JP2011110380A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner which starts operating with little noise. <P>SOLUTION: This vacuum cleaner 1 includes: a cleaner body 2; a suction head 26 with a suction port 28 connected to the cleaner body 2; an electric blower 8 which is housed in the cleaner body 2 and makes the suction port 28 generate negative pressure; a rotary cleaner 29 installed in the suction port 28 and axially supported by the suction head 26; an electric motor which drives the rotary cleaner 29 to rotate; a target surface information detector 33 which detects different kinds of target surfaces where the cleaner head 26 may lie and selects their suitable modes; an operation unit 24 which receives a start operation for the electric blower 8; a body control unit 9 which activates the electric blower 8 by gradually increasing the input level for the electric blower 8 to a prescribed input value after the operation unit 24 receives the start operation; and a suction head control unit 42 which activates the electric motor 31 simultaneously with or later than the start of the electric blower 8 depending on the detected result or the selected result by the target surface information detector 33. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner provided with a suction port body provided with a rotary cleaning body driven by an electric motor.

  In recent years, the suction power of an electric blower tends to increase due to market demand. Accordingly, the vacuum cleaner has a problem that the rush current increases when the electric blower is started. Therefore, when the electric blower is started, an electric vacuum cleaner is known in which the input of the electric blower is gradually increased (gradual increase) to reach a user's desired operation output (so-called slow start). (For example, refer to Patent Document 1).

Japanese Patent Laid-Open No. 03-254722

  2. Description of the Related Art Conventionally, a vacuum cleaner including a suction port body provided with a rotary cleaning body is known.

  A rotary cleaning body is arrange | positioned at the suction inlet formed in the suction inlet body. Further, the rotary cleaning body includes a long shaft portion and a bristle brush or blade provided spirally on the side surface of the shaft portion. The rotating shaft of the rotary cleaning body is disposed so as to intersect the traveling direction of the suction port body.

  The rotary cleaning body is driven using a turbine or an electric motor provided in the suction port body as a drive source. When the suction port body travels on the surface to be cleaned, the rotary cleaning body continuously hits a brush and a blade against the surface to be cleaned by the rotation, and scrapes dust existing on the surface to be cleaned. At this time, the bristle brush or blade struck against the surface to be cleaned generates noise.

  By the way, the vacuum cleaner that slowly starts the electric blower gradually increases the noise accompanying the operation of the electric blower when the electric blower is started. At this time, if the rotary cleaning body is rotating, the noise level generated by the rotary cleaning body is higher than the noise generated by the electric blower, and the noise level at the start of the entire vacuum cleaner is increased. There was a problem that became larger.

  Therefore, the present invention proposes a vacuum cleaner that generates less noise when starting.

  In order to solve the above problems, a vacuum cleaner according to the present invention includes a vacuum cleaner main body, a suction port body having a suction port communicated with the vacuum cleaner main body, and a vacuum housed in the suction port. An electric blower that generates a negative pressure, a rotary cleaning body that is pivotally supported by the suction port body and disposed at the suction port, an electric motor that rotationally drives the rotary cleaning body, and a cleaning target in which the suction port body is disposed Surface to be cleaned that can detect or select the type of surface, an operation unit that receives an operation start operation of the electric blower, and a target that is set in advance when the operation unit receives the operation start operation. The electric blower is gradually increased to an input value to start the electric blower, and the electric motor is started almost simultaneously with or delayed from the start of the electric blower based on the detection result or selection result of the surface to be cleaned information section. Characterized by comprising a control unit.

  The present invention can propose a vacuum cleaner with low noise generated at the time of starting.

The perspective view which showed the external appearance of the vacuum cleaner which concerns on this invention. Sectional drawing which showed the suction inlet of the vacuum cleaner which concerns on this invention. The block diagram of the vacuum cleaner which concerns on this invention. The timing chart of the operation control of the vacuum cleaner concerning the present invention. The timing chart of the operation control of the vacuum cleaner concerning the present invention. The timing chart of the operation control of the vacuum cleaner concerning the present invention. The timing chart of the operation control of the vacuum cleaner concerning the present invention. The figure which compared the noise which generate | occur | produces at the time of starting with the vacuum cleaner which concerns on this invention, and the conventional vacuum cleaner.

