WO2015025483A1

WO2015025483A1 - Dust collection device

Info

Publication number: WO2015025483A1
Application number: PCT/JP2014/004042
Authority: WO
Inventors: 星出　真一; 羽田野　剛; 宮原　敏文
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2013-08-20
Filing date: 2014-08-01
Publication date: 2015-02-26
Also published as: TWI637717B; JP6349557B2; TW201521658A; JP6500209B2; JP2018043023A; CN105358028A; JP2015061590A

Abstract

A dust collection device is provided with: a body (1) which has a suction opening (2) for sucking in dust; an electric blower (11) which generates suction air flow; a dust collection chamber (3) which receives dust sucked in from the suction opening (2); and an internal flow passage (16) which extends from the suction opening (2) into the body (1) and which comprises a duct (14) and a passage (15). The duct (14) is formed in a shape which causes the cross-sectional area of the duct (14) to gradually decrease from the suction opening (2) toward the passage (15) inside the body (1). As a result of this configuration, the dust collection device efficiently conveys dust to the dust collection chamber (3).

Description

Dust collector

The present invention relates to a dust collector.

Various devices and tools have been commercialized as tools for cleaning the floor. For example, there are vacuum cleaners and mops for cleaning the floor. The said vacuum cleaner slides the nozzle connected to the hose tip on the floor. Then, dust attached to the floor is sucked from the nozzle and collected in a paper pack or the like inside the main body through a hose to clean the floor surface.

Also, as a technique related to a cleaning tool, a vacuum cleaner that removes dust attached to a mop or the like is disclosed (for example, see Patent Document 1).

The vacuum cleaner described in Patent Document 1 has a back portion for storing the dust collection pack at the bottom of the storage case. A case front member having a suction opening that is detachably held is disposed on the front surface of the inner part. A dust collection pack is held on the inner upper part of the suction opening. Further, a suction device for holding a blower or the like is disposed at the upper part of the inner portion, and the suction device and the suction opening are connected to each other. The suction opening is provided with a comb-like member composed of shafts having different lengths. Then, a mop pile group or the like is pressed against the comb-like member to remove dust attached to the mop, and the dust is collected by the dust pack through the suction opening.

However, the vacuum cleaner described in Patent Document 1 is configured such that the suction path from the suction opening to the dust collection pack is short and rises rapidly in the vertical direction. For this reason, it is difficult to collect heavy dust such as pebbles. In particular, when the dust collection pack is clogged, there is a problem that the dust collection performance is extremely lowered. Moreover, since the area of the suction opening is small, there is a problem that a vortex is generated in the suction air before the dust collection pack and noise is generated.

JP 2012-245318 A

The present invention provides a dust collector that easily removes dust adhering to a mop or the like and suppresses noise when removing dust.

That is, the dust collecting apparatus of the present invention includes a main body having a suction port for sucking dust, an electric blower for generating suction air, a dust collecting chamber for storing dust sucked from the suction port, and an inside of the main body from the suction port. An internal flow path comprising a duct and a passage extending to And a duct is comprised by the shape where a cross-sectional area becomes small gradually toward the channel | path inside a main body from a suction opening. Thereby, dust can be efficiently conveyed to the dust collection chamber. Furthermore, it is possible to realize a dust collector that can easily collect dust having a large mass such as pebbles.

FIG. 1 is a perspective view of a dust collector in an embodiment of the present invention. FIG. 2 is a side view of the dust collector in the same embodiment. FIG. 3 is a rear view of the dust collector in the same embodiment. FIG. 4 is a schematic diagram showing a state in which the dust collector in the same embodiment is cut at the center. FIG. 5 is an exploded perspective view showing a duct and a passage constituting an internal flow path of the dust collector in the same embodiment. FIG. 6 is a partial plan view showing the shape and arrangement of the holes of the dust collector in the same embodiment. FIG. 7 is a partial plan view showing the shape and arrangement of the holes of the dust collector in the same embodiment. FIG. 8 is a partial plan view showing the shape and arrangement of the holes of the dust collector in the same embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited to embodiment shown below.

