TW202315564A - Collection device for collecting dust from vacuum cleaner - Google Patents

Abstract

The present invention comprises a connection detection unit that detects whether a vacuum cleaner has been connected to a collection device, a motor that rotationally drives a rotary vane unit and thereby generates suction force that suctions dust into the vacuum cleaner, and a motor control unit that operates the motor in response to the connection detection unit detecting connection of the vacuum cleaner to the collection device and stops the motor in response to the connection detection unit detecting removal of the vacuum cleaner from the collection device. The motor control unit starts the motor on the condition that the time interval between a detection time at which the connection detection unit detects connection of the vacuum cleaner to the collection device and an operation stoppage time at which the motor was stopped before the detection time is above a prescribed interval threshold value.

Description

A recovery device for recovering dust from a vacuum cleaner

The invention relates to a recovery device for recovering dust from a vacuum cleaner.

Japanese Patent Laid-Open No. 3-267032 discloses a stick type (stick type) vacuum cleaner 300 shown in FIG. 15 . The vacuum cleaner 300 includes: a vacuum cleaner body 310 ; a suction pipe 320 extending downward from the vacuum cleaner body 310 ; and a suction nozzle 330 connected to the lower end of the suction pipe 320 . The cleaner body 310 is configured to suck dust through the suction nozzle 330 and store the sucked dust.

The cleaner body 310 includes a rectangular box-shaped casing 311 . The housing 311 has: a fan chamber 315 containing a dust suction source 312 that produces a suction force for attracting dust; and a dust storage chamber 317 partitioned from the fan chamber 315 by a filter 313 and storing captured dust. The rear wall of the casing 311 is provided with a dust discharge cylinder part 319 , and the dust discharge cylinder part 319 forms an opening for discharging the dust accumulated in the dust storage chamber 317 . The dust discharge cylinder part 319 protrudes backward from the rear wall.

In Japanese Patent Laid-Open No. 3-267032, in order to recover the dust accumulated in the dust storage chamber 317 of the vacuum cleaner 300, a recovery device 400 shown in FIG. 16 is used. The recovery device 400 has a rectangular box-shaped housing 410 , and the vacuum cleaner 300 is held by the front wall 411 of the housing 410 . A suction fan 420 is arranged inside the housing 410 . The suction fan 420 generates a suction force for sucking out dust in the dust storage chamber 317 of the cleaner 300 by rotating the rotating blade portion with a motor. A recovery chamber 440 is disposed below the suction fan 420 . The recovery chamber 440 can store dust recovered from the vacuum cleaner 300 by the suction force of the suction fan 420 , and a dust flow path 430 is extended from the recovery chamber 440 .

The front end of the dust flow path 430 is constituted by a recovery cylinder portion 431 opened on the front wall 411 of the casing 410 . As shown in FIG. 17 , the collection cylinder part 431 is configured to be fitted with the dust discharge cylinder part 319 of the vacuum cleaner 300 attached to the collection device 400 . The transfer flow path 401 is formed by fitting the recovery cylinder part 431 and the dust discharge cylinder part 319 , and the transfer flow path 401 is used to transfer dust from the vacuum cleaner 300 to the dust flow path 430 of the recovery device 400 .

Electric contacts 402 and 403 are provided on the dust discharge cylinder part 319 and the recovery cylinder part 431 . The suction fan 420 of the recovery device 400 is activated when the electrical contacts 402 and 403 are brought into contact with each other by fitting the dust exhaust tube part 319 and the recovery tube part 431 . The suction force of the suction fan 420 acts on the dust in the dust storage chamber 317 of the cleaner 300 . The dust in the dust storage chamber 317 flows into the recovery chamber 440 through the transfer flow path 401 and the dust flow path 430 sequentially by the suction force.

The temperature of the motor that attracts the fan rises while the motor is operating. The temperature of the motor will drop while the motor is stopped, but if the vacuum cleaner is connected to the recovery unit immediately after it has been removed from the recovery unit, it is possible to start the motor while the temperature of the motor is high. If the motor is started in a state where the temperature of the motor is high, the temperature of the motor will become higher, and failure of the motor may occur.

An object of the present disclosure is to provide a recovery device configured to prevent the motor from being activated when the temperature of the motor that rotates and drives the rotating blade portion is high.

The recovery device in this disclosure is configured to suck out the dust stored in the vacuum cleaner when the vacuum cleaner is connected. The recycling device is equipped with: a connection detection part, which detects whether the vacuum cleaner is connected to the recycling device; a motor, which generates a rotational driving force; and a rotating blade part, which is rotated by the rotational driving force of the motor, thereby generating an attractive force for attracting dust in the vacuum cleaner; and The motor control unit activates the motor when the connection detection unit detects that the vacuum cleaner is connected to the recovery device, and stops the motor when the connection detection unit detects that the vacuum cleaner is removed from the recovery device. The motor control part is based on the condition that the time interval between the detection time when the connection detection part detects the connection of the vacuum cleaner to the recovery device and the operation stop time before the detection time to stop the motor is higher than a predetermined interval threshold, and the connection detection part detects To the connection of the vacuum cleaner to the recovery unit, start the motor.

Other recovery devices in this disclosure are configured to suck out the dust stored in the vacuum cleaner when the vacuum cleaner is connected. The recycling device is equipped with: a connection detection part, which detects whether the vacuum cleaner is connected to the recycling device; a motor, which generates a rotational driving force; and a rotating blade part, which is rotated by the rotational driving force of the motor, thereby generating an attractive force for attracting dust in the vacuum cleaner; and The motor control unit activates the motor when the connection detection unit detects that the vacuum cleaner is connected to the recovery device, and stops the motor when the connection detection unit detects that the vacuum cleaner is removed from the recovery device. The motor control unit is based on the condition that the time interval between the detection time when the connection detection unit detects the connection of the vacuum cleaner to the recovery device and the start time of starting the motor before the detection time is higher than a predetermined interval threshold. When the vacuum cleaner is connected to the recovery unit, start the motor.

Still another recovery device in the present disclosure is configured to suck out the dust stored in the vacuum cleaner when the vacuum cleaner is connected. The recycling device is equipped with: a connection detection part, which detects whether the vacuum cleaner is connected to the recycling device; a motor, which generates a rotational driving force; and a rotating blade part, which is rotated by the rotational driving force of the motor, thereby generating an attractive force for attracting dust in the vacuum cleaner; and The motor control unit activates the motor when the connection detection unit detects that the vacuum cleaner is connected to the recovery device, and stops the motor when the connection detection unit detects that the vacuum cleaner is removed from the recovery device. The motor control unit is based on the condition that the operation time of the motor during the traced period is lower than the predetermined time length threshold during the traced period from the time when the connection detection unit detects the connection of the vacuum cleaner to the recovery device. When the connection of the vacuum cleaner to the recovery unit is detected, the motor is started.