  An embodiment of a vacuum cleaner according to the present invention will be described with reference to FIGS.

  FIG. 1 is a perspective view showing an appearance of a vacuum cleaner according to the present invention.

  As shown in FIG. 1, the vacuum cleaner 1 is a so-called canister-type vacuum cleaner. The vacuum cleaner 1 includes a cleaner body 2 disposed on a surface to be cleaned, and a pipe portion 3 detachably connected to the cleaner body 2.

  The vacuum cleaner main body 2 includes a main body case 5, a pair of wheels 6 that are pivotally supported on both sides of the main body case 5, a dust separation and dust collection portion 7 housed in the main body case 5, and a dust separation and dust collection portion 7. The electric blower 8 communicated, a main body control unit 9 that controls driving of the electric blower 8, and a power cord 11 that guides electric power to the electric blower 8 are provided.

  The main body case 5 has a main body connection port 12 communicated with the dust separating and collecting part 7.

  The dust separating and collecting unit 7 separates and collects dust from air (dust-containing air) containing dust sucked into the vacuum cleaner 1 by the negative pressure generated by the electric blower 8.

  The wheel 6 is a large-diameter traveling wheel for traveling of the cleaner body 2.

  The main body control unit 9 has a plurality of preset operation modes. The main body control unit 9 drives the electric blower 8 by selectively selecting an arbitrary operation mode from a plurality of operation modes in response to an operation signal input from the pipe unit 3. Each operation mode is set by making the input value of the electric blower 8 different from each other while being associated with the operation signal input from the pipe section 3.

  The power cord 11 includes a power plug 14 at the free end.

  The pipe portion 3 sucks dust-containing air from the surface to be cleaned and guides it to the cleaner body 2 by the negative pressure acting from the cleaner body 2 as the electric blower 8 is operated. The pipe section 3 includes a connection pipe 19 that is detachably connected to the main body connection port 12 of the vacuum cleaner body 2, a dust collection hose 21 that is in communication with the connection pipe 19, and a hand control pipe that is in communication with the dust collection hose 21. 22, a gripping portion 23 provided protruding from the hand operation tube 22, an operation portion 24 provided on the gripping portion 23, an extension tube 25 detachably connected to the hand operation tube 22, and an extension A suction port body 26 that is detachably connected to and communicated with the pipe 25.

  The dust collecting hose 21 is formed in an elongated substantially cylindrical shape having flexibility. One end of the dust collection hose 21 is connected to the connection pipe 19. The dust collecting hose 21 communicates with the inside of the cleaner body 2 through the connection pipe 19.

  One end of the hand operation tube 22 is provided at the other end of the dust collecting hose 21. The hand operating tube 22 is communicated with the inside of the cleaner body 2 via the connecting tube 19 and the dust collecting hose 21.

  The grip part 23 is operated by the user of the vacuum cleaner 1 to operate the vacuum cleaner 1. The grip portion 23 is provided so as to protrude from the other end portion of the hand operation tube 22, and is bent toward the one end portion of the hand operation tube 22.

  The operation unit 24 includes a switch corresponding to each operation mode. Specifically, the operation unit 24 includes a stop switch 24 a that receives an operation stop operation of the electric blower 8 and an activation switch 24 b that receives an operation start operation of the electric blower 8. The start switch 24b may include a weak operation switch (not shown), a medium operation switch (not shown), and a strong operation switch (not shown). The user of the vacuum cleaner 1 can alternatively select the operation mode of the electric blower 8 by operating the operation unit 24.

  The extension tube 25 is formed in an elongated and substantially cylindrical shape that can be expanded and contracted. The extension tube 25 has a telescopic structure by overlapping a plurality of cylindrical bodies. One end of the extension tube 25 is detachably connected to the other end of the hand operation tube 22. The extension pipe 25 communicates with the inside of the cleaner body 2 through the connection pipe 19, the hand operation pipe 22 and the dust collection hose 21.

  The suction port body 26 is detachably connected to one end of the extension pipe 25. In addition, the suction port body 26 is configured to be able to travel on a surface to be cleaned such as a wooden floor or a carpet, and has a suction port 28 on the bottom surface facing the surface to be cleaned in the traveling state. Further, the suction port body 26 includes a rotary cleaning body 29 that is pivotally supported by the suction port body 26 and disposed at the suction port 28, and an electric motor 31 that drives the rotary cleaning body 29 to rotate. The suction port body 26 is communicated with the inside of the cleaner body 2 through the extension pipe 25, the hand operation pipe 22 and the dust collection hose 21.

