JP2004008550A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve user-friendliness in a vacuum cleaner in a manner that dust is centrifuged by air stream sucked from a suction gear, housed in a dust housing chamber and compressed to prevent an early decrease of a suction capacity through some amounts of dust suction and decrease a frequency with which the dust inside the dust housing chamber is disposed. <P>SOLUTION: The vacuum cleaner comprises a suction implement 6 for sucking the dust in communication with an vacuum cleaner body 1, a dust collecting case 18 for centrifuging the dust, and a valve control means 44 for enabling compressing the dust collected in the dust collecting case 18 by a user, and decreases the frequency of disposing of the dust inside the dust collecting case 18 to improve the user-friendliness. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a vacuum cleaner used in a general household.
[0002]
[Prior art]
A conventional vacuum cleaner having a cyclone dust collecting unit is, for example, a vacuum cleaner disclosed in JP-A-2000-342492 or a vacuum cleaner disclosed in JP-A-9-253011. The dust separated and separated by the cyclone dust collecting section was simply deposited under the dust collecting section under the influence of the swirling airflow in the cyclone dust collecting section.
[0003]
[Problems to be solved by the invention]
However, in such a vacuum cleaner, dust accumulated in the dust collection case has a structure that simply accumulates as described above. The ratio of bulk to mass increases. Dust with a large mass turns on the outer circumference side due to the centrifugal force received by the turning inside the cyclone dust collection part, and the change (decrease) in the intake air volume passing through the main filter located on the inner circumference part decreases, but with fibrous dust, Due to the small mass, the effect of centrifugal separation in the cyclone dust collecting section is insufficient, fibrous dust is adsorbed on the surface of the main filter section, and the suction air volume is likely to decrease. However, there is a problem that the suction performance is reduced.
[0004]
Furthermore, if a predetermined amount of dust is to be accumulated in the dust collecting case, it becomes necessary to mount a large-capacity dust collecting case, which has been against the recent trend of reducing the size and weight of the vacuum cleaner.
[0005]
The present invention solves the above-mentioned conventional problems, and compresses dust that is centrifugally separated by a flow of air sucked from a suction tool and is housed in a dust storage chamber, and suction performance is quickly reduced by suction of a small amount of dust. It is an object of the present invention to improve the usability by preventing the dust from being lowered and reducing the frequency of discarding dust in the dust storage chamber.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a cleaner body having a built-in electric blower that emits suction air, a suction tool that communicates with the cleaner body and sucks dust, and is provided on an intake upstream side of the electric blower. A dust collecting case for centrifugally separating dust, the dust collecting case is provided with a separation chamber for centrifugally separating dust, a first suction unit provided in the separation chamber and communicating with a suction side of the electric blower, A dust storage chamber that communicates with the separation chamber and stores dust; and a second suction unit provided in the dust storage chamber and that communicates with the dust storage chamber and the suction side of the electric blower. A valve for selectively selecting communication between the electric blower and communication between the second intake unit and the electric blower, and a motor for driving the valve, wherein a user controls a driving operation of the motor. It is provided with control means.
[0007]
Accordingly, dust that is centrifugally separated by the flow of air sucked from the suction tool and is stored in the dust storage chamber can be compressed, and suction of a small amount of dust does not cause a drop in suction performance at an early stage. The frequency of discarding the dust in the storage chamber can be reduced, and the user can compress the dust in the dust storage chamber as needed, thereby improving the usability.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
The invention according to claim 1 of the present invention is provided with a cleaner main body having a built-in electric blower for generating a suction wind, a suction device communicating with the cleaner main body to suck dust, and provided on an intake upstream side of the electric blower. A dust collecting case for centrifugally separating dust, the dust collecting case is provided with a separation chamber for centrifugally separating dust, a first suction unit provided in the separation chamber and communicating with a suction side of the electric blower, A dust storage chamber that communicates with the separation chamber and stores dust; and a second suction unit provided in the dust storage chamber and that communicates with the dust storage chamber and the suction side of the electric blower. A valve for selectively selecting communication between the electric blower and communication between the second intake unit and the electric blower, and a motor for driving the valve, wherein a user controls a driving operation of the motor. It is provided with control means.