(Embodiment)
Hereinafter, a dust collector according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3.

FIG. 1 is a perspective view of a dust collector in an embodiment of the present invention. FIG. 2 is a side view of the dust collector in the same embodiment. FIG. 3 is a rear view of the dust collector in the same embodiment.

As shown in FIGS. 1 to 3, the dust collector of the present embodiment includes a main body 1, a dust collecting chamber 3 housed in the main body 1, a hose 4 detachably connected to the main body 1, and the like. Has been.

The main body 1 is provided with a suction port 2 that opens forward on the lower side of the front surface and sucks up dust. The dust collection chamber 3 is provided above the suction port 2 so that it can be pulled out from the front side of the main body 1. When the user pulls out the dust collecting chamber 3, the dust collected in the main body 1 can be taken out and discarded. In the dust collection chamber 3, for example, a dust collection bag 12 (see FIG. 4) is set, and dust is collected in the dust collection bag.

The hose 4 is rotatably mounted on the upper surface of the main body 1 at a substantially central portion (including the central portion) above the dust collection chamber 3. The hose 4 is made of a soft material such as an elastomer, rubber, or polyvinyl chloride (PVC), and is configured to be stretchable and foldable.

The power button 5 shown in FIG. 1 is disposed on the upper surface of the main body 1. When the user presses the power button 5, the dust collector starts and stops the dust suction operation.

Further, as shown in FIG. 2, a handle 8 is integrally provided at the tip of the hose 4. The user can easily attach and detach the hose 4 from the main body 1 by holding the handle 8 of the hose 4.

For example, a curved inclined surface 7 is formed on the upper back side of the main body 1 (behind the upper surface of the main body 1) so as to descend toward the rear of the main body 1.

One end of the handle 6 is on the upper surface of the main body 1 (specifically, the connecting portion between the top and the upper surface of the inclined surface 7 and the rear portion of the upper surface), and the other end is on the inclined surface 7 (specifically, the inclined surface 7. Connected to the lower part). The outer periphery of the handle 6 is formed, for example, in an inverted U-shaped curved surface from one end side to the other end side. As a result, the hose 4 has a substantially inverted U shape (including an inverted U shape) when the main body 1 is viewed from the side surface (see FIG. 2) along the curved surface shape of the handle 6. Placed in.

In addition, a substantially inverted triangle (including inverted triangle) space is formed between the handle 6 and the slope 7. Thus, the user can easily move the dust collector by holding the handle 6.

Further, as shown in FIG. 3, for example, exhaust ports 9 are formed on the left and right sides of the main body 1. The exhaust port 9 distributes and exhausts exhaust discharged from the main body 1 toward the left and right rear sides of the main body 1. Further, for example, a power plug 10 is provided below the back side of the main body 1. The user can pull out the power plug 10 and connect it to a commercial power source.

Thus, the dust collector of the present embodiment is configured.

Hereinafter, the internal configuration and operation of the dust collector in the present embodiment will be described with reference to FIG. FIG. 4 is a schematic diagram showing a state in which the dust collector in the same embodiment is cut at the center.

As shown in FIG. 4, an electric blower 11 is disposed in the approximate center (including the center) inside the main body 1. Above the electric blower 11, for example, a dust collection chamber 3 containing a dust collection bag 12 is disposed. An opening 13 connected to one end of the hose 4 and communicating therewith is formed above the dust collection chamber 3. A slope opening 17 connected to and communicates with the other end of the hose 4 is provided below the slope 7.