  When the start switch 24 b is operated, the electric vacuum cleaner 1 drives the electric blower 8 to apply a negative pressure (suction negative pressure) to the inside of the cleaner main body 2. This negative pressure acts on the suction port 28 of the suction port body 26 from the main body connection port 12 through the dust collecting hose 21, the hand operating tube 22 and the extension tube 25. Due to the negative pressure acting on the suction port 28, the vacuum cleaner 1 sucks dust collected on the surface to be cleaned together with air from the suction port 28 to clean the surface to be cleaned. The dust-containing air sucked into the suction port 28 is separated into air and dust by the dust separating and collecting unit 7 accommodated in the cleaner body 2. The separated dust is collected by the dust separation and collection unit 7. On the other hand, the separated air passes through the dust separating and collecting part 7 and is sucked into the electric blower 8 and exhausted from the cleaner body 2.

  FIG. 2 is a cross-sectional view showing a suction port body of the electric vacuum cleaner according to the present invention.

  As shown in FIG. 2, the suction port body 26 of the vacuum cleaner 1 includes a rotary cleaning body 29 disposed in the suction port 28 and a cleaned surface information detection unit 33 (cleaned surface information unit) provided on the bottom surface. And comprising.

  The rotary cleaning body 29 includes a shaft portion 35 that is pivotally supported by the suction port body 26, and a bristle brush 36 and a blade 37 that are spirally provided on the side surface of the shaft portion 35. The blade 37 is formed of an elastic body such as rubber or silicon or a non-woven fabric, and can scrape dust on the surface to be cleaned F without damaging the surface to be cleaned F as the rotary cleaning body 29 rotates.

  However, when the surface to be cleaned F is a hard floor F1 such as a wooden floor or a plastic plate, the rotary cleaning body 29 causes the bristle brush 36 and / or the blade 37 or at least one of them to continuously collide with the hard floor F1 along with the rotation. Noise. When the surface to be cleaned F is a soft floor F2 such as a carpet, the noise accompanying the rotation of the rotary cleaning body 29 is extremely small compared to the case of the hard floor F1.

  The cleaning surface information detection unit 33 includes a wheel 38 that is grounded to the surface F to be cleaned, an axle 39 that suspends the wheel 38 on the bottom surface of the suction port body 26, and a distance between the wheel 38 and the bottom surface of the suction port body 26. And a switch (not shown) that is opened and closed by. In the cleaning surface information detection unit 33, the detection result of the cleaning surface information output from the switch differs depending on whether the cleaning surface F is the hard floor F1 or the soft floor F2.

  In addition, the vacuum cleaner 1 is provided with a switch (not shown, to-be-cleaned surface information unit) that can alternatively specify a hard floor and a soft floor in the operation unit 24 or the suction port body 26, and the to-be-cleaned surface information detecting unit Instead of 33, the type of the surface to be cleaned may be specified. In this case, the cleaning surface information is a switch selection result.

  FIG. 3 is a block diagram of a vacuum cleaner according to the present invention.

  As shown in FIG. 3, the vacuum cleaner 1 includes a main body control circuit 42 and a suction port body control circuit 43 connected to the main body control circuit 42. The vacuum cleaner 1 operates the electric blower 8 according to the operation input input to the operation unit 24 and sucks dust together with air from the suction port body 26. Further, the vacuum cleaner 1 operates the electric motor 31 of the suction port body 26 together with the electric blower 8, and drives the rotary cleaning body 29 to rotate to scrape dust adhering to the surface F to be cleaned.

  The main body control circuit 42 includes a first switching element 45 connected in series to the commercial AC power supply E together with the electric blower 8, and a second switching element 46 connected in series to the commercial AC power supply E together with the suction port body control circuit 43. The main body power supply unit 47 connected to the commercial power source E, the operation unit 24 that changes the divided voltage value of the output voltage of the main body power supply unit 47, and the main body that performs switching control of the first switching element 45 and the second switching element 46 And a control unit 9 (control unit).

  The first switching element 45 changes the input of the electric blower 8 according to the control of the main body control unit 9.

