and the separating air passage 84 of the introduction air passage body 83. It is partitioned between the turning cylinder part 110 of.

Introduces the impregnated air which has passed through the ventilating air passage part 43 from the branch introduction part 105 and the turning part 103 inside, and turns inside the turning part 110, and the centrifuged fine dust is separated from the lower end part. It is comprised so that it may fall to the part 42 and exhausts clean air which isolate | separated fine dust from the exhaust cylinder part 104 to the air path part 45. As shown in FIG.

In addition, these 2nd centrifugal separation parts 44 are substantially equal to each other in the position except the rear part (window part 45) around the central axis of the dust collector 26 (1st centrifugal part 41). It is spaced at intervals and arranged in an arc shape.

The air passage portion 45 is formed between each of the exhaust passage portions 104 of the second centrifugal separation portion 44 between the upper lid portion 85 and the flange portion 99 and the vent passage portion 98 of the second air passage body 82. The airtight compartment is partitioned by the tube part 93, the duct part 94, and the lower plate part 91 of the first air passage body 81.

That is, this air path part 45 communicates with the downstream side of all the 2nd centrifugation parts 44, and is a side of these 2nd centrifugation parts 44 from the upper side of each 2nd centrifugation part 44. FIG. In this embodiment, it is bent backward while continuing to reduce the flow rate of air to the center of the 2nd centrifugal separation part 44 arranged in circular arc shape (approximately circular shape).

The downstream end side of the air passage portion 45 serves as an exhaust opening 116 for discharging air from the dust collector 26, and is located between the second centrifugal separation portions 44 and 44 on the rear side. .

The exhaust opening 116 is hermetically connected to the intake opening in a state in which the dust collector 26 is attached to the main body case 25. Therefore, this exhaust opening 116 is hermetically connected to the suction side of the electric blower 35 via the intake opening.

Moreover, the exhaust opening 116 is located in the back side of the dust collector 26 which is the same side as the inlet 51, and the main body case 25 in the state which attached the dust collector 26 to the main body case 25. FIG. Opposes the front part of the main body part 31. For this reason, the handle part 52 is located in the vicinity of one side of this exhaust opening 116.

Next, a cleaning operation according to the first embodiment will be described.

When starting cleaning, first, the dust collecting apparatus 26 which integrally assembled the lower main-body part 38 and the upper main-body part 39 is attached to the main body case 25. As shown in FIG. That is, the dust collecting apparatus 26 is mounted and supported on the projecting support part 32 of the main body case 25, aligning the handle part 52 to the main body case 25 side, and is also supported by the latch support mechanism. By holding and holding the dust collecting device 26 against the main body case 25 to the rear side, the inlet 51 and the exhaust opening 116 of the dust collecting device 26 communicate with and open the intake opening of the main body case 25. And each is confidentially connected. Therefore, the dust collector 26 is attached to the main body case 25 in a state in which the dust collector 26 is hermetically connected between the suction side of the electric blower 35 and the main body suction port 36.

In addition, when the dust collector 26 is already attached to the main body case 25, these operations are unnecessary.

In this state, the pipe part 12 is connected to the main body suction port 36 of the vacuum cleaner main body 13 (main body case 25). Specifically, the connecting pipe 15 is inserted into and connected to the main body suction port 36, and the extension pipe 18 and the bottom brush 19 are sequentially connected to the front end side of the handle operating part 17. In this state, the setting button 22 of the handle operation part 17 is electrically connected to the control circuit part etc. in the cleaner main body 13 (body case 25).

And a user sets the operation mode of the electric blower 35 by operating the desired setting button 22 of the holding part 21. FIG. The control circuit unit controls the input of the electric blower 35 in correspondence with this set operation mode, and starts the electric blower 35 in the set operation mode.

The negative pressure generated by the start of the electric blower 35 is the intake opening, the exhaust opening 116, the air passage part 45, the second centrifugal separation portion 44, the air flow passage 43, and the first centrifugal separation portion. It acts on the pipe | tube part 12 through the 41, the inlet port 51, the communication opening part, the main body air flow path part, and the main body suction port 36. As shown in FIG.

By the action of this negative pressure, the user inhales dust with air from the front end (upstream) side of the bottom brush 19, the extension pipe 18, or the handle operation part 17. FIG.

The air containing this dust, that is, the impregnated air, is guided from the pipe portion 12 to the inlet port 51 via the main body suction port 36, the main body air passage part, and the communication opening, and the dust collector from the inlet port 51. In 26, that is, into the first centrifugal portion 41.

In the first centrifugal separator 41, the impregnated air turns the orbiting air flow path 58 so that particularly large dust in the impregnated air is centrifuged, falls along the inner circumferential surface 47a of the case part 47, and collects on the bottom. Lose. In addition, this large dust is conveyed from the turning air path 58 to the compression part 62 of the shade part 49 by a part of the flow of impregnated air, and air containing the ventilation opening 75 of the compression part 62 is carried out. By passing through, it is compressed in the compression section 62 by the compression filter 76.

