TW202247805A - Collecting device for collecting dust from vacuum cleaner - Google Patents

Abstract

A collecting device according to the present application comprises: a suction source that generates a suction force for sucking out dust inside a dust chamber; a connecting wall formed such that a vacuum cleaner is connectible thereto; a contacting part provided on the connecting wall so as to contact an outer surface of the vacuum cleaner body when the vacuum cleaner body is connected to the connecting wall; a contact detection unit configured to detect whether or not the vacuum cleaner is in contact with the contacting part; and a control unit configured to activate the suction source on the condition that the contact detection unit has detected a connection between the vacuum cleaner and the connecting wall. A collection port communicating with the dust chamber of the vacuum cleaner is formed in the connecting wall such that when the vacuum cleaner is connected to the connecting wall, dust sucked out from the dust chamber flows into the collection port due to the suction force generated by the suction source. The contacting part is provided at a position away from the collection port.

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. 11 . 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 . In addition, the rod-shaped gripping portion 340 is extended upward from the cleaner body 310 . The grip part 340 is configured to be gripped by the user, and is configured so that when the user grips the grip part 340 and moves the vacuum cleaner 300 forward, the suction nozzle 330 will move on the floor. A suction space for sucking dust is formed inside the suction nozzle 330 . 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 chamber 317 of the vacuum cleaner 300, a recovery device 400 shown in FIG. 12 is used. The recovery device 400 has a rectangular box-shaped casing 410 , and the vacuum cleaner 300 is held by the front wall 411 of the casing 410 . Inside the casing 410 is disposed: a suction source 420, which generates suction to suck out the dust in the dust storage chamber 317 of the vacuum cleaner 300; a recovery chamber 440, which accumulates dust recovered from the vacuum cleaner 300 by the suction of the suction source 420; And the 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. 13 , the collection cylinder part 431 is configured to fit into 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 portion 431 and the dust discharge cylinder portion 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 source 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 source 420 acts on the dust in the dust storage chamber 317 . 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.

Dust may remain in the transfer flow path 401 after the collection operation of collecting the dust from the cleaner 300 to the collection device 400 . If the vacuum cleaner 300 is removed from the recovery device 400 in this state, the fitting state of the dust discharge cylinder part 319 and the recovery cylinder part 431 will be released, so there is a possibility that the dust remaining in the transfer flow path 401 will adhere to the electrical contact. Points 402, 403 are in danger. In this case, malfunctions such as contact failures may occur.

An object of the present invention is to provide a recovery device configured to suppress malfunctions caused by dust.

The recovery device in the present disclosure is configured to recover dust in a dust storage chamber from a vacuum cleaner having a vacuum cleaner body provided with a dust storage chamber for storing dust. The recovery device has: a suction source, which generates the suction force for sucking out the dust in the dust storage chamber; a connecting wall, which is formed to be connected to the vacuum cleaner body; a contact part, which is arranged on the connecting wall, and is configured to contact with the outer surface of the vacuum cleaner body; the contact detection part is configured to detect whether the contact part has been in contact with the outer surface of the vacuum cleaner body; and the control part is configured to use the contact detection part to detect the contact between the vacuum cleaner body and the contact part as a condition , to activate the attraction source. A recovery port is formed on the connection wall, and the recovery port allows the dust in the dust storage chamber to flow in by the suction force of the suction source when the cleaner body is connected to the connection wall. The contact portion is located in the connecting wall at a position away from the recovery port.

The present invention can suppress malfunctions caused by dust.

The purpose, characteristics and advantages of the present invention will become more apparent 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.

(the overall structure of the vacuum cleaner) FIG. 1 is a schematic cross-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 is equipped with the nozzle cover 132 wider than the cleaner main body 110, and forms the 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. The upper side of the dust storage chamber 152 is provided with a fan chamber 153 communicating with the dust storage chamber 152, and a suction fan 116 is arranged in the fan chamber 153. The suction fan 116 generates a suction force for sucking up the dust on the floor surface, so that 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 .