  The second switching element 46 changes the input of the suction port control circuit 43 according to the control of the main body control unit 9.

  The first switching element 45 and the second switching element 46 are configured using elements such as a bidirectional thyristor and a reverse blocking three-terminal thyristor for power control, and each gate terminal is connected to the main body control unit 9.

  The operation unit 24 includes a voltage variable circuit (not shown) that changes the divided voltage value of the output voltage of the main body power supply unit 47 corresponding to each of the stop switch 24a and the start switch 24b. The divided voltage value of the output voltage of the main body power supply unit 47 changed by the operation unit 24 is an operation signal input to the main body control unit 9.

  The main body control unit 9 includes a microcomputer, and includes a central processing unit (not shown), a memory (not shown), an I / O unit (not shown), and a timer (not shown). The memory stores in advance data such as a control program executed by the central processing unit and constants necessary for execution of the control program. This data includes constants corresponding to preset operation modes. The memory is used as a data storage area and a work area for temporarily storing calculation data of the central processing unit.

  The main body control unit 9 periodically reads the operation signal input from the operation unit 24 and the zero cross timing of the commercial AC power source E detected by a zero cross detector (not shown), and selects the selected operation mode. Accordingly, the switching control (phase control) of the first switching element 45 and the second switching element 46 is performed to control the input of the electric blower 8 and the suction port control circuit 43.

  The main body control unit 9 has, for example, three operation modes consisting of weak, medium and strong. Each operation mode has an input value of the electric blower 8 set in advance in a relationship of weak mode <medium mode <strong mode. The main body control unit 9 changes the input of the electric blower 8 by switching the operation mode and switching the first switching element 45 each time the start switch 24b receives the operation start operation. Then, when the start switch 24b receives the operation start operation, the main body control unit 9 performs switching control of the second switching element 46 and starts supplying power to the suction port body control circuit 43.

  The suction port body control circuit 43 includes a power source detection unit 48 that detects a voltage supplied from the main body control circuit 42, a suction port body power source unit 51 that converts AC power supplied from the main body control circuit 42 into DC power, A switching circuit 52 that is connected to the suction port power source 51 and changes the input of the electric motor 31, and a cleaned surface information detection unit 33 (cleaned surface information unit) that detects the type of the cleaned surface on which the suction port 26 is disposed. ), A notification unit 53 that notifies the operating status of the electric motor 31, and a suction port body control unit 54 (control unit) that performs switching control of the switching circuit 52.

  The power detection unit 48 detects the waveform information of the voltage supplied from the main body control circuit 42 and outputs it to the suction port control unit 54.

  The switching circuit 52 is a bridge circuit having a plurality of switching elements (not shown). The switching circuit 52 changes the input and rotation direction of the electric motor 31 according to the control of the suction port control unit 54.

  The cleaning surface information detection unit 33 detects the type of cleaning surface (hard floor or soft floor) and outputs the detection result to the suction port control unit 54 as cleaning surface information.

  The notification unit 53 displays the operation status of the electric motor 31 based on the notification signal input from the suction port control unit 54. Specifically, the notification unit 53 clarifies that the rotary cleaning body 29 is rotating (or not rotating) as visual information or sound information using an LED or a speaker.

  Similarly to the main body control unit 9, the suction port body control unit 54 is formed of a microcomputer, and includes a central processing unit (not shown), a memory (not shown), an I / O unit (not shown), and a timer (not shown). . The memory stores in advance data such as a control program executed by the central processing unit and constants necessary for execution of the control program. The memory is used as a data storage area and a work area for temporarily storing calculation data of the central processing unit.

  The suction port control unit 54 reads the waveform information of the voltage input from the power supply detection unit 48 and controls the switching circuit 52 to control the input and rotation direction of the electric motor 31.

  Further, the suction port body control unit 54 is energized from the suction port body power supply unit 51 when the main body control circuit 42 is connected to the commercial AC power source E and the switching control of the second switching element 46 by the main body control unit 9 is started. Can be operated.