[0009]
Accordingly, dust that is centrifugally separated by the flow of air sucked from the suction tool and is stored in the dust storage chamber can be compressed, and suction of a small amount of dust does not cause a drop in suction performance at an early stage. The frequency of discarding the dust in the storage chamber can be reduced, and the user can compress the dust in the dust storage chamber as needed, thereby improving the usability.
[0010]
According to the second aspect of the present invention, the electric motor is driven when the valve control means is being pressed, and it is easy to prevent the vacuum cleaner from malfunctioning due to the user's misuse.
[0011]
According to a third aspect of the present invention, there is provided a cleaner main body having a built-in electric blower for generating a suction wind, a suction device communicating with the cleaner main body for sucking dust, and a suction device provided upstream of the electric blower. A dust collecting case for centrifugally separating dust, the dust collecting case is provided with a separation chamber for centrifugally separating dust, a first suction unit provided in the separation chamber and communicating with a suction side of the electric blower, A dust storage chamber that communicates with the separation chamber and stores dust; and a second suction unit provided in the dust storage chamber and that communicates with the dust storage chamber and the suction side of the electric blower. A valve for selectively selecting communication between the electric blower and communication between the second intake unit and the electric blower, a motor for driving the valve, and a temperature detecting unit for detecting a temperature of the electric blower, Depending on the output of the temperature detecting means, Vacuum cleaner for controlling the operational behavior of the electric motor, it is possible to improve the usability because always can compress dust in the dust storage chamber prior to use.
[0012]
The invention according to claims 4 to 6 of the present invention is directed to a cleaner main body having a built-in electric blower for generating a suction wind, a suction device communicating with the cleaner main body to suck dust, and an intake air upstream side of the electric blower. A dust collecting case for centrifugally separating the dust, the dust collecting case is provided with a separation chamber for centrifugally separating the dust, and a first suction unit provided in the separation chamber and communicating with the suction side of the electric blower. A dust storage chamber that communicates with the separation chamber and stores dust, and a second suction unit provided in the dust storage chamber and that communicates with the dust storage chamber and the suction side of the electric blower; A valve for selectively selecting the communication between the unit and the electric blower, and the communication between the second intake unit and the electric blower, an electric motor for driving the valve, and a dust amount for detecting an amount of dust in the dust storage chamber. Detecting means for detecting the output of the dust amount detecting means. Flip, the vacuum cleaner for controlling the running operation of the motor, when dust in the dust storage chamber is large, it is possible to improve the usability because it compresses the dust in the dust storage chamber.
[0013]
According to a seventh aspect of the present invention, there is provided a cleaner main body having a built-in electric blower for generating a suction wind, a suction device communicating with the cleaner main body for sucking dust, and a suction device provided upstream of the electric blower. A dust collecting case for centrifugally separating dust, the dust collecting case is provided with a separation chamber for centrifugally separating dust, a first suction unit provided in the separation chamber and communicating with a suction side of the electric blower, A dust storage chamber that communicates with the separation chamber and stores dust; and a second suction unit provided in the dust storage chamber and that communicates with the dust storage chamber and the suction side of the electric blower. A valve for selectively selecting communication between the electric blower and communication between the second intake unit and the electric blower, an electric motor for driving the valve, and suction from any one of the suction tool to the dust collecting case. Dust detection that detects the amount of dust passing through the passage A vacuum cleaner that includes a step and controls the operation of the electric motor in accordance with the output of the dust detection means. When the amount of dust passing through the suction passage is large, the dust in the dust storage chamber can be compressed. Can be improved.