Also, an internal flow path 16 composed of a duct 14 and a passage 15 is provided between the suction port 2 and the slope opening 17 of the main body 1. The duct 14 is provided from the suction port 2 below the front surface of the main body 1 to the rear of the dust collector. The passage 15 is provided so as to communicate with the duct 14 upward from the duct 14 at the rear of the dust collector. And it is comprised so that the dust attracted | sucked from the suction opening 2 may pass through the inside flow path 16 with the suction | inhalation wind which generate | occur | produces with the electric blower 11. FIG.

Further, as described above, the tip 4 a on the other end side of the hose 4 is formed in the opening on the opposite side of the suction port 2 side of the internal flow path 16, that is, the slope opening 17 provided on the lower side of the slope 7. Connected.

Accordingly, dust sucked from the suction port 2 in a state where the hose 4 shown in FIG. 4 is housed in the main body 1 is collected through the internal flow path 16, the slope opening 17, the hose 4, and the opening 13. 12 is collected.

On the other hand, the user can also remove the tip 4 a on the other end side of the hose 4 from the slope opening 17 and suck in dust from the tip 4 a of the hose 4. In this case, dust to be collected is collected in the dust bag 12 through the hose 4 and the opening 13. This corresponds to, for example, a case where the user sucks dust attached to the upper surface of the mop with the tip of the hose 4 and collects the dust in the dust bag 12 through the above path.

As described above, the operation of the dust collector of the present embodiment is performed.

Hereinafter, in the dust collector of the present embodiment, a structure for preventing sound generated in the internal flow path will be described with reference to FIG. 4 and FIG.

FIG. 5 is an exploded perspective view showing a duct and a passage constituting the internal flow path of the dust collector in the same embodiment.

As shown in FIGS. 4 and 5, the suction port 2 is provided in the lower part of the main body 1 in the vicinity of the floor surface. The lateral width of the suction port 2 is formed to be substantially the same (including the same) or slightly narrower than the lateral width of the front surface of the main body 1.

Further, the duct 14 described above is provided from the suction port 2 to the inside of the main body 1. As shown in FIG. 4, the duct 14 is configured to gently lift upward, for example, from the inside of the main body 1, that is, from the front to the rear of the main body 1. At this time, the duct 14 is provided in a shape in which the cross-sectional area gradually decreases from the suction port 2 side toward the passage 15 connected to the duct 14. Thereby, the duct 14 and the channel | path 15 are connected ensuring airtightness. Here, specifically, the reduction in the cross-sectional area corresponds to the case where the lateral width of the duct 14 is reduced.

In addition, the above-mentioned “toward the inside of the main body 1” is not limited to the meaning of “from the suction port 2 toward the rear of the main body 1” as shown in FIG. 4. For example, when the duct 14 is formed from the suction port 2 into the main body 1, how far the duct 14 continues and how long the duct 14 is is not limited.

That is, the duct 14 is not shown in FIG. 5 correctly, but is formed in, for example, a substantially trumpet shape (including a trumpet shape) when viewed from above. As a result, a shape in which the cross-sectional area gradually narrows from the inlet (the suction port 2 side) to the outlet (for example, the connection side with the passage 15) of the duct 14 is realized. In the above description, the substantially trumpet shape has been described as an example. However, the substantially trumpet shape is an example, and the present invention is not particularly limited to this shape. For example, the side surface 14b of the duct 14 shown in FIG. 5 may have a curved shape and a cross-sectional area that gradually becomes narrower.

Due to the configuration of the duct 14, the vacuum pressure (suction force) gradually increases from the inlet of the suction port 2 toward the back of the duct 14 (for example, the connection side with the passage 15). As a result, for example, large dust such as pebbles with large mass can be sucked in smoothly and collected.

Also, a plurality of holes 18 are formed in the upper wall 14a of the internal space of the duct 14 shown in FIG. Further, a wall surface is formed upward from the upper wall 14a of the duct 14 so as to surround the hole 18, and a substantially trapezoidal (including trapezoidal) concave portion 21 shown in FIG. 5 is formed. A filter 19 having a substantially trapezoidal shape (including a trapezoidal shape) is fitted in the recess 21. Further, a cover body 20 is provided so as to cover the recess 21 and accommodate the filter 19.