Still another recovery device in the present disclosure is configured to suck out the dust stored in the vacuum cleaner when the vacuum cleaner is connected. The recycling device is equipped with: a connection detection part, which detects whether the vacuum cleaner is connected to the recycling device; a motor, which generates a rotational driving force; and a rotating blade part, which is rotated by the rotational driving force of the motor, thereby generating an attractive force for attracting dust in the vacuum cleaner; and The motor control unit activates the motor when the connection detection unit detects that the vacuum cleaner is connected to the recovery device, and stops the motor when the connection detection unit detects that the vacuum cleaner is removed from the recovery device. The motor control unit is based on the condition that the operating frequency of the motor during the traced period is lower than the predetermined frequency threshold during the traced period from the detection time of the connection detection unit to the detection time of the connection detection of the vacuum cleaner to the recovery device. When the vacuum cleaner is connected to the recovery unit, start the motor.

The recovery device does not activate the motor when the temperature of the motor that rotates and drives the rotary blade portion is high.

The purpose, features and advantages of the present invention will become clearer with the following detailed description and attached drawings.

form for carrying out the invention Hereinafter, the embodiments will be described in detail while referring to the drawings. However, in order to facilitate understanding by those skilled in the art, for example, detailed descriptions of well-known items may be omitted, or substantially the same items may be omitted. Composed repeating instructions. In addition, the attached drawings and the following descriptions are provided to allow those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

(Structure of vacuum cleaner) FIG. 1 is a sectional view of a stick cleaner 100 . FIG. 2 is a front view of the vacuum cleaner 100 . The vacuum cleaner 100 will be described with reference to FIGS. 1 and 2 .

The vacuum cleaner 100 has: a suction nozzle 130 for sucking dust on the floor; a vacuum cleaner body 110 mounted on the suction nozzle 130 so as to be tiltable in the front-rear direction relative to the suction nozzle 130; 112 extends upwards and is set. The cleaner body 110 and the handle 140 shown in FIGS. 1 and 2 are in an upright posture relative to the suction nozzle 130 , and do not tilt forward from the upright posture. When the vacuum cleaner 100 is in use, the vacuum cleaner body 110 and the grip portion 140 are held by the user in a posture tilted backward relative to the suction nozzle 130 .

The suction nozzle 130 has a nozzle cover 132 wider than the cleaner main body 110 to form a wide suction space 131 for sucking dust. The suction space 131 opens toward the floor surface in the front portion of the nozzle cover 132 . In the rear side of the opening portion, the suction space 131 is closed by the bottom 134 of the nozzle cover 132 . A rotary scraper brush 133 is arranged in the suction space 131 , and the scraper brush 133 passes through the opening of the suction space 131 and is exposed from the nozzle cover 132 so as to be able to contact the floor surface.

The cleaner body 110 has a cylindrical casing 111 that is elongated in the vertical direction. The lower end of the housing 111 is attached to the rear of the nozzle cover 132 so as to allow the cleaner body 110 to tilt in the front-rear direction. The upper portion of the housing 111 becomes thinner toward the upper end 112 of the housing 111 , and a gripping portion 140 extends upward from the upper end 112 . The grip part 140 is a rod-shaped part having a thickness that can be gripped by a user. As shown in FIG. 2 , an operation unit 141 (operation button) operable by a user is provided on the grip unit 140 .

The casing 111 is configured to house various components for sucking up dust on the floor surface and storing the sucked up dust. Specifically, as shown in FIG. 1 , a suction pipe 113 extending in the vertical direction is arranged inside the lower portion of the casing 111 . In addition, a dust storage chamber 152 is provided above the suction pipe 113, and a filter unit 115 is arranged in the dust storage chamber 152. The filter unit 115 captures dust while allowing air to pass through. A fan chamber 153 communicating with the dust chamber 152 is provided on the upper side of the dust chamber 152, and a suction fan 116 is arranged in the fan chamber 153. An upward suction airflow is generated. Moreover, the battery 117 which supplies electric power to the suction fan 116, and the circuit part 170 are also arrange|positioned in the fan chamber 153, and the said circuit part 170 is comprised as the charging circuit which charges the battery 117. The suction fan 116 is activated or stopped in response to the operation of the operation unit 141 .

In order to exhaust the suction airflow generated by the suction fan 116 , as shown in FIG. 2 , the fan chamber 153 is provided with an exhaust port 151 opened on the front wall of the casing 111 . A pair of electrical contacts 171 and 172 for power supply and a magnetic plate 173 are provided above the exhaust port 151 . The electrical contacts 171 , 172 and the magnetic plate 173 are arranged at the same height on the front wall of the casing 111 .

The electrical contacts 171 and 172 are arranged bilaterally symmetrically at positions separated from each other, and are electrically connected to the circuit unit 170 provided in the fan chamber 153 . The circuit unit 170 forms a current path through which current flows between the electrical contacts 171 and 172 .

The magnetic plate 173 is arranged between the electrical contacts 171 and 172 , and the magnetic plate 173 and the electrical contacts 171 and 172 are arranged at equal intervals in the circumferential direction of the casing 111 .

As shown in FIG. 3 , in the dust storage chamber 152 below the fan chamber 153 , the dust exhaust port 124 opened on the front wall of the casing 111 is formed. The dust outlet 124 is provided to discharge the dust captured by the filter unit 115 in the dust storage chamber 152 .

The dust outlet 124 is opened and closed by the cover 121 . The cover body 121 shown in FIGS. 1 and 2 is upright, and is in a closed posture for closing the dust outlet 124 . On the other hand, the lid body 121 shown in FIG. 3 is rotated downward by a predetermined angle (rotating angle of 90° or less) from the closed position, and becomes an open position in which the dust outlet 124 is opened.

The suction pipe 113 built in the lower part of the housing 111 is fixed in the housing 111, and when the cleaner body 110 tilts backward from the upright posture (the posture shown in FIG. 1 ), it tilts backward together with the housing 111. When the cleaner body 110 is in an upright position, the lower end of the suction pipe 113 is in contact with the bottom 134 of the nozzle cover 132 . That is, when the cleaner body 110 is in an upright position, the lower end of the suction pipe 113 is closed by the bottom 134 of the nozzle cover 132 . When the cleaner body 110 tilts backward from the upright position, the lower end of the suction pipe 113 will move in the direction indicated by the arrow A in FIG. 1 . As a result, the inner space of the suction pipe 113 is in a state of communicating with the suction space 131 of the nozzle cover 132 .

A check valve 114 is installed on the upper end of the suction pipe 113, and the aforementioned check valve 114 blocks the upper end of the suction pipe 113 when the suction fan 116 is not activated. The check valve 114 is configured to open the opening of the upper end of the suction pipe 113 by the upward suction force of the suction fan 116 .