[0014]
The invention according to claims 8 to 9 of the present invention is directed to a cleaner main body having a built-in electric blower for generating a suction wind, a suction tool communicating with the cleaner main body for sucking dust, and an intake upstream side of the electric blower. A dust collecting case for centrifugally separating the dust, the dust collecting case is provided with a separation chamber for centrifugally separating the dust, and a first suction unit provided in the separation chamber and communicating with the suction side of the electric blower. A dust storage chamber that communicates with the separation chamber and stores dust, and a second suction unit provided in the dust storage chamber and that communicates with the dust storage chamber and the suction side of the electric blower; A valve for selectively selecting the communication between the unit and the electric blower, the communication between the second intake unit and the electric blower, an electric motor for driving the valve, and detection of leaving the suction tool from the surface to be cleaned. It is provided with an out-of-bed detecting means, and outputs the output of the out-of-bed detecting means. First, in the vacuum cleaner that controls the operation of the electric motor, the amount of suction air increases when rising from the surface to be cleaned of the suction tool, so that the effect of compressing the dust in the dust storage chamber can be improved and the usability can be improved. it can.
[0015]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0016]
(Example 1)
As shown in FIG. 3, the cleaner body 1 connects an extension pipe 5 via a handle 2 at hand and a hose 4 with a hose joint 3, and communicates with a suction tool 6 attached to the extension pipe 5 for sucking dust. are doing. Further, the cleaner body 1 includes one pivotally supported front wheel caster 7 and a pair of rear wheels 8.
[0017]
As shown in FIGS. 1 and 2, the main body 1 of the vacuum cleaner comprises an outer shell including a lower main body 9, an upper main body 10, and a main body cover 11. The electric blower 12 generates a suction wind, and supports the front with a first support rubber 13 and the rear with a first motor cover 15 and a second motor cover 16 with a second support rubber 14 therebetween. 9 and fixed by the middle main body 17.
[0018]
The dust collecting case 18 is composed of a case main body 19 and a lid 21 which is openably and closably locked to the case main body 19 by a shaft 20, and when the lid button 22 is pressed, the lid 21 and the case main body 19 are engaged. The lid is released and the lid 21 is opened from the case main body 19, and the dust collecting case 18 is detachably mounted on the intake upstream side of the electric blower 12, that is, the concave portion 23 formed in front of the lower main body 9. .
[0019]
The dust collection case 18 has a separation chamber 24 for centrifugally separating the dust. This separation chamber 24 is formed in a substantially hollow cylindrical shape, and is connected to the suction port 25 of the cleaner body 1 as shown in FIGS. It communicates through a second communication port 27 with a dust transfer chamber 26 that guides the intake air to the communication separation chamber 24, and communicates with a dust storage chamber 29 that accumulates dust through a first communication port 28 that transfers dust. ing.
[0020]
An intake filter (first intake section) 30 communicating with the intake side of the electric blower 12 is provided in the separation chamber 24, a second communication port 27 is formed near the intake filter 30, and a first communication port 28 is provided in the separation chamber 24. Is formed at a position diagonal to the second communication port 27. As shown in FIG. 6, a rectification guide portion 31 that directs the intake airflow toward the first communication port 28 while keeping the intake air flow along the inner wall of the separation chamber 24 is provided at a position facing the second communication port 27 of the dust transfer chamber 26. It is formed on the body 21. In addition, a rectifying wall 32 is formed around the first communication port 28 to prevent a backflow of the airflow from the dust storage chamber 29 to the separation chamber 24.
[0021]
In addition, the dust collecting case 18 has a compression filter (second suction unit) 33, and the compression filter 33 sucks the electric blower 12 through the dust storage chamber 29 and the pre-filter 34 as shown in FIG. Communicates with the side.
[0022]
The intake filter 30 and the electric blower 12 communicate with each other via a first intake passage 35 having a first opening 34, and the compression filter 33 and the electric blower 12 communicate with each other via a second intake passage 37 having a second opening 36.
[0023]
The valve 38 constitutes means for selectively opening the first opening 34 constituting the first intake passage 35 and the second opening 36 constituting the second intake passage 37, and is provided with a built-in reduction gear. The electric motor 40 attached to the case 39 is driven, and in a normal state, is positioned as shown by a dotted line in FIG. 7, closes the second opening 36 constituting the second intake passage 37, and forms the first intake passage 35. When the user operates (presses a switch), the motor 44 is driven, and the valve 38 is positioned as shown by a dashed line in FIG. The first opening 34 forming the passage 35 is closed.
