JP2004283213A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner that improves the dust collection performance by preventing a drop in suction force and is downsized. <P>SOLUTION: The vacuum cleaner includes a first dust separation section 6 having an opening and an inflow opening 9 that makes sucked dust flow thereinto, separating dust from a suction air and catching the dust, a second dust separation section 7 arranged in the first dust separation section, having an inflow opening 10 making the dust after passing through the first dust separation section 6 flow thereinto and separating the dust after passing the first dust separation section 6 from the suction air, an accumulation section arranged in the first dust separation section 6 and accumulating the dust separated by the first dust separation section 6, and an opening and closing lid 17 covering the opening of the first dust separation section 6. The accumulation section is formed of a partition wall 22 formed in the first dust separation section 6 and a partition wall 25 formed in the opening and closing lid 17. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a dust collecting structure for a vacuum cleaner.
[0002]
[Prior art]
The configuration of a conventional vacuum cleaner will be described with reference to FIG. A dust collection chamber 31 having a bottom is provided, and an intake port 32 for sucking air inside is provided on a side wall of the dust collection chamber 31 in a tangential direction. A cover 34 is provided so as to cover the upper end opening 33 of the dust collection chamber 31, and an exhaust port 35 is provided in the cover 34. A filter 36 is attached so as to cover the upper end opening 33 of the dust collection chamber 31. When the electric blower 37 is operated, dust is sucked through the suction portion 38, is sucked into the dust collection chamber 31 through the suction port 32, is centrifuged in the dust collection chamber 31, and is discharged from the discharge port 35 through the filter 36. (See Patent Document 1).
[0003]
[Patent Document 1]
JP-A-2001-104223
[Problems to be solved by the invention]
However, in the above-described conventional configuration, the dust sucked from the intake port 32 gradually accumulates and accumulates in the dust collection chamber 31, adheres to the filter 36, causes clogging, and the suction force is increased without sufficiently sucking the dust into the dust collection chamber 31. Sometimes it declined. Further, in order to prevent the clogging, the area of the filter 36 is sometimes increased, but there is a problem that the dust collecting chamber 31 itself becomes large and the vacuum cleaner itself becomes large.
[0005]
An object of the present invention is to solve the above-mentioned problem, and an object of the present invention is to provide a vacuum cleaner that prevents dust from abruptly decreasing, improves dust collection performance, and realizes downsizing.
[0006]
[Means for Solving the Problems]
The present invention for achieving the above object has a first dust separating portion having an opening and an inflow port through which sucked dust flows, separating and collecting dust from a suction wind, and a first dust separating portion inside the first dust separating portion. A second dust separating unit, which is disposed at a second position, has an inflow port through which dust that has passed through the first dust separating unit flows, and separates dust that has passed through the first dust separating unit from suction air. A storage unit disposed in the first dust separation unit for storing dust separated by the first dust separation unit; and an opening / closing lid for covering an opening of the first dust separation unit; The partition is formed by a partition wall formed in the first dust separating portion and a partition wall formed in the opening / closing lid. When the opening / closing lid is opened, the opening of the first dust separating portion is set to a lower side and collected. Even if the dust part is left as it is on the surface to be cleaned, the partition wall formed in the first dust separation part is Since no hitting cleaning surface choice directly, without the damage occurs, it can be improved durability and usability.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
According to a first aspect of the present invention, there is provided a first dust separating portion having an opening and an inflow port through which sucked dust flows, separating and collecting dust from a suction wind, and the inside of the first dust separating portion. A second dust separating unit, which is disposed at a second position, has an inflow port through which dust that has passed through the first dust separating unit flows, and separates dust that has passed through the first dust separating unit from suction air. A storage unit disposed in the first dust separation unit for storing dust separated by the first dust separation unit; and an opening / closing lid for covering an opening of the first dust separation unit; The partition is formed by a partition wall formed in the first dust separating portion and a partition wall formed in the opening / closing lid. When the opening / closing lid is opened, the opening of the first dust separating portion is set to a lower side and collected. Even if the dust part is left on the surface to be cleaned or the like, the partition wall formed in the first dust separation part is Since no striking surface Choice directly, without the damage occurs, can be improved durability and usability.