(Structure of recovery device) The dust stored in the dust storage chamber 152 can be recovered by the recovery device 200 shown in FIG. 4 . The recovery device 200 is configured to suck out the dust stored in the dust storage chamber 152 of the vacuum cleaner 100 when the vacuum cleaner 100 is connected. Specifically, the recovery device 200 includes a housing 210 and a base plate 220 . The housing 210 is attached to the front side part of the base plate 220, and the rear side part of the base plate 220 is comprised so that the vacuum cleaner 100 can be mounted. When the vacuum cleaner 100 is placed on the rear portion of the pedestal 220 , a state in which the vacuum cleaner 100 is connected to the recovery device 200 can be obtained.

Various parts are provided in the housing 210 of the recovery device 200 , and these parts are used to suck out the dust stored in the dust storage chamber 152 of the vacuum cleaner 100 . A dust flow path 230 is provided in the casing 210 of the recovery device 200 , and one end of the dust flow path 230 is opened outside the casing 210 for the dust in the dust storage chamber 152 of the vacuum cleaner 100 to flow in. The other end of the dust passage 230 is connected to a recovery chamber 240 for storing dust recovered from the vacuum cleaner 100 , and a suction source 250 is disposed below the recovery chamber 240 . The suction source 250 includes: a motor 251 that generates a rotational driving force; and a rotating blade portion 252 that is rotated by the rotational driving force of the motor 251 . The motor 251 of the suction source 250 is electrically connected to the motor control unit 260 in the housing 210 . The motor 251 operates under the control of the motor control unit 260 to rotate the rotating blade unit 252 . The rotating blade portion 252 is configured to generate an attractive force by rotation.

The casing 210 has: an upper part 212 for accommodating the dust flow path 230 and a recovery chamber 240; and a lower part 211 for supporting the upper part 212 at a predetermined height. The upper part 212 is configured to abut against the cleaner body 110 , and when the cleaner body 110 is connected to the upper part 212 , the dust flow path 230 communicates with the dust storage chamber 152 of the cleaner 100 . In order to avoid interference with the suction nozzle 130 protruding forward from the cleaner body 110, the lower part 211 of the housing 210 is formed smaller than the upper part 212 in the front-rear direction, and a groove for accommodating the suction nozzle 130 is formed behind the lower part 211. The accommodating space 213.

The upper portion 212 includes a peripheral wall portion 271 and an upper wall portion 272 . As shown in FIG. 5 , the peripheral wall portion 271 is erected to form a substantially rectangular inner space in a plane view, and the rear wall 214 of the peripheral wall portion 271 is formed to be connected to the vacuum cleaner 100 . The upper wall portion 272 is configured to close a substantially rectangular internal space surrounded by the peripheral wall portion 271 from above.

As shown in FIG. 5 , the rear wall 214 of the peripheral wall portion 271 is provided with a groove portion 215 complementary to the front portion of the cleaner body 110 . As shown in FIG. 6 , the groove portion 215 is extended in the vertical direction. The front side portion of the cleaner body 110 in the upright posture is fitted into the groove portion 215 . By fitting the cleaner body 110 into the groove portion 215 , the cleaner body 110 is positioned in the width direction (left-right direction) of the groove portion 215 .

A rectangular recovery port 216 is formed in the concave groove portion 215 of the rear wall 214 of the peripheral wall portion 271 . The recovery port 216 is formed at the following position: when the vacuum cleaner 100 is placed on the pedestal plate 220 when the vacuum cleaner body 110 is in an upright posture, and the front side part of the vacuum cleaner body 110 is fitted into the groove portion 215, as shown in FIGS. 3 and 7 . The positions where the dust outlets 124 overlap in the front-rear direction are shown. That is, as shown in FIG. 7 , the recovery port 216 faces the dust discharge port 124 of the vacuum cleaner 100 when the vacuum cleaner 100 is installed in the recovery device 200 . The recovery port 216 has a size for entering the recovery port 216 when the cover body 121 of the vacuum cleaner 100 is in an open position.

The recovery port 216 is formed by the lower end of the dust flow path 230 . As shown in FIG. 4 , the dust flow path 230 is disposed in the upper portion 212 of the casing 210 and extends in the vertical direction. The upper end of the dust flow path 230 is connected to the recovery chamber 240 , and when the cover 121 of the vacuum cleaner 100 opens the discharge port 124 , the dust flow path 230 is connected to the dust discharge port 124 and the dust storage chamber 152 .

As shown in FIG. 5 , the recovery chamber 240 is a space configured to form a rectangle in a planar view. The recovery chamber 240 includes: a peripheral wall 241 surrounding a rectangular space in the circumferential direction; a bottom wall 245 closing the rectangular space from below; and an upper wall 248 closing the rectangular space from above. The upper end of the dust flow path 230 is connected to the peripheral wall 241 .

A circular opening is formed in the bottom wall 245 of the recovery chamber 240 , and a dust filter 247 is attached to this opening as shown in FIG. 5 . The dust filter 247 is configured to capture dust while allowing air to pass through. A suction source 250 is arranged below the dust filter 247 . When the vacuum cleaner 100 is installed in the recovery device 200 , the suction force of the suction source 250 acts on the cover 121 of the vacuum cleaner 100 through the recovery chamber 240 and the dust flow path 230 . The motor 251 and the rotating blade portion 252 of the suction source 250 are configured to obtain a suction force of a magnitude that tilts the lid body 121 from the closed position to the open position and attracts dust in the dust chamber 152 .

The motor 251 of the suction source 250 is controlled by the motor control unit 260 so that the suction source 250 operates in response to the connection of the vacuum cleaner 100 to the recovery device 200 . In order to detect the connection of the vacuum cleaner 100 to the recovery device 200 , conductive contact pieces 283 , 284 are provided on the upper part of the groove portion 215 to contact the electrical contacts 171 , 172 of the vacuum cleaner body 110 .

The contact pieces 283, 284 are configured to come in and out relative to a pair of holes. The aforementioned pair of holes are provided at positions facing the electrical contacts 171, 172 of the vacuum cleaner body 110 when the vacuum cleaner body 110 has been inserted into the groove portion 215. superior. The contact pieces 283 , 284 are given potential energy in the direction protruding from the hole, and when the cleaner body 110 is inserted into the groove 215 , they will respectively contact the electrical contacts 171 , 172 . In this state, the contact pieces 283 , 284 are electrically connected to each other through the electrical contacts 171 , 172 and the circuit portion 170 . On the other hand, in a state where the cleaner body 110 is not inserted into the groove portion 215, the contact pieces 283, 284 are insulated from each other.

The detection circuit 290 for detecting the contact state of the contact pieces 283 , 284 to the electrical contacts 171 , 172 of the vacuum cleaner body 110 is disposed in the housing 210 of the recovery device 200 . The detection circuit 290 is electrically connected to the motor control unit 260 and configured to output the detection result of the contact state of the contact pieces 283 , 284 to the electrical contacts 171 , 172 of the cleaner body 110 to the motor control unit 260 .