(the overall structure of the 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 so that the vacuum cleaner 100 can be attached thereto. In detail, the recovery apparatus 200 is equipped with the housing|casing 210 and the base board 220, the housing 210 is attached to the front part, and the vacuum cleaner 100 is mounted in the rear part. 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 is electrically connected to the control unit 260 in the casing 210 and operates under the control of the control unit 260 . Specifically, the suction source 250 is configured to generate suction under the control of the control unit 260 to generate a recovery air flow for collecting dust in the dust storage chamber 152 of the vacuum cleaner 100 .

The casing 210 has: an upper part 212 that accommodates the dust flow path 230 and a recovery chamber 240 and is configured to be in contact with the cleaner body 110; and a lower part 211 that supports the upper part 212 at a predetermined height. 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 hole 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 includes the connecting wall 214 , the front wall 231 , the right wall 232 and the left wall 233 , and is erected to form a substantially rectangular inner space in a plane view. As shown in FIG. 4 , the upper wall portion 272 is configured to close a substantially rectangular internal space surrounded by the connection wall 214 , the front wall 231 , the right wall 232 , and the left wall 233 from above.

As shown in FIG. 5 , the connecting wall 214 forms the rear surface of the upper portion 212 and is configured to be connectable to the cleaner body 110 . The front wall 231 is erected on the front side of the connecting wall 214 . The right wall 232 is erected to connect the connecting wall 214 and the right edge of the front wall 231 . The left wall 233 is erected to connect the connecting wall 214 and the left edge of the front wall 231 . Intake ports 234 for allowing external air to flow into the upper portion 212 are formed at the corners formed by the front wall 231 and the right wall 232 and the corners formed by the front wall 231 and the left wall 233 . Also, as shown in FIG. 4 , an exhaust port 235 is formed below the intake port 234 . The exhaust port 235 is provided for exhausting the above-mentioned recovered airflow. The intake port 234 and the exhaust port 235 are composed of a plurality of small holes.

As shown in FIG. 5 , the connecting wall 214 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 .

As shown in FIG. 6 , a rectangular opening 236 is formed in the connecting wall 214 in the concave groove 215 . The opening 236 is provided to allow the external air flowing in from the air inlet 234 to flow out from the casing 210 .

The opening 236 is formed at a position where the vacuum cleaner 100 is placed on the pedestal plate 220 when the vacuum cleaner body 110 is in an upright position, and the front part of the vacuum cleaner body 110 is fitted into the groove 215, which is the same as that shown in FIG. 2 . The positions where the exhaust ports 151 overlap in the front-rear direction. That is, as shown in FIG. 4 , the opening 236 faces the exhaust port 151 of the vacuum cleaner 100 when the vacuum cleaner 100 is mounted on the recovery device 200 . The opening 236 has a wider opening area than the exhaust port 151 , and when the vacuum cleaner 100 is attached to the recovery device 200 , the entire exhaust port 151 overlaps the opening 236 .

A rectangular recovery port 216 is formed below the opening 236 . That is, the recovery port 216 and the opening portion 236 are formed in a line up and down in the groove portion 215 of the connection wall 214 . 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, it is the same as that 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.

A contact portion 280 that contacts the outer surface of the cleaner body 110 is provided at a position spaced upward from the opening portion 236 . The contact portion 280 is used to detect the connection state of the cleaner body 110 to the connection wall 214 , and is configured to contact the cleaner body 110 at two detection positions separated from each other in the vertical direction. Specifically, the contact portion 280 includes: conductive contact pieces 283 and 284 that contact the cleaner body 110 at one of the two detection positions; and a protruding piece 299 that contacts the cleaner body 110 at the other detection position.

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 protruding piece 299 is provided at a higher position than the contact pieces 283 and 284 so as to be able to move in and out with respect to the hole formed at the center position in the width direction of the groove portion 215 . The protruding piece 299 protrudes from the hole when the cleaner body 110 is not fitted into the groove 215 .