  At this time, the suction port control unit 54 reads the cleaned surface information as the detection result of the cleaned surface information detection unit 33, and immediately starts or delays the start of the electric motor 31. Specifically, when the cleaning surface information read from the cleaning surface information detection unit 33 is a soft floor, the suction port body control unit 54 is substantially the same as the electric power supplied to the suction port power supply unit 51. 31 is started. On the other hand, when the cleaning surface information read from the cleaning surface information detection unit 33 is a hard floor, the suction port body control unit 54 sets an appropriate delay time T after power is supplied to the suction port power supply unit 51. After the lapse of time, the electric motor 31 is started.

  Further, the suction port control unit 54 notifies the notification unit 53 that the electric motor 31 is being driven substantially simultaneously with the supply of power. Therefore, when the cleaning surface information read from the cleaning surface information detection unit 33 is a hard floor, the suction port body control unit 54 performs the notification process in advance despite the start delay processing of the electric motor 31. Become.

  That is, when the operation unit 24 receives the operation start operation, the electric vacuum cleaner 1 gradually increases the input of the electric blower 8 to the preset target input value by switching control by the main body control unit 9 to make the electric blower 8 At the same time as starting, power supply to the suction port body control circuit 43 is started, and the switching control by the suction port body control unit 54 is performed substantially simultaneously with or delayed from the start of the electric blower 8 based on the detection result of the surface to be cleaned information detection unit 33. The electric motor 31 is started.

  And the vacuum cleaner 1 starts the alert | report that the rotary cleaning body 29 is rotating by the alerting | reporting part 53 regardless of the drive or non-drive of the electric motor 31 substantially simultaneously with the start of the electric blower 8.

  4 to 7 are timing charts of operation control of the electric vacuum cleaner according to the present invention.

  4 is a timing chart when the electric blower is started in the strong mode, FIG. 5 is a timing chart when the electric blower is started in the medium mode, and FIG. 6 is a timing chart when the electric blower is in the weak mode. FIG. 7 is a timing chart when the electric blower is started, and FIG. 7 is a timing chart of another example when the electric blower is started in the strong mode.

  4 to 7, the time T0 is the time until the control of the main body control circuit 42 and the suction port control circuit 43 is started after the operation unit 24 is operated by the user of the vacuum cleaner 1. It is a time for performing initial setting of the main body control unit 9 and the suction port body control unit 54. 4 to 7, the time T1 is a time until the input value of the electric blower 8 reaches a preset target input value in the strong mode operation. Further, in FIGS. 4 to 7, time T2 is a time until the input value of the electric blower 8 reaches a preset target input value in the medium mode operation. Furthermore, in FIG. 4 to FIG. 7, time T3 is the time until the input value of the electric blower 8 reaches a preset target input value in the weak mode operation.

  4 and 5, a time T4 is a delay time until the electric motor 31 is started in the strong mode operation and the medium operation mode. Furthermore, in FIG. 6, time T5 is a delay time until the electric motor 31 is started in the weak mode operation.

  Furthermore, in FIG. 7, time T6 is the time until the input value of the electric motor 31 reaches the preset target input value in the strong mode operation.

  Time T1, time T2, and time T3 are set to about 0.45 sec to about 1.5 sec, about 0.3 sec to about 1 sec, and about 0.15 sec to about 0.5 sec, respectively. That is, time T1, time T2, and time T3 are set so that a large rush current does not flow when the electric blower 8 is started. The electric blower 8 is slowly started over time T1, time T2, and time T3.

  Time T4 and time T5 are set to about 0.3 sec to about 1.0 sec. That is, the time T6 is within the time (T0 + T1), the time (T0 + T2) or the time (T0 + T3) related to the slow start of the electric blower 8, and the noise due to the drive of the electric blower 8 is less than the noise due to the rotation of the rotary cleaning body 29. It is desirable to set the time to increase. Also, the time T4 and the time T5 are set within a range in which the illusion such as a failure does not occur because the period from when the user of the vacuum cleaner 1 operates the operation unit 24 until the rotary cleaning body 29 starts is too long. Is done.

  As shown in FIG. 4, when the user of the vacuum cleaner 1 operates the strong operation switch, the vacuum cleaner 1 starts the operation of the electric blower 8 after the time T0, and the target set in advance after the time (T0 + T1). The electric blower 8 is soft-started by gradually increasing the input value of the electric blower 8 so as to reach the input value. Moreover, the electric vacuum cleaner 1 starts the electric motor 31 after time T0, when the kind of to-be-cleaned surface is a soft floor from the detection result of the to-be-cleaned surface information detection part 33 (dashed line A in FIG. 4). On the other hand, when the type of the surface to be cleaned is a hard floor from the detection result of the surface to be cleaned information detection unit 33, the electric vacuum cleaner 1 starts the electric motor 31 after time (T0 + T4) (solid line B in FIG. 4).