In detail, as shown in FIG. 8, the detection circuit 290 includes: a connection detection part 286, which detects the contact state of the contact pieces 283, 284 to the electric contacts 171, 172 of the vacuum cleaner body 110; and a power supply part 285, which is electrically connected to the contacts. Sheets 283, 284. The power supply unit 285 is configured to generate a predetermined potential difference between the contact pieces 283 and 284 . For example, the power supply unit 285 can also be constituted by a converter which is electrically connected to the external power source 287 and converts the AC voltage of the external power source 287 into a DC voltage.

In the state where the contact pieces 283, 284 have been in contact with the electrical contacts 171, 172 of the vacuum cleaner body 110, an electrical path 288 will be formed, and the aforementioned electrical path 288 supplies current from the power supply part 285 to the contact piece 283 and the circuit part 170 in sequence. , the electrical contact 172 and the contact piece 284 and return to the power supply part 285 . The connection detection unit 286 is configured to detect the current flowing through the conduction path 288 and calculate the resistance between the contact pieces 283 and 284 based on the detected current. Furthermore, the connection detection unit 286 is configured to output a detection signal for notifying that the connection of the vacuum cleaner 100 to the recovery device 200 is detected as long as the calculated resistance is below a predetermined resistance threshold. In addition, as long as the vacuum cleaner 100 is connected to the recovery device 200, the connection detection part 286 will continue to output detection signals. The connection detection unit 286 can also be constituted by, for example, an ammeter, a calculation circuit, and a signal generation circuit. The ampere meter detects a current, the calculation circuit calculates resistance from the detected current, and the signal generation circuit generates a detection signal.

The connection detection part 286 is electrically connected to the motor control part 260 , and the detection signal is transmitted to the motor control part 260 . The motor control unit 260 is configured to perform predetermined determination processing of whether to activate the motor 251 of the suction source 250 in response to receiving the detection signal. When the motor control unit 260 determines to activate the motor 251 of the suction source 250, the motor 251 is activated. In addition, the motor control unit 260 does not activate the motor 251 in the following cases. ・When the motor control unit 260 has not received the detection signal. ・As a result of the above determination process, the motor control unit 260 determines not to activate the motor 251 .

Also, if the reception of the detection signal from the connection detection unit 286 is interrupted during the operation of the motor 251 , the motor control unit 260 stops the motor 251 .

In addition, the motor control unit 260 is configured to store operation history information of the motor 251 (time information of starting and stopping of the motor 251 , etc.). The operation history information is used in the above-mentioned determination process when the recovery device 200 is activated. The motor control unit 260 may also be constituted by a control circuit equipped with a storage element for storing operation history information. In this control circuit, a microprocessor and a signal generator can be mounted. The microprocessor can execute the above-mentioned determination process when the motor 251 starts, and the signal generator is used to activate and stop the motor 251 .

In order to maintain the contact state of the contact pieces 283 and 284 to the cleaner body 110 , a holding portion 297 is provided as shown in FIG. 6 . The holding part 297 can also be constituted by a magnet plate, which is provided at a position facing the magnetic plate 173 shown in FIG. The magnetic force acting between the holding part 297 and the magnetic plate 173 serves as a holding force for holding the contact state of the contact pieces 283 and 284 to the cleaner body 110 .

The positional relationship between the holding portion 297 and the contact pieces 283 , 284 corresponds to the positional relationship between the magnetic plate 173 and the electrical contacts 171 , 172 of the cleaner body 110 . That is, the holding portion 297 is provided at the same height position as the contact pieces 283 , 284 , and is arranged at equal intervals from the contact pieces 283 , 284 in the circumferential direction of the groove portion 215 . In other words, the holding portion 297 is at the same height position as the contact pieces 283 and 284 , and is arranged at the center position in the width direction of the groove portion 215 .

(Operation of the vacuum cleaner during cleaning work) The cleaner 100 is held by the user in a posture in which the cleaner body 110 and the grip 140 are inclined rearward with respect to the suction nozzle 130 during the cleaning operation. By making the cleaner main body 110 and the grip part 140 inclined backward with respect to the suction nozzle 130, it becomes easy to move the suction nozzle 130 forward while pushing. In this state, the inner space of the suction pipe 113 communicates with the suction space 131 of the suction nozzle 130 .

Afterwards, when the user operates the operation part 141 to activate the suction fan 116 , the suction fan 116 generates upward suction force. With this suction force, the check valve 114 opens the upper end of the suction pipe 113 .

When the upper end of the suction pipe 113 is opened, the suction force of the suction fan 116 generates a suction airflow that sucks dust through the suction space 131 of the suction nozzle 130 . The suction air flows into the dust storage chamber 152 through the suction nozzle 130 and the suction pipe 113 . The dust on the floor surface flows into the dust storage chamber 152 along with the suction airflow, and is captured by the filter unit 115 arranged in the dust storage chamber 152 . The dust captured by the filter unit 115 is stored in the dust storage chamber 152 .

When the cleaning operation is completed, the user operates the operation unit 141 to stop the suction fan 116 . As a result, the suction force of the suction fan 116 disappears, and the check valve 114 closes the upper end of the suction pipe 113 . Therefore, the dust captured by the filter unit 115 remains in the dust storage chamber 152 without falling into the suction pipe 113 .

(Operation of the recovery device when collecting dust) The user attaches the vacuum cleaner 100 to the recovery device 200 in order to recover the dust accumulated in the dust storage chamber 152 to the recovery device 200 . Specifically, the user sets the vacuum cleaner 100 on the base plate 220 of the recovery device 200 , and sets the vacuum cleaner body 110 and the grip portion 140 in an upright posture. When the upright cleaner body 110 fits into the groove 215 of the recovery device 200 , the cover 121 of the cleaner 100 faces the recovery port 216 of the recovery device 200 in the front-rear direction. In this state, the contact pieces 283 , 284 of the recovery device 200 are pushed forward by the cleaner body 110 , and the contact pieces 283 , 284 sink into the holes of the rear wall 214 .

At this time, the contact pieces 283 and 284 are in contact with the electrical contacts 171 and 172 of the vacuum cleaner body 110 respectively, forming an electrical path 288 as shown in FIG. 8 . As a result, current flows through the conduction path 288 due to the potential difference generated between the contact pieces 283 and 284 by the power supply unit 285 . At this time, the connection detection unit 286 detects a resistance below the resistance threshold between the contact pieces 283 and 284 , and outputs a detection signal that notifies that the connection of the vacuum cleaner 100 to the recovery device 200 is detected. After the motor control unit 260 receives the detection signal, the motor control unit 260 immediately performs a process of determining whether to activate the motor 251 of the suction source 250 . The determination processing will be described in detail separately. As a result of the determination processing, when the motor control unit 260 determines to determine the motor 251, that is, the motor 251 is started.