[0024]
In FIGS. 1 and 2, reference numeral 41 denotes a control printed circuit board, which is control means including an electric blower and a motor drive circuit; 42, a board mounting case for accommodating the control printed circuit board 41; and 43, a handle. is there.
[0025]
The operation of the above configuration will be described. When the hose joint 3 of the hose 4 is connected to the suction port 25 of the cleaner body 1 and the suction tool 6 is connected to the hose 4 via the extension pipe 5 and the operation is started, the electric blower 12 starts operating.
[0026]
As described above, when the electric blower 12 is operated in a state where the first opening 34 forming the first intake passage 35 is closed and the second opening 36 forming the second intake passage 37 is opened, the air has flowed in from the inlet 25. The intake airflow passes through the dust transfer chamber 26, enters the separation chamber 24 through the second communication port 27, passes through the dust storage chamber 29 through the first communication port 28, passes through the pre-filter 34, the compression filter 33, The electric blower 12 sucks the air through the second intake passage 37 having the second opening 36.
[0027]
The dust contained in the dust containing chamber 29 can be compressed by the flow of air, and particularly, the fibrous dust can be significantly compressed, and the suction performance of the small amount of dust is reduced at an early stage. Therefore, the frequency of discarding the dust in the dust storage chamber 29 can be reduced, and the usability can be improved.
[0028]
The electric motor 40 rotates in the reverse direction to drive the valve 38 in the reverse direction to open the first opening 34 forming the first intake passage 35 and close the second opening 36 forming the second intake passage 37.
[0029]
In this state, the electric blower 12 is operated with the input set by the user. As shown by arrows in FIGS. 4 and 5, the intake airflow containing dust sucked from the suction tool 6 flows in from the intake port 25, passes through the dust transfer chamber 26, and passes through the second communication port 27 to the separation chamber 24. to go into.
[0030]
At this time, the first communication port 28 is formed at a position diagonal to the second communication port 27 of the separation chamber 24, and the intake airflow is directed to the inner wall of the separation chamber 24 at a position facing the second communication port 27 of the dust transfer chamber 26. Since the rectifying guide portion 31 is formed so as to be directed along the first communication port 28 while flowing along, the intake airflow including dust flowing into the separation chamber 24 from the second communication port 27 flows along the inner wall of the separation chamber 24. , A swirling airflow toward the first communication port 28 can be formed.
[0031]
Due to this swirling airflow, a centrifugal force acts on the dust contained in the intake airflow, so that the dust can be centrifugally separated. The clean air is drawn into the electric blower 12 from the first intake passage 35 having the first opening 34 through the intake filter 30. At this time, the effect of centrifugal separation of the fibrous dust can be enhanced, and the fibrous dust can be prevented from adsorbing to the surface of the intake filter 30, so that the suction performance can be prevented from being lowered early. , The usability can be improved.
[0032]
In addition, since the user drives the valve 38 in the normal direction by the electric motor 40 to close the first intake passage 35 for a predetermined time and open the second intake passage 37, the dust accommodating chamber was cleaned last time. The dust contained in the dust container 29 can be compressed, the suction performance does not deteriorate early due to the suction of a small amount of dust, and the dust in the dust container 29 does not need to be discarded during cleaning. Can be improved.
[0033]
Further, in a state where the first intake passage 35 is closed, the electric blower 12 is configured to operate with the maximum input for a predetermined time, so that the amount of air sucked from the suction tool 6 when the electric blower 12 is operated is maximized. The dust contained in the dust containing chamber 29 can be significantly compressed by the flow of air.
[0034]
The opening and closing of the first opening 34 by the valve 38 is closed by rotation in a predetermined direction and opened by rotation in the opposite direction, so that the first opening 34 can be reliably opened and closed by the valve 38. Therefore, the moving space of the valve 38 can be reduced, and the miniaturization of the cleaner body 1 is not hindered.
[0035]
(Example 2)
A second embodiment of the present invention will be described with reference to FIG. The same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. Other configurations are the same as those in the first embodiment, and a description thereof will be omitted.