[0008]
The invention according to claim 2 of the present invention is characterized in that the partition wall formed on the opening / closing lid is formed closer to the opening / closing axis of the opening / closing lid than the partition wall of the first dust separating portion, and fine dust from between the partition walls. Can be further suppressed, dust can be prevented from adhering to the inflow port of the second dust separating portion, and the dust collecting performance that does not easily clog and the suction force does not rapidly decrease can be obtained.
[0009]
According to the third aspect of the present invention, the tip end section of the partition wall formed on the opening / closing lid is formed in a substantially L-shape, so that leakage of fine dust from between the partition walls is further suppressed, and the second dust separation is performed. It is possible to prevent dust from adhering to the inflow port of the part, and to obtain dust collection performance in which clogging is hardly caused and suction power is hardly reduced sharply.
[0010]
According to the invention of claim 4 of the present invention, the elastic body is disposed between the partition walls, and the leakage of fine dust from between the partition walls is further suppressed, and the dust to the inflow port of the second dust separating portion is prevented. Adhesion can be prevented, and dust collecting performance in which clogging is unlikely to occur and suction power does not readily decrease can be obtained.
[0011]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
[0012]
FIG. 1 is a front view of the vacuum cleaner. The vacuum cleaner includes a suction device 1 for sucking dust on the floor surface at a lower portion, a cleaner body 18 having a built-in electric blower 3 for generating a suction wind, an extension pipe 2 having one end connected to the suction device 1, and a cleaner body. A dust collecting portion 4 that is detachable from 18 and collects dust, and a suction passage communicating the dust collecting portion 4 and the suction tool 1 is formed through the extension pipe 2, and the extension pipe 2 and the dust collection section 4 are formed. And a hose 5 for connecting Further, the cleaner body 18 is provided with a discharge hole (not shown) for discharging exhaust gas generated by the electric blower 3.
[0013]
FIG. 2 is a configuration diagram of the first dust separation unit 6, the centrifugal separation unit 7 that is the first dust separation unit, and the dust collection lid 8 that constitute the dust collection unit 4 of the vacuum cleaner. The first dust separating section 6 has an opening below and is covered by an openable and closable lid 17. Further, the first dust separating section 6 is provided with a first inlet 9 through which an airflow containing dust flows from the suction tool 1 via the hose 5. The centrifugal separator 7 has a smaller diameter than the first dust separator 6, has a substantially circular space inside, and is disposed in the first dust separator 6. The dust collection lid 8 has a substantially cylindrical shape having a soft material such as an elastomer on its outer periphery, and is disposed downstream of the centrifugal separation unit 7 on the intake side. Reference numeral 12 denotes a first communication port which communicates a suction port (not shown) of the electric blower chamber 3 with the inside of the centrifugal separator 7 and is covered with a filter. Reference numeral 10 denotes a substantially arc-shaped second inlet into which an airflow containing dust flows into the centrifugal separator 7, which is covered with a filter and is provided at a position not opposed to the first inlet 9. . The second inlet having a substantially arc shape is detachable, and the filter can be cleaned.
[0014]
Numeral 14 denotes a substantially cylindrical wall provided in the centrifugal separator 7, and numeral 11 denotes an inner wall of the substantially cylindrical wall 14 provided in the centrifugal separator, and includes dust flowing from the second inlet 10. The swirling portion 11 has a substantially arc shape and is provided to form a swirl passage 11a for swirling the airflow along the inner wall of the wall portion 14 of the centrifugal separation portion 7. Only the inside of the substantially arc-shaped turning part 11 is configured to communicate with the first communication port 12. Reference numeral 15 denotes a first opening provided on the bottom surface of the centrifugal separation unit 7 on the downstream side of the swirling portion on the downstream side of the swirling portion 11a. Reference numeral 16 denotes a guide portion extending from the swirling portion 11 and formed so as to be in contact with the inner wall of the wall portion 14 of the centrifugal separation portion 7. A configuration in which only the intake downstream side of the swirl passage 11 a communicates with the first opening portion 15. And
[0015]
FIG. 3 is a view taken in the direction of the arrow A in FIG. Reference numeral 20 denotes a fine dust accumulation unit which communicates with the first opening 15 and is integrally formed below. A high-density dust storage unit 13 is disposed in the first dust separation unit 6 and stores high-density dust separated from the suction wind in the first dust separation unit 6. 1 is a low-density dust accumulation unit that is arranged in the dust separation unit 6 and accumulates dust of low-density dust separated from the suction wind in the first dust separation unit 6. As shown in the cross-sectional view, the partition is defined by a partition wall 22 provided in the first dust separation unit 6 and a partition wall 25 provided in the opening / closing lid 17 covering the opening of the first dust separation unit 6. . The high-density dust accumulation part 13 is arranged farther from the first inlet 9 than the low-density dust accumulation part 24. The low-density dust accumulation unit 24 has a second opening 21, and the second opening 21 is covered with a filter 23. Reference numeral 19 denotes a second communication port through which a suction port (not shown) of the electric blower 3 communicates with the low-density dust accumulation unit 24 via the second opening 21. That is, the second opening 21 plays a role of a communicating part that allows a suction port (not shown) of the electric blower 3 to communicate with the low-density dust accumulation part 24.