When the motor 251 of the suction source 250 is activated, the rotating blade portion 252 is driven to rotate to generate suction. The suction force acts on the cover 121 facing the recovery port 216 through the recovery chamber 240 and the dust flow path 230 . The lid body 121 is attracted by the suction source 250 , and as shown in FIG. 7 , tilts downward from the closed position for closing the dust discharge port 124 to the open position for opening the dust discharge port 124 .

When the cover 121 is rotated downward, that is, the discharge port 124 is opened, and the dust flow path 230 will be in a state of communicating with the dust storage chamber 152 . Therefore, the suction force of the suction source 250 acts on the dust in the dust storage chamber 152 , and the dust flows out from the dust outlet 124 . The dust flowing out from the dust discharge port 124 flows into the recovery chamber 240 through the recovery port 216 and the dust flow path 230 . In the recovery chamber 240 , dust is captured by the dust filter 247 and stored in the recovery chamber 240 .

(motor stop control and start control 1) Referring to FIG. 9 , the stop control to stop the motor 251 of the suction source 250 and the start control 1 to start the motor 251 will be described below.

While the motor 251 of the suction source 250 is operating as described above, the motor control unit 260 determines whether or not the detection signal from the connection detection unit 286 continues to be received (step S110 in FIG. 9 ). As long as the motor control unit 260 receives the detection signal indicating that the vacuum cleaner 100 is connected to the recovery device 200 (step S110: “Yes”), it will continue to operate the motor 251 . On the other hand, if the reception of the detection signal is interrupted (step S110: "No"), the motor control unit 260 stops the motor 251 (step S120), and stores the time when the motor 251 is stopped as the stop time (step S130).

After the stop processing of the motor 251 (steps S120 and S130 ), the motor control unit 260 determines whether or not a detection signal from the connection detection unit 286 has been received (step S140 ). Until the detection signal is received (step S140: "No"), the motor control unit 260 will maintain the stop state of the motor 251 . On the other hand, if the detection signal is received (step S140: YES), the motor control unit 260 will calculate the time interval between the time of receiving the detection signal and the above-mentioned operation stop time (step S150). This time interval is compared with a predetermined interval threshold (step S160). The interval threshold can also be set to such a value as to ensure that the temperature of the motor 251 has dropped sufficiently.

If the time interval calculated in step S150 is higher than the interval threshold value, the motor control unit 260 starts the motor 251 (step S170 ). On the other hand, if the time interval is below the interval threshold (step S160: "No"), the motor control unit 260 waits to receive the next detection signal (step S140: "No"). If the next detection signal is received (step S140: "Yes"), the processing of step S150 and step S160 will be executed again. In other words, the motor 251 is prevented from starting until the time interval between the time of receiving the detection signal and the time of stopping the operation is higher than the interval threshold.

In the activation control 1 shown in FIG. 9, the activation of the motor 251 immediately after the motor 251 stops can be prevented. In other words, the start of the motor 251 is allowed after a time period determined by the interval threshold has elapsed since the stop of the motor 251 . As long as the interval threshold is set such that the temperature of the motor 251 is sufficiently lowered, the start of the motor 251 is allowed after the temperature of the motor 251 is sufficiently lowered. That is, it is possible to prevent the motor 251 from being started in a state where the temperature of the motor 251 is high.

(Start control of recovery unit 2) In the start control 1 shown in FIG. 9 , whether to start the motor 251 is determined based on the time interval from when the motor 251 is stopped to when the connection of the vacuum cleaner 100 is detected. Alternatively, as shown in FIG. 10 , whether to start the motor 251 may also be determined according to the time interval from the stored operation start time before the motor 251 stops to the detection time when the connection of the vacuum cleaner 100 is detected.

Before the motor control unit 260 receives the detection signal from the connection detection unit 286 , it stores the operation start time of the motor 251 when the motor 251 was previously activated. After the motor control unit 260 receives the detection signal from the connection detection unit 286 (step S140: YES), it calculates the time interval between the time when the detection signal is received and the time when the operation starts (step S155). This time interval is compared with a predetermined interval threshold (step S160). This interval threshold is set to a value larger than the allowable shortest start time interval when the motor 251 is repeatedly started.

If the time interval calculated in step S155 is higher than the interval threshold, the motor control unit 260 starts the motor 251 (step S170 ), and stores the start time of the motor 251 (step S180 ). The information of the operation start time stored in step S180 is used in the determination process (steps S155, S160) when the motor 251 is started next time. On the other hand, if the time interval is below the interval threshold (step S160: "No"), the motor control unit 260 waits to receive the next detection signal (step S140: "No"). If the next detection signal is received (step S140: "Yes"), the processing of step S155 and step S160 will be executed again. In other words, the starting of the motor 251 is prevented until the time interval between the time of receiving the detection signal and the time of starting the motion is higher than the interval threshold.

In the starting control 2 shown in FIG. 10, the motor 251 can be prevented from being started repeatedly in a short time. Therefore, the load on the motor 251 does not become excessive.

The activation control 2 shown in FIG. 10 can also be executed together with the activation control 1 shown in FIG. 9 . At this time, when all of the following activation conditions are satisfied, activation of the motor 251 is permitted. ・Activation condition: The time interval from the moment when the operation of the motor 251 is stopped before to the time when the connection of the vacuum cleaner 100 is detected is higher than a predetermined interval threshold value (activation control 1: FIG. 9 ). The time interval from the start of operation of the motor 251 to the detection time of the connection of the vacuum cleaner 100 is higher than a predetermined interval threshold value (activation control 2: FIG. 10 ).

(Activation control of recovery unit 3) If the motor 251 is operated for a long period of time before the detection time when the connection of the vacuum cleaner 100 to the recovery device 200 is detected, the temperature of the motor 251 at the detection time becomes high. In order to prevent starting the motor 251 in such a high temperature state, starting control 3 as shown in FIG. 11 can also be performed.

FIG. 11 shows a situation where the motor 251 starts at the start time ts1 and stops at the stop time te1. Also, after the operation stop time te1, the motor 251 is restarted at the operation start time ts2, and is stopped again at the operation stop time te2. After the operation stop time te2, the connection detection part 286 detects the connection of the vacuum cleaner 100 to the recovery apparatus 200 at the detection time td.

The motor control unit 260 calculates the time tb (=td−tp) from the detection time td to the detection time td by a predetermined retrospective period tp, and calculates the operating time length of the motor 251 from the time tb to the detection time td. In Fig. 11, since the time tb is before the operation stop time te1, the actuation time length of the motor 251 is calculated as the difference between the operation stop time te1 and the time tb and the second operation time length tl2 (=operation stop time te2 - the sum of the action start time ts2).

Assuming that as shown in FIG. 12 , the time interval between the actuation stop time te2 and the detection time td is longer, the calculated actuation time length will be shorter. In FIG. 12 , the time tb traced back from the detection time td to the retrospective period tp is the time between the operation start time ts2 and the operation stop time te2, and the calculated operation time length at this time is the difference between the operation stop time te2 and the time tb. differential value.