[0036]
A voltage detecting means 46 for detecting the power supply voltage of the control means 41, a rotation speed control means 45 for controlling the rotation speed of the electric blower 12, and a drive section 49 for driving the electric blower 12 are provided.
[0037]
The operation of the above configuration is as follows.
[0038]
When the electric blower 12 is started only once after the power is turned on, the electric motor 40 is driven to close the second opening 36 constituting the second intake passage 37, and the first intake passage is closed. The first opening 34 constituting the first intake passage 35 is opened. When the user operates the first opening 34, the electric motor 40 is driven, and the valve 38 is positioned as shown by a dashed line in FIG. When the first intake passage 35 is closed and the first intake passage 35 is closed, the electric blower 12 is operated with the maximum input for a predetermined time, so that the electric blower 12 is operated. The amount of air sucked from the suction tool 6 at this time can be maximized, and the dust contained in the dust containing chamber 29 can be significantly compressed by the flow of the air.
[0039]
(Example 3)
Hereinafter, a third embodiment of the present invention will be described with reference to FIG. The same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. Other configurations are the same as those in the first embodiment, and a description thereof will be omitted.
[0040]
A temperature detecting means 47 for detecting the temperature of the electric blower 12 is provided.
[0041]
The operation of the above configuration is as follows.
[0042]
The start of the electric blower 12 can be detected by the output of the temperature detecting means 47, and when the electric blower 12 is started, the electric motor 40 is driven and the second opening 36 forming the second intake passage 37 is connected. The first opening 34 constituting the first intake passage 35 is closed, and the first opening 34 is opened. When the user operates the electric motor 40, the electric motor 40 is driven, and the valve 38 is moved to the position shown by the dashed line in FIG. Then, the first opening 34 constituting the first intake passage 35 is configured to be closed, and in a state where the first intake passage 35 is closed, the electric blower 12 is configured to operate with the maximum input for a predetermined time. Therefore, the amount of air sucked from the suction tool 6 when the electric blower 12 is operated can be maximized, and the dust contained in the dust containing chamber 29 can be significantly compressed by the flow of the air.
[0043]
(Example 4)
Hereinafter, a fourth embodiment of the present invention will be described with reference to FIG. The same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.
[0044]
Dust amount detection means 48 for detecting the amount of dust in the dust storage chamber 29 is provided. Other configurations are the same as those in the first embodiment, and a description thereof will be omitted.
[0045]
The operation of the above configuration is as follows.
[0046]
When the amount of dust in the dust storage chamber 29 increases, the electric motor 40 is driven to close the second opening 36 constituting the second intake passage 37 and open the first opening 34 constituting the first intake passage 35. When the user operates, the motor 44 drives the electric motor 40 to position the valve 38 as shown by the one-dot chain line in FIG. 7 so as to close the first opening 34 constituting the first intake passage 35. When the first air intake passage 35 is closed, the electric blower 12 is operated with the maximum input for a predetermined time. Therefore, the amount of air sucked from the suction tool 6 when the electric blower 12 is operated. Can be maximized, and the dust contained in the dust containing chamber 29 can be significantly compressed by the flow of the air. Specifically, a current sensor or a pressure sensor is used as the dust detection means 48.
[0047]
(Example 5)
Hereinafter, a fifth embodiment of the present invention will be described with reference to FIG. The same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. Other configurations are the same as those in the first embodiment, and a description thereof will be omitted.
[0048]
A dust detection unit 50 that detects the amount of dust passing through the suction passage (using an infrared sensor) and converts the dust into an electric signal is disposed in any of the hose 4, the extension pipe 5, and the suction tool 6.
[0049]
The operation of the above configuration is as follows.
[0050]
When the amount of dust passing through any of the suction passages of the hose 4, the extension pipe 5, and the suction tool 6 is large, the electric motor 40 is driven to close the second opening 36 constituting the second intake passage 37, The first opening 34 constituting one intake passage 35 is opened, and when operated by the user, the 44 drives the electric motor 40 so that the valve 38 is positioned as shown by a dashed line in FIG. The first opening 34 constituting the intake passage 35 is configured to be closed, and when the first intake passage 35 is closed, the electric blower 12 is configured to operate with the maximum input for a predetermined time. The amount of air sucked from the suction tool 6 when the device 12 is operated can be maximized, and the dust contained in the dust containing chamber 29 can be significantly compressed by the flow of the air.