The impregnated air from which the large dust was separated is filtered by the filter 67 when passing through the opening 66 of the shade part 49. In addition, the impregnated air which passed this filter 67 is conveyed to the air flow passage part 43.

The impregnated air is rectified by gradually decreasing the flow rate in the ventilating air passage portion 43, and each second centrifugal separation portion 44 along the tangential direction of the turning portions 103 from each branch introduction portion 105. Branched into the inside (in the turning tube 110).

In these second centrifugal separators 44 (orbiting cylinder section 110), the impregnated air is pivoted along the inner circumferential surface (inner circumferential surface of the turning cylinder section 110), whereby the fine dust in the impregnated air is centrifuged. It falls along the 2 centrifugation part 44 (inner peripheral surface of the turning cylinder part 110), and is collected by the fine dust storage part 79.

Further, the fine dust collected in the fine dust storage portion 79 is led downward along the inclined surface portion 77 and is located between the inclined surface portion 77 and the wall portion 53.

The clean air in which the fine dust is centrifuged is exhausted from the exhaust cylinder portion 104 of the center portion of each second centrifugal portion 44 to the air passage portion 45, and the flow rate is caused by the air passage portion 45. This is led backward while being reduced, and is exhausted from the exhaust opening 116 to the outside of the dust collector 26.

Thereafter, this air is sucked into the electric blower 35 through the intake opening, passes through the inside of the electric blower 35 while cooling, and becomes the exhaust wind, and the main body case 25 through the exhaust hole from the electric blower 35. Exhaust to outside).

When the cleaning is finished, the user operates the predetermined setting button 22 to lower the input of the electric blower 35 by the control circuit section to stop the electric blower 35.

When a certain amount of dust collects in the dust collector 26, the user removes the dust collector 26 from the main body case 25 by externally operating the locking support mechanism.

Then, the upper main body 39 is removed from the lower main body 38, and the shade 49 is removed from the dust disposal port 54 of the case 47 (FIG. 3), and the handle portion ( 52 is gripped, and the lower main body 38 is transported to the dust-collecting apparatus 26 to the disposal position, such as a waste bin.

Thereafter, by tilting the upper side of the case portion 47 downward, large dust collected in the compressed state in the first centrifugal separation portion 41 is disposed from the dust waste outlet 54 along the inner circumference of the wall portion 53. At the same time, the fine dust collected in the fine dust storage unit 79 falls along the outer periphery of the wall portion 53 from both sides of the partitions 78 and 78 and is discarded.

According to one embodiment described above, above the first centrifugal separator 41, a second centrifugal separator 44 for separating the fine dust in the impregnated air that has passed through the first centrifugal separator 41 is provided. In addition, the air passing above the first centrifugal separator 41 and passing through the second centrifugal separator 44 to the side of the second centrifugal separator 44 is directed to the electric blower 35. By providing the guide passage 45 to guide, the space is divided into a first centrifugal separation section 41 and a second centrifugal separation section 44 (fine dust storage section 79) to secure respective spaces of large dust and fine dust. It is possible to prevent excessively projecting upward of the air passage portion 45 while collecting effectively, thereby increasing the size of the dust collector 26.

In particular, since each of the second centrifugal separators 44 centrifugally separates the fine dust passing through the first centrifugal separator 41, the diameters of the second centrifugal separators 44 are smaller than those of the first centrifugal separator 41, respectively. On the side of the two centrifugal separators 44, dead spaces are likely to occur. Therefore, by using the dead space effectively and providing the air passages 45, the air passages 45 are positioned at approximately the same height as each of the second centrifugal separators 44, and these second centrifugal separators ( 44) does not protrude upward.

Moreover, by providing the handle part 52 in the vicinity of the exhaust opening 116 which is the downstream end of the air path part 45 of the 1st centrifugal part 41, the 2nd position is located in the vicinity of this handle part 52. In other words, the centrifugal separator 44 is not located, and the non-fine dust storage part 80 is located above the handle part 52, in other words, so that fine dust does not collect in the position near the handle part 52. do.

Therefore, in the dust collecting apparatus 26 which accommodates the fine dust centrifuged by each 2nd centrifugal separation part 44, and provided the fine dust storage part 79 which can be opened and closed on the upper side, the fine dust storage part 79 ), The upper side is opened, the handle 52 is gripped, and the lower body portion 38 (the first centrifugal portion 41 and the fine dust storage portion 79) is inclined to discard dust. The fine dust does not drop rapidly from the vicinity of the handle portion 52 to be taken off, so that the user's hand holding the handle portion 52 becomes difficult to be soiled by the fine dust.

In addition, since the introduction port 51 is the same side as the exhaust opening 116 which is the downstream end of the air passage part 45, the handle part 52 is located in the vicinity of the introduction port 51. For this reason, the upper side of the fine dust storage portion 79 is opened, and the handle 52 is gripped to tilt the lower main body portion 38 (the first centrifugal portion 41 and the fine dust storage portion 79). When the dust is discarded, since the inlet port 51 positioned on the handle portion 52 side is relatively upward, it is difficult to leak large dust collected in the first centrifugal separation unit 41 from the inlet port 51. .