The motor control unit 260 compares the operating time length with a predetermined time length threshold. If the motor 251 has a structure that does not easily dissipate heat, the time threshold can be set to a smaller value; on the contrary, if the motor 251 is easily dissipated, the time threshold can be set to a larger value.

The motor control unit 260 activates the motor 251 in response to the detection of the connection of the vacuum cleaner 100 to the recovery device 200 at the detection time td on the condition that the operating time length is lower than the time length threshold. In other words, as long as the operating time is longer than the time threshold, the motor control unit 260 will not start the motor 251 . In this way, if the activation of the motor 251 is controlled, it is possible to prevent the motor 251 from being activated while the motor 251 is at a high temperature.

The activation control 3 shown in FIG. 11 and FIG. 12 can also be executed together with the activation control 1 shown in FIG. 9 . At this time, when all of the following activation conditions are satisfied, activation of the motor 251 is permitted. ・Activation condition: The time interval from the previous operation stop time te2 to the detection time td of the connection of the vacuum cleaner 100 is higher than a predetermined interval threshold value (activation control 1: FIG. 9 ). The operating time of the motor 251 is lower than a predetermined time threshold (activation control 3: FIG. 11 and FIG. 12 ).

The activation control 3 shown in FIG. 11 and FIG. 12 can also be executed together with the activation control 2 shown in FIG. 10 . At this time, when all of the following activation conditions are satisfied, activation of the motor 251 is permitted. ・Activation condition: The time interval from the previous operation start time ts2 to the detection time td of the connection of the vacuum cleaner 100 is higher than a predetermined interval threshold value (activation control 2: FIG. 10 ). The operating time of the motor 251 is lower than a predetermined time threshold (activation control 3: FIG. 11 and FIG. 12 ).

It is also possible to execute all the start-up controls 1 to 3 in Fig. 9 to Fig. 12 . At this time, when all of the following activation conditions are satisfied, activation of the motor 251 is permitted. ・Activation condition: The time interval from the moment when the operation of the motor 251 is stopped until the connection detection time td of the vacuum cleaner 100 is higher than a predetermined interval threshold value (activation control 1: FIG. 9 ). The time interval from the start of operation of the motor 251 to the detection time td of the connection of the vacuum cleaner 100 is higher than a predetermined interval threshold value (activation control 2: FIG. 10 ). The operating time of the motor 251 is lower than the predetermined time threshold (activation control 3: FIG. 11 and FIG. 12 ).

(Start control of recovery unit 4) If the motor 251 is activated at a high frequency for a predetermined period, the load on the motor 251 will increase. In order to prevent the motor 251 from starting at a high frequency, the starting control 4 shown in FIG. 13 or 14 may also be executed.

In FIG. 13 , the motor control unit 260 holds data of operation stop times te1 to ten (n is a natural number) before the detection time td. In FIG. 14 , the motor control unit 260 holds data of operation start times ts1 to tsn (n is a natural number) before the detection time td.

At detection time td, when connection detection unit 286 detects connection of vacuum cleaner 100 to recovery device 200 , motor control unit 260 calculates time tb at which detection time td has been traced back by a predetermined trace period tp. After that, the motor control unit 260 counts how many stop times ( FIG. 13 ) or start times ( FIG. 14 ) during the period from the time tb to the detection time td as the motor 251 operating frequency. The operating frequency of the motor 251 is compared with a predetermined frequency threshold. In addition, the frequency threshold is set to a value lower than the upper limit value of the operating frequency allowed by the motor 251 .

If the operating frequency of the motor 251 is lower than the frequency threshold, the motor control unit 260 will activate the motor 251 . On the other hand, if the operating frequency of the motor 251 is equal to or higher than the frequency threshold, the motor control unit 260 does not start the motor 251 but maintains the stopped state of the motor 251 . In this way, as long as the start-up of the motor 251 is controlled, the motor 251 can be prevented from operating at an excessively high frequency during the traceback period tp.

The activation control 4 shown in FIG. 13 or FIG. 14 can also be executed together with any one or all of the activation controls 1-3 shown in FIG. 9 to FIG. 12 . At this time, the starting condition for starting the motor 251 is a combination of the starting condition of the starting control 4 shown below and any one or all of the starting conditions of the starting control 1 to 3 executed together with the starting control 4 . ・Activation condition of activation control 4: The operating frequency of the motor 251 during the traceback period tp is lower than a predetermined frequency threshold.

In the above embodiment, whether or not the vacuum cleaner 100 is connected to the recovery device 200 is determined based on the resistance detected by the connection detection unit 286 . As an alternative, the connection of the vacuum cleaner 100 to the recovery device 200 can also be detected mechanically by means of a contact-type switching element. Alternatively, the connection of the vacuum cleaner 100 to the recovery device 200 may also be detected by an optical sensor or a sensor for detecting electrostatic capacity.

In the above-mentioned embodiment, the recovery device 200 and the vacuum cleaner 100 are not configured to communicate with each other. As an alternative, the recovery device 200 and the vacuum cleaner 100 can also be configured to communicate with each other. For example, the vacuum cleaner 100 can also be configured to output a signal indicating that it has been connected to the recycling device 200 when it is installed in the recycling device 200 . At this time, the connection detection part 286 of the recovery apparatus 200 may be comprised by the receiver which receives the signal from the vacuum cleaner 100. As shown in FIG. That is, the connection detection unit 286 may also be configured to detect the connection of the vacuum cleaner 100 to the recovery device 200 by receiving a signal indicating that it has been connected to the recovery device 200 .

In the above embodiment, the motor 251 of the recovery device 200 is stopped when the vacuum cleaner 100 is removed from the recovery device 200 . In addition, the motor 251 can also be stopped on the condition that it continues to operate for a predetermined length of time. In this case, the above-mentioned activation controls 1 to 4 can also be applied to the activation of the motor 251 that is stopped on the condition that it continues to operate for a predetermined length of time.

In the above embodiment, the collection device 200 is configured to collect dust from the stick cleaner 100 . Alternatively, the recovery device can also be configured to recover dust from a cylinder vacuum cleaner or a hand-held vacuum cleaner.

(effect, etc.) The recovery device 200 of the above-mentioned embodiment has the following features and exerts the following effects.

The recovery device in one aspect of the above-mentioned embodiment is configured to suck out the dust stored in the vacuum cleaner when the vacuum cleaner is connected. The recycling device is equipped with: a connection detection part, which detects whether the vacuum cleaner is connected to the recycling device; a motor, which generates a rotational driving force; and a rotating blade part, which is rotated by the rotational driving force of the motor, thereby generating an attractive force for attracting dust in the vacuum cleaner; and The motor control unit activates the motor when the connection detection unit detects that the vacuum cleaner is connected to the recovery device, and stops the motor when the connection detection unit detects that the vacuum cleaner is removed from the recovery device. The motor control part is based on the condition that the time interval between the detection time when the connection detection part detects the connection of the vacuum cleaner to the recovery device and the operation stop time before the detection time to stop the motor is higher than a predetermined interval threshold, and the connection detection part detects To the connection of the vacuum cleaner to the recovery unit, start the motor.