[0016]
FIGS. 5 to 7 are cross-sectional views of a configuration example of the partition wall of the dust collecting unit 4. Reference numeral 25b shown in FIG. 5 denotes a case where the partition wall is disposed closer to the rotation shaft 26 of the opening / closing lid 17 than the partition wall 22 disposed in the first dust separating section 6. Further, reference numeral 25c shown in FIG. 6 denotes a case where the sectional end of the partition wall of the opening / closing lid 17 is formed in a substantially L shape. In addition, reference numeral 27 shown in FIG. 7 denotes an elastic body provided above the partition wall 25a, and is a case where the elastic body is sandwiched between the partition wall 22 and the partition wall 25a provided in the first dust separating portion 6. . In any of the configurations, the partition wall 22 disposed in the first dust separation unit 6 does not protrude from the lower end of the first dust separation unit 6, so that the opening and closing lid 17 is opened and the second The partition wall 22 formed in the first dust separation unit directly hits the surface to be cleaned, etc., even if the lower opening side of the first dust separation unit 6 is placed on the surface to be cleaned, etc. Therefore, durability and usability can be improved without breakage or the like.
[0017]
The operation of the above configuration will be described. The dust sucked from the suction tool 1 passes through the hose 5 and is sucked into the first dust separating unit 6 from the first inlet 9. The suction air containing dust sucked into the first dust separation unit 6 from the first inlet 9 turns along the substantially cylindrical wall surface 14 provided in the centrifugal separation unit 7. In the first dust separating section 6, as shown in FIG. 3, a suction force acts on the low-density dust accumulation section 24, so that large-volume dust is easily subjected to the suction force and heavy. Since the dust has a large centrifugal force, the high-density dust has a large centrifugal force, and the low-density dust has a small centrifugal force. Thereby, the high-density dust is accumulated in the high-density dust accumulation unit 13 located farther than the low-density dust accumulation unit 24 with respect to the first inlet 9 after passing through the open end of the partition wall 22, The low-density dust is stored in the low-density dust storage unit 24 near the first inlet 9.
[0018]
Further, since the second opening 21 communicating the inside of the low-density dust accumulation unit 24 and the suction port (not shown) of the electric blower 3 is provided, the low-density dust accumulated in the low-density dust accumulation unit 24 is provided. Are accumulated from the second opening side by the suction force. In particular, low-density dust has a large amount of dust having good air permeability such as cotton and tissue having a small weight and a large volume, and a filter 23 covering the second opening 21 is provided at the lower end of the second opening 21 (low-density). Since the filter 23 is provided at a position at a predetermined height from the lower end of the dust accumulation unit 24), clogging of the filter 23 can be prevented, thereby improving dust collection performance.
[0019]
Further, the high-density dust having a small volume that easily causes clogging of the filter 23 is surrounded by the partition wall 22 provided in the first dust separating unit 6 and the partition wall 25a provided in the opening / closing lid 17, Since the dust is accumulated in the high-density dust accumulation section 13 where no suction force acts and does not adhere to the filter 23, clogging of the filter 23 can be prevented, so that dust collection performance can be improved.