[0051]
(Example 6)
Hereinafter, a sixth embodiment of the present invention will be described with reference to FIG. The same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. Other configurations are the same as those in the first embodiment, and a description thereof will be omitted.
[0052]
An out-of-bed detecting means 51 for detecting the out-of-bed of the suction tool 6 is provided.
[0053]
The operation of the above configuration is as follows.
[0054]
When the suction tool 6 rises from the surface to be cleaned, the electric motor 40 is driven to close the second opening 36 forming the second intake passage 37 and open the first opening 34 forming the first intake passage 35. When operated by the user, the motor 44 drives the electric motor 40 to position the valve 38 as shown by the one-dot chain line in FIG. 7 and close the first opening 34 forming the first intake passage 35. With this configuration, when the first intake passage 35 is closed, the electric blower 12 is operated with the maximum input for a predetermined time, so that the electric blower 12 is sucked from the suction tool 6 when the electric blower 12 is operated. The air volume can be maximized, and the air flow can significantly compress the dust stored in the dust storage chamber 29. Further, even if the air flow detecting means is provided in any one of the suction passages of the cleaner body 1, the hose 4, the extension pipe 5, and the suction tool 6, the dust can be significantly compressed when the suction amount increases. The same effect can be obtained.
[0055]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the centrifugal separation is carried out by the flow of the air sucked from a suction tool, and the dust accommodated in a dust accommodating chamber is compressed, and a suction of a small amount of dust does not reduce suction performance early. In addition, it is possible to provide a vacuum cleaner having improved usability by reducing the frequency of discarding dust in the dust storage chamber.
[Brief description of the drawings]
1 is an exploded perspective view of the main body of the vacuum cleaner of the first embodiment of the present invention; FIG. 2 is a cross-sectional view of the main body of the vacuum cleaner of FIG. 3; FIG. 4 is an enlarged perspective view of the dust collection case of the vacuum cleaner with a cover opened, with a part cut away. FIG. 5 is an enlarged cross-sectional view of the dust collection case of the vacuum cleaner. FIG. FIG. 7 is an enlarged cross-sectional view of the dust collecting case of the vacuum cleaner taken along line XX. FIG. 7 is a cross-sectional view of the vacuum cleaner with the dust collecting case removed. FIG. 8 is a block diagram of the vacuum cleaner. FIG. 10 is a block diagram of a vacuum cleaner showing a second embodiment. FIG. 10 is a block diagram of a vacuum cleaner showing a third embodiment of the present invention. FIG. 11 is a vacuum cleaner showing a fourth embodiment of the present invention. FIG. 12 is a block diagram of a vacuum cleaner showing a fifth embodiment of the present invention. FIG. 13 is a block diagram of a vacuum cleaner showing a sixth embodiment of the present invention. Click view DESCRIPTION OF SYMBOLS
DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 6 Suction implement 12 Electric blower 18 Dust collection case 24 Separation chamber 29 Dust storage chamber 30 Intake filter (first intake part)
33 Compression filter (second intake unit)
35 First intake passage 37 Second intake passage 38 Valve (means for selectively opening the first intake passage and the second intake passage)
44 Valve control means

Claims (9)

A vacuum cleaner body having a built-in electric blower for generating a suction wind, a suction tool communicating with the cleaner body to suck dust, and a dust collecting case provided on an intake upstream side of the electric blower and centrifugally separating dust are provided. The dust collecting case includes a separation chamber for centrifugally separating the dust, a first suction unit provided in the separation chamber and communicating with the suction side of the electric blower, and a dust communicating with the separation chamber and containing the dust. A storage chamber, and a second suction section provided in the dust storage chamber and communicating with the dust storage chamber and the suction side of the electric blower, wherein communication between the first suction section and the electric blower and the second suction section are provided. And a valve for selectively selecting communication between the electric blower and the electric blower, and a motor for driving the valve, and a valve control means for controlling a driving operation of the electric motor by a user. The electric vacuum cleaner according to claim 1, wherein the electric motor is driven when the valve control means is pressed. A vacuum cleaner body having a built-in electric blower for generating a suction wind, a suction tool communicating with the cleaner body to suck dust, and a dust collecting case provided on an intake upstream side of the electric blower