In addition, since the inlet port 51 of the first centrifugal separator 41 is positioned on the rear side, which is the same side as the exhaust opening 116 which is the downstream end of the air passage part 45, the dust collector 26 is placed in the main body case ( When the dust collector 26 is held so as to be pressed to the rear side, which is the inlet 51 and the exhaust opening 116 side when attached to the 25, the connection between the inlet 51 and the communication opening on the main body case 25 side And the airtightness of each of the connection between the exhaust opening 116 and the intake opening on the main body case 25 side can be simultaneously obtained.

That is, when the inlet and the exhaust opening are located on opposite sides, the direction in which the inlet side is pressed toward the main body case side and the direction in which the exhaust opening side is pressed toward the main body case side are reversed, so that the dust collector 26 is replaced with the main body case ( It is not easy to secure the airtightness of the connection when it is attached to 25).

On the other hand, in this embodiment, the airtightness of the connection of the inlet port 51 side and the exhaust opening 116 side can be easily obtained only by pressing the dust collector 26 to the rear side which is one direction.

In addition, since the introduction port 51 and the exhaust opening 116 are respectively located at the rear side, the structure is not disposed at the front side of the case portion 47 of the first centrifugal separation portion 41 of the dust collector 26. The inside of the first centrifugal separation part 41 is not easily seen from the front of the case part 47 with the naked eye.

Therefore, it is easy for a user to visually confirm the storage state of the large dust collection in the 1st centrifugal separation part 41, and it is easy to acquire a feeling of accomplishment of cleaning, and to recognize the timing of dust disposal etc., and the convenience of use This is further improved.

In addition, in the said one Embodiment, not only a plurality of 2nd centrifugal separation parts 44, For example, you may arrange | position only one above the 1st centrifugal separation part 41. FIG.

In addition, as the vacuum cleaner 11, it is not limited to a canister type, For example, the upright type | mold which connected the bottom brush 19 to the lower part of the vacuum cleaner main body 13 of an up-down direction, or voluntarily (autonomous running) It may be a formula or the like.

In addition, although one Embodiment of this invention was described, this Embodiment is shown as an example and is not intending limiting the range of invention. This novel embodiment can be implemented in other various forms, and various omission, substitution, and a change can be performed in the range which does not deviate from the summary of invention. While this embodiment and its modifications are included in the scope and spirit of the invention, they are included in the invention described in the claims and their equivalents.

11: electric cleaner
25: body case
26: dust collector
35: electric blower
41: first centrifugal separator
44: second centrifuge
45: weathering section
51: inlet
52: handle portion
79: fine dust storage unit as storage unit

Claims (5)

A dust collector is detachably installed in a body case accommodating an electric blower, and is a dust collecting device that separates and collects dust from dust-containing air sucked by the operation of the electric blower.
A first centrifugal separator having an inlet for sucking impregnated air, and for centrifuging dust in the impregnated air sucked from the inlet;
A second centrifugal separator at least partly positioned above the first centrifugal separator and separating dusts smaller than dusts separated by the first centrifugal separator in the impregnated air passing through the first centrifugal separator;
A dust collecting device located above the first centrifugal separator and provided to the side of the second centrifugal separator and configured to guide air passing through the second centrifugal separator to the electric blower side. The method of claim 1,
The said dust collector is partitioned above the 1st centrifugal part, is equipped with the accommodating part which can open and close the upper side while accommodating the dust centrifuged by the 2nd centrifugal part,
The said 1st centrifugal separator has the handle part located in the vicinity of the downstream end of an air path part, The dust collecting apparatus characterized by the above-mentioned. 3. The method according to claim 1 or 2,
The said dust collector is partitioned above the 1st centrifugal part, is equipped with the accommodating part which can open and close the upper side while accommodating the dust centrifuged by the 2nd centrifugal part,
The said 1st centrifugal separator has the handle part located in the vicinity of the inlet port, The dust collector characterized by the above-mentioned. A dust collecting device detachably installed in a main body case accommodating an electric blower, having an axial direction, and separating dust from dust contained in the air sucked by the operation of the electric blower, and collecting the dust.
A first centrifugal separator having an inlet for sucking impregnated air, and for centrifuging dust in the impregnated air sucked from the inlet;
A second centrifugal part at least partially positioned at one end side in the axial direction with respect to the first centrifugal separator, and separating dusts smaller than dusts separated by the first centrifugal separator in the impregnated air passing through the first centrifugal separator; Separation unit,
It is provided with the air flow path part which is one end side of the said axial direction with respect to the said 1st centrifugal part, and is located to the side of the said 2nd centrifugal part, and guides the air which passed this 2nd centrifugal part to the said electric blower side. Featured dust collector. Body case which accommodated electric blower,
An electric vacuum cleaner comprising the dust collecting device according to claim 1 or 4, which is detachably attached to the main body case and separates and collects dust from the contained air sucked by the operation of the electric blower.

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