The detection circuit 290 for detecting the contact state of the contact pieces 283 , 284 and the protruding piece 299 to the cleaner body 110 is disposed in the casing 210 of the recovery device 200 . The detection circuit 290 is electrically connected to the control unit 260 and configured to output the detection result of the contact state of the contact pieces 283 , 284 and the protruding piece 299 to the cleaner body 110 to the control unit 260 . The detection circuit 290 will be further described in detail.

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 lower end of the dust flow path 230 constitutes the above-mentioned recovery port 216 , and the upper end of the dust flow path 230 is connected to the recovery chamber 240 . As mentioned above, since the recovery port 216 is opposite to the dust discharge port 124 of the vacuum cleaner 100 installed in the recovery device 200, when the cover 121 of the vacuum cleaner 100 opens the dust discharge port 124, the dust flow path 230 will be connected to the dust discharge port 124 and the dust discharge port 124. Dust storage room 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 .

The peripheral wall 241 of the recovery chamber 240 is erected inwardly from the peripheral wall portion 271 of the housing 210 , and a dust flow path 230 is extended in the space between the connecting wall 214 and the peripheral wall 241 of the housing 210 . In addition, the upper wall 248 of the recovery chamber 240 is provided at a position separated downward from the upper wall portion 272 of the housing 210 . Therefore, a space is formed around the recovery chamber 240 . As shown by arrows in FIGS. 4 and 5 , external air flows into the space through the air intake port 234 . In addition, the outside air that has flowed into this space flows out from the opening 236 . That is, the recovery chamber 240 and the casing 210 form an intake flow path 246 whose upstream end is the intake port 234 and whose downstream end is the opening 236 .

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. The suction source 250 shown in FIG. 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 suction source 250 is 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 . For example, the suction source 250 may also be composed of a fan and a motor.

(Structure of detection circuit) The detection circuit 290 includes the first detection circuit 201 shown in FIG. 8 and the second detection circuit 202 shown in FIG. 9 . The first detection circuit 201 is configured corresponding to the contact pieces 283 and 284 . The second detection circuit 202 is configured corresponding to the protruding piece 299 . The first detection circuit 201 and the second detection circuit 202 are provided with a contact detection unit 286 which detects the contact state of the contact pieces 283 , 284 and the protruding piece 299 to the cleaner body 110 . The contact detection unit 286 is electrically connected to the control unit 260 .

In the first detection circuit 201 , a power supply unit 285 is provided in addition to the contact detection unit 286 . The power supply unit 285 is electrically connected to the contact pieces 283 and 284 and is configured to generate a predetermined potential difference between the contact pieces 283 and 284 . For example, the power supply unit 285 can be configured by a converter that 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, a current conduction path 288 will be formed, and the aforementioned power supply 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 contact detection unit 286 is configured to detect the current flowing in the conduction path 288 and detect the resistance between the contact pieces 283 and 284 according to the detected current.

As shown in FIG. 9 , the second detection circuit 202 includes a conductive switch piece 294 and a battery 295 , and the switch piece 294 is attached to the protruding piece 299 so as to be displaced together with the protruding piece 299 . The switch piece 294 is elastically supported by a potential energy imparting portion 292 (such as a spring), and the potential energy imparting portion 292 imparts potential energy to the switch piece 294 and the protruding piece 299 in a direction in which the protruding piece 299 protrudes from the hole. . When the cleaner body 110 is not inserted into the groove portion 215 , the switch piece 294 turns the second detection circuit 202 into an open state through the potential energy imparting portion 292 . On the other hand, when the protruding piece 299 is pressed by the cleaner body 110 fitted into the concave groove 215 and sinks into the hole, the switch piece 294 turns off the second detection circuit 202 . When the second detection circuit 202 is closed by the switch plate 294 , the current will flow from the battery 295 to the second detection circuit 202 .