and centrifugally separating dust are provided. The dust collecting case includes a separation chamber for centrifugally separating the dust, a first suction unit provided in the separation chamber and communicating with the suction side of the electric blower, and a dust communicating with the separation chamber and containing the dust. A storage chamber, and a second suction section provided in the dust storage chamber and communicating with the dust storage chamber and the suction side of the electric blower, wherein communication between the first suction section and the electric blower and the second suction section are provided. And a valve for selectively selecting the communication of the electric blower, an electric motor for driving the valve, and a temperature detecting means for detecting a temperature of the electric blower, and according to an output of the temperature detecting means, An electric motor that controls the operation of the motor Vacuum cleaner. A vacuum cleaner body having a built-in electric blower for generating a suction wind, a suction tool communicating with the cleaner body to suck dust, and a dust collecting case provided on an intake upstream side of the electric blower and centrifugally separating dust are provided. The dust collecting case includes a separation chamber for centrifugally separating the dust, a first suction unit provided in the separation chamber and communicating with the suction side of the electric blower, and a dust for communicating with the separation chamber and containing the dust. A storage chamber, and a second suction section provided in the dust storage chamber and communicating with the dust storage chamber and the suction side of the electric blower, wherein communication between the first suction section and the electric blower and the second suction section are provided. And a valve for selectively selecting the communication between the electric blower and the electric blower, an electric motor for driving the valve, and a dust amount detecting means for detecting the amount of dust in the dust storage chamber. Controls the operation of the motor Vacuum cleaner that. The vacuum cleaner according to claim 4, wherein a current sensor is used as the dust detection means. The vacuum cleaner according to claim 4, wherein a pressure sensor is used as the dust detection means. A vacuum cleaner body having a built-in electric blower for generating a suction wind, a suction tool communicating with the cleaner body to suck dust, and a dust collecting case provided on an intake upstream side of the electric blower and centrifugally separating dust are provided. The dust collecting case includes a separation chamber for centrifugally separating the dust, a first suction unit provided in the separation chamber and communicating with the suction side of the electric blower, and a dust communicating with the separation chamber and containing the dust. A storage chamber, and a second suction section provided in the dust storage chamber and communicating with the dust storage chamber and the suction side of the electric blower, wherein communication between the first suction section and the electric blower and the second suction section are provided. And a valve for selectively selecting the communication between the electric blower and the electric blower; an electric motor for driving the valve; and a dust detection for detecting an amount of dust passing through a suction passage from any one of the suction tool to the dust collection case. Means, the dust detection means In response to a force, vacuum cleaner for controlling the running operation of the motor. A vacuum cleaner body having a built-in electric blower for generating a suction wind, a suction tool communicating with the cleaner body to suck dust, and a dust collecting case provided on an intake upstream side of the electric blower and centrifugally separating dust are provided. The dust collecting case includes a separation chamber for centrifugally separating the dust, a first suction unit provided in the separation chamber and communicating with the suction side of the electric blower, and a dust for communicating with the separation chamber and containing the dust. A storage chamber, and a second suction section provided in the dust storage chamber and communicating with the dust storage chamber and the suction side of the electric blower, wherein communication between the first suction section and the electric blower and the second suction section are provided. And a valve for selectively selecting the communication between the electric blower and the electric blower, an electric motor for driving the valve, and an exit detection unit for detecting exit from the surface to be cleaned of the suction tool. Controls the operation of the motor Vacuum cleaner that. The vacuum cleaner according to any one of claims 1 to 8, further comprising an air volume detection unit configured to detect an air volume of the suction passage at any position from the suction tool to the dust collection case.

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