  Further, as shown in FIG. 5, when the user of the vacuum cleaner 1 operates the middle operation switch, the vacuum cleaner 1 starts the operation of the electric blower 8 after time T0 and is set in advance after time (T0 + T2). The electric blower 8 is soft-started by gradually increasing the input value of the electric blower 8 so as to reach the target input value. Moreover, the electric vacuum cleaner 1 starts the electric motor 31 after time T0, when the kind of to-be-cleaned surface is a soft floor from the detection result of the to-be-cleaned surface information detection part 33 (dashed line A in FIG. 5). On the other hand, when the type of the surface to be cleaned is a hard floor from the detection result of the surface to be cleaned information detection unit 33, the electric vacuum cleaner 1 starts the electric motor 31 after time (T0 + T4) (solid line B in FIG. 5).

  Furthermore, as shown in FIG. 6, when the user of the vacuum cleaner 1 operates the weak operation switch, the vacuum cleaner 1 starts the operation of the electric blower 8 after the time T0, and is set in advance after the time (T0 + T3). The electric blower 8 is soft-started by gradually increasing the input value of the electric blower 8 so as to reach the target input value. Moreover, the electric vacuum cleaner 1 starts the electric motor 31 after time T0, when the kind of to-be-cleaned surface is a soft floor from the detection result of the to-be-cleaned surface information detection part 33 (dashed line A in FIG. 6). On the other hand, when the type of the surface to be cleaned is a hard floor from the detection result of the surface to be cleaned information detection unit 33, the electric vacuum cleaner 1 starts the electric motor 31 after time (T0 + T5) (solid line B in FIG. 6). Note that the input of the electric motor 31 at this time is set smaller than the input of the electric motor 31 in the strong mode and the medium mode.

  As another example, as shown in FIG. 7, when the user of the vacuum cleaner 1 operates the strong operation switch, the vacuum cleaner 1 starts to operate the electric blower 8 after time T0, and after time (T0 + T1). The electric blower 8 is soft-started by gradually increasing the input value of the electric blower 8 to reach a preset target input value. Moreover, when the type of the surface to be cleaned is a soft floor, the electric vacuum cleaner 1 starts the operation of the electric motor 31 after the time T0 and is preset after the time (T0 + T6). The input value of the electric motor 31 is gradually increased so as to reach the target input value, and the electric motor 31 is soft-started (broken line A in FIG. 7). On the other hand, when the type of the surface to be cleaned is a hard floor, the electric vacuum cleaner 1 starts the operation of the electric motor 31 after time (T0 + T4-T6), and after time (T0 + T4). The input value of the motor 31 is gradually increased to reach a preset target input value, and the motor 31 is soft-started (broken line A in FIG. 7). The soft start of the electric motor 31 in this case is performed by switching control of the switching circuit 52 by the suction port body control circuit 43.

  Here, the noise generated when the vacuum cleaner 1 according to this embodiment is started is compared with the noise generated when the operation of the conventional vacuum cleaner is started. The strong mode operation of the electric blower 8 will be described.

  FIG. 8 is a diagram comparing noises generated at the start of the vacuum cleaner according to the present invention and the conventional vacuum cleaner.

  As shown in FIG. 8, in the conventional vacuum cleaner, when the electric blower is started in the strong mode (0.0 sec), the electric blower starts a slow start after the time T0 = 0.2 sec. At this time, the conventional vacuum cleaner starts the electric motor almost simultaneously with the start of the electric blower. In the conventional vacuum cleaner started in this way, the noise level suddenly increases immediately after the start of the electric blower, and about 55 dB is generated after about 0.5 sec (dashed line A in FIG. 8). .

  Note that the noise level when only the electric motor 31 is driven alone and the hard floor is swept up by the rotary cleaning body 29 is about 56 dB (the chain line B in FIG. 8).