While the motor is operating, the temperature of the motor rises, but while the motor is stopped, the temperature of the motor decreases. However, if the stop period of the motor is short, the temperature of the motor does not drop so much.

In the above configuration, in order to prevent the motor from being started in a state where the temperature of the motor has not dropped, the motor control unit, when detecting the connection of the vacuum cleaner to the recovery device, compares the detection time with the operation stop time at which the motor was stopped before the detection time. The time interval is compared with the interval threshold. As a result of this comparison process, if the time interval between the operation stop time and the detection time is higher than the interval threshold, the motor control unit starts the motor. As long as the interval threshold is set to a size at which the temperature of the motor can be sufficiently lowered, the motor can be started in a state where the temperature has been sufficiently lowered. As a result, the rotating blade portion is rotated by the motor to generate an attractive force. By this suction, the dust in the vacuum cleaner connected to the recovery device will be sucked into the recovery device. Afterwards, as soon as the vacuum cleaner is removed from the recovery device, the motor is stopped and the suction of dust from the vacuum cleaner towards the recovery device is ended. On the other hand, as long as the time interval between the operation stop time and the detection time is below the interval threshold value, the motor control unit does not start the motor but keeps the motor in a stopped state. That is, it is possible to prevent the motor from being started in a state where the temperature has not dropped sufficiently.

In the above configuration, the motor control unit may start the motor on the condition that the time interval between the detection time and the operation start time before the operation stop time is higher than another interval threshold.

In the above configuration, the interval threshold is set for the time interval between the activation start time of the starter motor and the detection time, and it is a condition for starting the motor that the time interval is higher than the interval threshold. Therefore, as long as the time interval between the operation start time and the detection time is equal to or less than the interval threshold value, the motor control unit will not start the motor. As a result, the motor can be prevented from being repeatedly started in an excessively short period of time. Therefore, excessive load on the motor can be prevented.

In the above configuration, the motor control unit may start the motor on the condition that the motor operation time during the traced period from the detected time is lower than the predetermined time threshold during the traced period.

In the above configuration, it is presumed that the temperature of the motor will increase at the detection time if the operation time of the motor is longer during the traceback period from the detection time by a predetermined time length. In order to prevent the motor from being started in such a state, the motor control unit starts the motor on the condition that the operating time length is lower than the time length threshold. Since the motor control unit does not start the motor as long as the operating time is equal to or longer than the time length threshold value, it is possible to suppress starting the motor while the temperature of the motor is high.

In the above configuration, the motor control unit may start the motor on the condition that the operating frequency of the motor is lower than a predetermined frequency threshold during a retroactive period from the detection time for a predetermined length of time.

In the above configuration, if the operating frequency of the motor is high during the traceback period after the predetermined time length from the detection time, the motor receives a large load during the traceback period. In order to prevent the motor from being further loaded by starting the motor in such a state, the motor control unit starts the motor on the condition that the operating frequency is lower than the frequency threshold. Since the motor control unit does not start the motor as long as the operating frequency of the motor is equal to or higher than the frequency threshold value, it is possible to suppress starting of the motor in a state where the load on the motor becomes high.

The recovery device in another aspect of the above-mentioned embodiment is configured to suck out the dust stored in the vacuum cleaner when the vacuum cleaner is connected. The recycling device is equipped with: a connection detection part, which detects whether the vacuum cleaner is connected to the recycling device; a motor, which generates a rotational driving force; and a rotating blade part, which is rotated by the rotational driving force of the motor, thereby generating an attractive force for attracting dust in the vacuum cleaner; and The motor control unit activates the motor when the connection detection unit detects that the vacuum cleaner is connected to the recovery device, and stops the motor when the connection detection unit detects that the vacuum cleaner is removed from the recovery device. The motor control unit is based on the condition that the time interval between the detection time when the connection detection unit detects the connection of the vacuum cleaner to the recovery device and the start time of starting the motor before the detection time is higher than a predetermined interval threshold. When the vacuum cleaner is connected to the recovery unit, start the motor.

The recovery device in still another aspect of the above-mentioned embodiment is configured to suck out the dust stored in the vacuum cleaner when the vacuum cleaner is connected. The recycling device is equipped with: a connection detection part, which detects whether the vacuum cleaner is connected to the recycling device; a motor, which generates a rotational driving force; and a rotating blade part, which is rotated by the rotational driving force of the motor, thereby generating an attractive force for attracting dust in the vacuum cleaner; and The motor control unit activates the motor when the connection detection unit detects that the vacuum cleaner is connected to the recovery device, and stops the motor when the connection detection unit detects that the vacuum cleaner is removed from the recovery device. The motor control unit is based on the condition that the operation time of the motor during the traced period is lower than the predetermined time length threshold during the traced period from the time when the connection detection unit detects the connection of the vacuum cleaner to the recovery device. When the connection of the vacuum cleaner to the recovery unit is detected, the motor is started.

The recovery device in still another aspect of the above-mentioned embodiment is configured to suck out the dust stored in the vacuum cleaner when the vacuum cleaner is connected. The recycling device is equipped with: a connection detection part, which detects whether the vacuum cleaner is connected to the recycling device; a motor, which generates a rotational driving force; and a rotating blade part, which is rotated by the rotational driving force of the motor, thereby generating an attractive force for attracting dust in the vacuum cleaner; and The motor control unit activates the motor when the connection detection unit detects that the vacuum cleaner is connected to the recovery device, and stops the motor when the connection detection unit detects that the vacuum cleaner is removed from the recovery device. The motor control unit is based on the condition that the operating frequency of the motor during the traced period is lower than the predetermined frequency threshold during the traced period from the detection time of the connection detection unit to the detection time of the connection detection of the vacuum cleaner to the recovery device. When the vacuum cleaner is connected to the recovery unit, start the motor.

Industrial availability The technique of this embodiment is suitably utilized for the equipment used for cleaning work.