[0020]
Further, the suction action in the low-density dust accumulation unit 24 can prevent the low-density dust accumulated in the low-density dust accumulation unit 24 from rising. Dust can be prevented from adhering and dust collection performance can be improved. The suction air containing dust sucked into the first dust separation unit 6 from the first inlet 9 passes through the substantially arc-shaped second inlet filter provided on the substantially cylindrical wall 14 of the centrifugal separator 7. Since it turns along, the dust collection performance can be improved by cleaning the filter.
[0021]
Dust having a large mass and volume is collected in the first dust separation unit 6, while fine dust having a small mass and volume is sucked into the centrifugal separation unit 7 through the second inlet 10. The airflow including dust sucked into the centrifugal separation unit 7 is swirled in a swirl passage 11 a formed by the inner wall of the wall surface 14 of the centrifugal separation unit 7 and the substantially circular swirl unit 11. The airflow and the dust are separated, and the airflow separated from the dust then flows into the swirling portion 11 from an open portion of the swirl passage 11a on the downstream side of the intake air. Only one of the air blowers communicates with the first communication port 12 which communicates with the suction port (not shown) of the electric blower 3, so that the air flow is outside the cleaner main body 18 via the first communication port 12. Is discharged to
[0022]
On the other hand, the dust separated from the airflow is accumulated in the fine dust accumulation unit 20 through the first opening 15. Since the fine dust accumulation unit 20 is covered with the opening / closing lid 17 and is closed, no airflow occurs in the fine dust accumulation unit 20 and the fine dust accumulation unit 20 is reliably accumulated inside. Therefore, it is possible to prevent the dust that has been centrifuged in the centrifugal separation unit 7 and accumulated in the fine dust accumulation unit 20 from flowing back to the centrifugal separation unit 7 again. In addition, since the high-density dust accumulation unit 13, the low-density dust accumulation unit 24, and the fine dust accumulation unit 20 each having a lower opening are arranged horizontally in the first dust separation unit 6, When the opening / closing lid 17 is opened, the dust accumulated in each of the high-density dust accumulation unit 13, the low-density dust accumulation unit 24, and the fine dust accumulation unit 20 simultaneously drops, and is collected by the first dust separation unit 6. It can be discarded at once with the dust that has been used.
[0023]
【The invention's effect】
Advantageous Effects of Invention According to the present invention, it is possible to provide a vacuum cleaner that improves dust collection performance by preventing a suction force from suddenly lowering and realizes downsizing.
[Brief description of the drawings]
FIG. 1 is an overall view of a vacuum cleaner according to a first embodiment of the present invention. FIG. 2 is an exploded view of the dust collecting section. FIG. FIG. 5 is a cross-sectional view of a main part of the dust collecting part. FIG. 6 is a cross-sectional view of a main part of another dust collecting part. FIG. 7 is a cross-sectional view of a main part of another dust collecting part. Side sectional view of conventional vacuum cleaner
6 First dust separating section 7 Second dust separating section 9 Inflow port (1st dust separating section)
10 Inflow port (second dust separation section)
13 High-density dust accumulation unit 14 Low-density dust accumulation unit 17 Opening / closing lid 22 Partition wall 25 Partition wall

Claims (4)

A first dust separation unit having an opening and an inflow port through which sucked dust flows, separating and collecting dust from suction air; and a first dust separation unit provided in the first dust separation unit. A second dust separating section for separating the dust after passing through the first dust separating section from the suction wind, and a second dust separating section that separates the dust after passing through the first dust separating section from the first dust separating section. A storage unit for storing the dust separated by the first dust separation unit; and an opening / closing lid for covering an opening of the first dust separation unit, wherein the storage unit includes a partition wall formed in the first dust separation unit. A vacuum cleaner formed from the partition wall formed on the opening / closing lid. The vacuum cleaner according to claim 1, wherein the partition wall formed on the opening / closing lid is formed closer to the opening / closing axis of the opening / closing lid than the partition wall of the first dust separating unit. 2. The vacuum cleaner according to claim 1, wherein the section of the partition wall formed on the opening / closing lid has a substantially L-shaped cross section. The vacuum cleaner according to claim 1, wherein an elastic body is provided between the partition walls.

Images