The filter 19 is mainly composed of a material having a low density, such as a nonwoven fabric or urethane foam. In this case, a material with a coarse density is preferable, but a filter may be formed by combining a material with a coarse density and a material with a relatively large density. At this time, it is preferable to provide a material having a low density at a position facing the hole 18. Thereby, the silencing effect by the filter 19 can be enhanced.

Hereinafter, the silencing effect by the above configuration will be described in detail.

That is, when air is sucked in, the air slides on the end face of the suction port 2 or a rib provided on the end face, thereby generating noise in a high frequency region. The generated noise is absorbed into the filter 19 from the hole 18 provided in the upper wall 14a of the duct 14. Noise absorbed from the holes 18 diffuses as it passes through the filter 19. This reduces sound energy. As a result, harsh noise is reduced by the filter 19.

In addition, the silencing effect of the above configuration increases in proportion to the size of the opening area of the hole 18. In other words, if the opening area of the hole 18 is increased, a greater effect can be obtained. Furthermore, the greater the volume of the filter 19, the greater the silencing effect. Therefore, a large silencing effect can be obtained by increasing the opening area of the hole 18 and the volume of the recess 21.

Hereinafter, three examples of the specific configuration for reducing noise in the dust collector of the present embodiment will be described with reference to FIGS. 6 to 8.

FIG. 6 is a partial plan view showing the shape and arrangement of the holes of the dust collector in the same embodiment. FIG. 7 is a partial plan view showing the shape and arrangement of the holes of the dust collector in the same embodiment. FIG. 8 is a partial plan view showing the shape and arrangement of the holes of the dust collector in the same embodiment.

First, as shown in FIG. 6, the first example is a configuration in which holes 18 having a uniform size are arranged vertically and horizontally. At this time, the hole 18 preferably has a diameter of about 0.5 mm to about 10 mm, for example. This is because, if the diameter of the hole 18 is larger than φ10 mm, the sound passing through the hole 18 is increased and the sound insulation effect in the portion where the hole 18 is not opened is reduced. However, it is preferable to provide the smallest possible hole 18 because a larger opening area can be secured. Thereby, compared with the case where the holes 18 are arranged irregularly, a large opening area can be secured and the silencing effect can be enhanced.

Next, as shown in FIG. 7, the second example is a configuration in which a plurality of holes 18 are arranged in a staggered manner while being shifted from each other. Specifically, the plurality of holes 18 are composed of a plurality of rows and a plurality of columns, and the positions of the holes 18 in the odd-numbered rows and the even-numbered rows or the odd-numbered columns and the even-numbered columns are shifted from each other. Thereby, the number of the holes 18 can be increased even with the holes 18 having the same size as the first example. As a result, a larger opening area can be ensured and a higher noise reduction effect can be obtained.

Furthermore, as shown in FIG. 8, the third example has a configuration in which a plurality of holes 18 are arranged by combining

holes

18a and 18b having different large and small opening areas. At this time, when the difference between the opening areas of the large and small holes 18 is small, the hole 18b having a small opening area is arranged beside the hole 18a having a large opening area. Thereby, a large opening area is obtained. Further, when the difference in opening area between the large and small holes 18 is large, for example, a plurality of holes 18b having a small opening area may be arranged beside the hole 18a having a large opening area.

Further, in the present embodiment, the holes 18 formed in the upper wall 14a of the duct 14 are provided so that there are many inlet portions on the suction port 2 side, and the holes 18 become smaller toward the back. This is because the duct 14 is provided in a substantially trumpet shape as described above. Thereby, after absorbing the noise of a high frequency area | region in the entrance part of the duct 14, the effect which reduces sound energy gradually as it goes to the back of the duct 14 is acquired.