100,300: vacuum cleaner 110,310: Vacuum cleaner body 111,210,311,410: Shell 112: upper end 113,320: suction tube 114: check valve 115: filter part 116,420: attract fans 117: battery 121: cover body 124: Dust outlet 130,330: suction nozzle 131: Inhalation space 132: nozzle cover 133: scraping brush 134: bottom 140: control department 141: Operation Department 151: Exhaust port 152,317: Dust storage room 153,315: Fan room 170: Circuit Department 171, 172, 402, 403: electrical contacts 173: Magnetic board 200,400: Recovery device 211: lower part 212: upper part 213:Accommodating space 214: rear wall 215: concave groove 216: Recovery port 220: Pedestal plate 230,430: dust flow path 240,440: Recovery Room 241: Zhoubi 245: bottom wall 247: Dust filter 248: upper wall 250: source of attraction 251: motor 252:Rotary blade part 260:Motor control department 271: Peripheral wall 272: upper wall 283,284: contact piece 285: Power supply department 286: Connection detection part 287: External power supply 288: Power path 290: detection circuit 297: Maintenance Department 312: Vacuum source 313: filter 319: Dust exhaust cylinder 401: transfer flow path 411: front wall 431: Recycling cylinder A: arrow tb: time td: detection time te1, te2, ten: action stop time tl2: Action time length tp: retrospective period ts1, ts2, tsn: Action start time S110, S120, S130, S140, S150, S155, S160, S170, S180: steps

Fig. 1 is a sectional view of the vacuum cleaner. Fig. 2 is a front view of the vacuum cleaner. Fig. 3 is a cross-sectional view around a dust storage chamber of the vacuum cleaner. Fig. 4 is a sectional view of the vacuum cleaner and the recovery device. Fig. 5 is a cross-sectional view of the vacuum cleaner and the recovery device viewed from above. Fig. 6 is a front view of the recovery device. Fig. 7 is a cross-sectional view around a dust storage chamber of the vacuum cleaner. Fig. 8 is a schematic functional configuration diagram of a detection circuit provided in the recovery device. Fig. 9 is a schematic flowchart of activation control performed by a motor control unit of the recovery device. Fig. 10 is a schematic flow chart of another activation control performed by the motor control unit. Fig. 11 is a conceptual diagram of other start-up control performed by a motor control unit. Fig. 12 is a conceptual diagram of other start-up control performed by the motor control unit. Fig. 13 is a conceptual diagram of another activation control performed by the motor control unit. Fig. 14 is a conceptual diagram of other start-up control performed by the motor control unit. Fig. 15 is a schematic cross-sectional view of a conventional vacuum cleaner. Fig. 16 is a schematic perspective view of a conventional recovery device. Fig. 17 is a schematic perspective view of a connection portion between a conventional vacuum cleaner and a recovery device.

100: vacuum cleaner

110: Vacuum cleaner body

111: shell

112: upper end

113: suction tube

114: check valve

115: filter part

116: Attract fans

117: battery

121: cover body

130: suction nozzle

131: Inhalation space

132: nozzle cover

133: scraping brush

134: bottom

140: control department

151: Exhaust port

152: Dust storage room

153: Fan room

170: Circuit Department

200: Recovery device

210: shell

211: lower part

212: upper part

213:Accommodating space

214: rear wall

216: Recovery port

220: Pedestal plate

230: dust flow path

240: Recovery Room

241: Zhoubi

245: bottom wall

248: upper wall

250: source of attraction

251: motor

252:Rotary blade part

260:Motor control department

271: Peripheral wall

272: upper wall

A: arrow

Claims (7)

A recovery device, which is configured to suck out the dust stored in the vacuum cleaner when the vacuum cleaner is connected, and the recovery device has: a connection detection unit to detect whether the aforementioned vacuum cleaner is connected to the aforementioned recycling device; A motor that generates a rotational drive force; The rotating blade part is rotated by the rotational driving force of the motor, thereby generating a suction force for attracting dust in the vacuum cleaner; and The motor control unit starts the motor in response to the connection detection unit detecting the connection of the vacuum cleaner to the recovery device, and stops the motor in response to the connection detection unit detecting the removal of the vacuum cleaner from the recovery device, The motor control unit is based on the condition that the time interval between the detection time when the connection detection unit detects the connection of the vacuum cleaner to the recovery device and the operation stop time when the motor is stopped before the detection time is higher than a predetermined interval threshold. When the connection detection unit detects the connection of the vacuum cleaner to the recovery device, the motor is started. The recovery device according to claim 1, wherein the motor control unit starts the motor on the condition that the time interval between the detection time and the start time of starting the motor before the stop time is higher than other interval thresholds. The recovery device according to claim 1 or 2, wherein the motor control unit uses the condition that the operating time of the motor is lower than the predetermined time threshold during the tracing period from the detection time to the predetermined time length. The aforementioned motor starts. The recovery device according to claim 1 or 2, wherein the motor control unit activates the motor on the condition that the actuating frequency of the motor is lower than a predetermined frequency threshold during the tracing period traced back from the detection time for a predetermined length of time . A recovery device, which is configured to suck out the dust stored in the vacuum cleaner when the vacuum cleaner is connected, and the recovery device has: a connection detection unit to detect whether the aforementioned vacuum cleaner is connected to the aforementioned recycling device; A motor that generates a rotational drive force; The rotating blade part is rotated by the rotational driving force of the motor, thereby generating a suction force for attracting dust in the vacuum cleaner; and The motor control unit activates the motor when the connection detection unit detects the connection of the vacuum cleaner to the recovery device, and stops the motor when the connection detection unit detects that the vacuum cleaner is removed from the recovery device, The motor control unit is based on the condition that the time interval between the detection time when the connection detection unit detects the connection of the vacuum cleaner to the recovery device and the start time when the motor is activated before the detection time is higher than a predetermined interval threshold, When the connection detection unit detects the connection of the vacuum cleaner to the recovery device, the motor is activated. A recovery device, which is configured to suck out the dust stored in the vacuum cleaner when the vacuum cleaner is connected, and the recovery device has: a connection detection unit to detect whether the aforementioned vacuum cleaner is connected to the aforementioned recycling device; A motor that generates a rotational drive force; The rotating blade part is rotated by the rotational driving force of the motor, thereby generating a suction force for attracting dust in the vacuum cleaner; and The motor control unit activates the motor when the connection detection unit detects the connection of the vacuum cleaner to the recovery device, and stops the motor when the connection detection unit detects that the vacuum cleaner is removed from the recovery device, The motor control unit is based on the condition that the operating time of the motor is lower than a predetermined time threshold during a traced period from when the connection detection unit detects the connection of the vacuum cleaner to the recovery device by a predetermined time period. When the connection detection unit detects the connection of the vacuum cleaner to the recovery device, the motor is started. A recovery device, which is configured to suck out the dust stored in the vacuum cleaner when the vacuum cleaner is connected, and the recovery device has: a connection detection unit to detect whether the aforementioned vacuum cleaner is connected to the aforementioned recycling device; A motor that generates a rotational drive force; The rotating blade part is rotated by the rotational driving force of the motor, thereby generating a suction force for attracting dust in the vacuum cleaner; and The motor control unit activates the motor when the connection detection unit detects the connection of the vacuum cleaner to the recovery device, and stops the motor when the connection detection unit detects that the vacuum cleaner is removed from the recovery device, The motor control unit is based on the condition that the operating frequency of the motor is lower than a predetermined frequency threshold during the traced period from the time when the connection detection unit detects that the connection of the vacuum cleaner to the recovery device is traced back for a predetermined length of time. When the connection detection unit detects the connection of the vacuum cleaner to the recovery device, it activates the motor.

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