  Next, when the electric vacuum cleaner 1 starts the electric blower 8 in the strong mode (0.0 sec), the electric blower starts a slow start after the time T0 = 0.2 sec, and after the time (T0 + T1) = 1.5 sec. The input of the electric blower 8 is made to reach a preset target input value. Moreover, the electric vacuum cleaner 1 starts the electric motor 31 after time (T0 + T4) = 700 msec progress. The vacuum cleaner 1 that is started in this way causes noise generated by the rotary cleaning body 29 to strike the surface to be cleaned as the electric motor 31 starts, and is mixed with the noise generated by the operation of the electric blower 8. The noise level is reduced (solid line C in FIG. 8).

  That is, the vacuum cleaner 1 according to the present embodiment slows the electric blower 8 to suppress the rush current at the time of start-up and reduce noise, and delays the start of the electric motor 31 to thereby reduce the electric vacuum cleaner 1. Reduction of noise at start-up related to the whole (hatched area in FIG. 8).

  Therefore, according to the vacuum cleaner 1 which concerns on this embodiment, it is possible to reduce the noise level at the time of the starting. In particular, when the suction port body 26 is run on a hard floor, the electric vacuum cleaner 1 causes the noise generated by rotating the rotary cleaning body 29 on the hard floor to follow the gradual increase in the noise level at the slow start of the electric blower 8. Thus, a natural increase in the noise level accompanying an increase in the operation output of the electric blower 8 can be obtained. On the other hand, when the suction port body 26 is caused to travel on the soft floor, the electric vacuum cleaner 1 starts the electric motor together with the start of the electric blower 8 and drives the rotary cleaning body 29. In this case, since the noise accompanying the rotation of the rotary cleaning body 29 is small, the dust adhering to the soft floor such as the carpet can be scraped more strongly than reducing the noise level when starting the electric vacuum cleaner 1. Can do.

  Moreover, according to the vacuum cleaner 1 which concerns on this embodiment, even if it is during the starting delay process of the electric motor 31, the electric motor 31 is notified by the alerting | reporting part 53 that the rotary cleaning body 29 is rotating. Can be avoided.

  Therefore, according to the present invention, it is possible to propose a vacuum cleaner with low noise generated at the start of operation.

  The vacuum cleaner according to the present invention is not limited to the canister type vacuum cleaner 1 but may be an upright type, a stick type, or a handy type vacuum cleaner.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner 2 Vacuum cleaner main body 3 Pipe part 5 Main body case 6 Wheel 7 Dust separation dust collection part 8 Electric blower 9 Main body control part 11 Power cord 12 Main body connection port 14 Power plug 19 Connection pipe 21 Dust collection hose 22 Hand control pipe 23 Grasp part 24 Operation part 25 Extension pipe 26 Suction port body 24a Stop switch 24b Start switch 28 Suction port 29 Rotating cleaning body 31 Electric motor 33 Clean surface information detection part 35 Shaft part 36 Bristle brush 37 Blade 38 Wheel 39 Axle part 42 Main body Control circuit 43 Suction port body control circuit 45 First switching element 46 Second switching element 47 Main body power supply unit 48 Power source detection unit 51 Suction port body power source unit 52 Switching circuit 53 Notification unit 54 Suction port body control unit

Claims (3)

The vacuum cleaner body,
A suction port body having a suction port communicated with the vacuum cleaner body;
An electric blower that is housed in the cleaner body and generates a negative suction pressure at the suction port;
A rotary cleaning body pivotally supported by the suction port body and disposed at the suction port;
An electric motor for rotationally driving the rotary cleaning body;
A surface to be cleaned information section that can detect or select the type of surface to be cleaned in which the suction port is disposed,
An operation unit that receives an operation start operation of the electric blower;
When the operation unit receives the operation start operation, the input of the electric blower is gradually increased to a preset target input value to start the electric blower, and the detection result or selection result of the cleaned surface information unit And a controller that starts the electric motor substantially simultaneously with or behind the start of the electric blower. When the detection result or selection result of the cleaning surface information unit is a soft floor, the control unit starts the electric motor almost simultaneously with the start of the electric blower, and the detection result or selection result of the cleaning surface information unit is 2. The vacuum cleaner according to claim 1, wherein in the case of a hard floor, the electric motor is started with a delay from the start of the electric blower. The vacuum cleaner according to claim 1, further comprising a notification unit that notifies that the electric motor is being driven substantially simultaneously with the start of the electric blower.

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