As described above, the dust collector of the present invention includes a main body having a suction port for sucking dust, an electric blower for generating suction air, a dust collection chamber for storing dust sucked from the suction port, and a suction An internal flow path including a duct and a passage extending from the mouth to the inside of the main body. And a duct is comprised by the shape where a cross-sectional area becomes small gradually toward the channel | path inside a main body from a suction opening. Thereby, dust can be efficiently conveyed to the dust collection chamber. Furthermore, it is possible to realize a dust collector that collects large-sized dust such as pebbles.

In the dust collector of the present invention, a plurality of holes may be formed in the upper wall of the duct, and a filter for absorbing sound may be disposed above the plurality of holes. Thereby, the noise generated in the duct can be diffused into the filter through the hole. As a result, noise in the high frequency region can be effectively reduced.

In addition, the dust collector of the present invention may be provided with a concave portion in which the filter is disposed above the plurality of holes, and a cover body that covers the filter in the concave portion. Thereby, while holding a filter stably, the noise of a high frequency area can be confine | sealed in a recessed part, and it can further reduce.

Further, in the dust collector of the present invention, the duct may be configured to have a shape that is gradually inclined upward toward the passage inside the main body. Thereby, the flow of suction air can be made smooth and dust can be efficiently carried to the dust collection chamber. As a result, even large dust such as pebbles can be easily collected.

Further, in the dust collector of the present invention, the filter may be configured in a shape in which the cross-sectional area gradually decreases toward the inside of the main body. Accordingly, the suction force is increased toward the inside of the main body, and the dust can be more efficiently carried to the dust collection chamber.

Further, in the dust collector of the present invention, a plurality of holes may be provided on the upper wall of the duct in vertical and horizontal alignment. Thereby, the area of a hole can be taken large. As a result, noise can be effectively reduced.

In the dust collector of the present invention, a plurality of holes may be provided on the upper wall of the duct in a staggered manner. Thereby, a larger opening area can be ensured. As a result, noise can be further reduced.

Moreover, the dust collector of the present invention may be provided with a plurality of holes having different opening areas on the upper wall of the duct. Thereby, a still larger opening area can be secured. As a result, the noise reduction effect can be further improved.

The present invention is widely applicable to dust collectors that can take dust from a suction port.

DESCRIPTION OF SYMBOLS 1 Main body 2 Suction port 3 Dust collection chamber 4 Hose 4a tip 5 Power button 6 Handle 7 Slope 8 Handle 9 Exhaust port 10 Power plug 11 Electric blower 12 Dust collection bag 13 Opening 14 Duct

14a Upper wall

14b Side surface 15 Passage 16 Internal flow Road 17

Slope opening

18, 18a, 18b Hole 19 Filter 20 Cover body 21 Recess

Claims

A main body having a suction port for sucking dust;
An electric blower that generates suction air;
A dust collection chamber for storing dust sucked from the suction port, and an internal flow path consisting of a duct and a passage extending from the suction port to the inside of the main body,
The said duct is a dust collector comprised in the shape where a cross-sectional area becomes small gradually toward the said channel | path inside the said main body from the said suction opening.
The dust collector according to claim 1, wherein a plurality of holes are formed in an upper wall of the duct, and a filter that absorbs sound is disposed above the plurality of holes.
The dust collector according to claim 2, wherein a concave portion in which the filter is disposed is formed above the plurality of holes, and a cover body that covers the filter is provided in the concave portion.
The dust collector according to claim 1, wherein the duct is configured to have a shape that is gradually inclined upward toward the passage inside the main body.
The dust filter according to claim 2, wherein the filter is configured to have a shape in which a cross-sectional area gradually decreases toward the inside of the main body.
The dust collector according to claim 2, wherein the plurality of holes are provided in an upper wall of the duct in vertical and horizontal alignment.
The dust collector according to claim 2, wherein the plurality of holes are provided on the upper wall of the duct in a staggered manner.
The dust collector according to claim 2, wherein the plurality of holes having different opening areas are provided in an upper wall of the duct.