The contact detection unit 286 is configured to detect not only the current flowing through the conduction path 288 shown in FIG. 8 but also the current flowing through the second detection circuit 202 . That is, the contact detection unit 286 detects that the contact pieces 283 , 284 and the protruding piece 299 are in contact with the outer surface of the cleaner body 110 by detecting the current flowing through the energization path 288 and the second detection circuit 202 .

The contact detection unit 286 may also be constituted by an ammeter and a signal output circuit on the side of the second detection circuit 202. The aforesaid ammeter detects the current flowing in the second detection circuit 202. When the current detected by the meter exceeds a predetermined value (current threshold), a detection signal is output. In addition, the above-mentioned current threshold value is set to ensure that the protruding piece 299 is immersed in the hole and the switch piece 294 has a size to close the second detection circuit 202 . Moreover, the contact detection unit 286 may also be constituted by an ammeter and an operation circuit on the side of the first detection circuit 201. The aforesaid ammeter detects the current flowing in the energization path 288, and the aforesaid operation circuit is based on the detected current. To calculate the resistance between the contact pieces 283,284. The arithmetic circuit can also be configured to output a detection signal indicating that the contact pieces 283, 284 are in contact with the electrical contacts 171, 172 of the cleaner body 110 when the obtained resistance is lower than a predetermined value (resistance threshold). In addition, the above-mentioned resistance threshold is set to a size that can ensure that the contact pieces 283 , 284 are in contact with the electric contacts 171 , 172 of the cleaner body 110 . If detection signals are output from both the arithmetic circuit on the side of the first detection circuit 201 and the signal output circuit on the side of the second detection circuit 202, the vacuum cleaner 100 will be connected to the recovery device 200 with the posture of the vacuum cleaner body 110 along the connection wall 214. state.

The control unit 260 is configured to operate the suction source 250 on the condition that the calculation circuit on the first detection circuit 201 side and the signal output circuit on the second detection circuit 202 side receive detection signals. Therefore, if the contact detection unit 286 does not receive a detection signal from at least one of the arithmetic circuit on the first detection circuit 201 side and the signal output circuit on the second detection circuit 202 side, the control unit 260 does not activate the suction source 250 . Also, during the operation of the suction source 250, if at least one of the arithmetic circuit on the side of the first detection circuit 201 and the signal output circuit on the side of the second detection circuit 202 stops the output of the detection signal when the contact detection unit 286 stops, the control unit 260 will will cause the attraction source 250 to stop.

In order to keep the contact state of the contact piece 283,284 and the protrusion piece 299 with respect to the cleaner main body 110, as shown in FIG. 6, the holding part 297 is provided. 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 portion 297 and the magnetic plate 173 serves as a holding force for holding the contact state of the contact pieces 283 , 284 and the protruding piece 299 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 .

Both the holding portion 297 and the protruding piece 299 are arranged at the center in the width direction of the groove portion 215 , and the holding portion 297 is provided on the lower side of the protruding piece 299 . In other words, the holding portion 297 and the protruding piece 299 are arranged vertically at the center position in the width direction of the groove portion 215 . In order to make the attractive force generated between the holding part 297 and the magnetic plate 173 act on the protruding piece 299 and the contact pieces 283, 284 approximately equally, the distance between the protruding piece 299 and the holding part 297 is set to be equal to that of the contact pieces 283, 284. The distances between each of them and the holding portion 297 are substantially equal.

The holding portion 297 is configured to attract the magnetic plate 173 with a force greater than the potential energy imparting force acting on the contact pieces 283, 284 and the protruding piece 299 (the force acting in the direction in which these protrude from the hole). .

(Explanation of the action of the vacuum cleaner at the time of 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, since the suction force of the suction fan 116 disappears, 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 .

(Explanation of the 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 . 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 cleaner body 110 in the upright position 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 addition, the fan chamber 153 of the vacuum cleaner 100 communicates with the suction flow path 246 of the recovery device 200 through the exhaust port 151 . In this state, the contact pieces 283 , 284 and the protruding piece 299 of the recovery device 200 are pushed forward by the cleaner body 110 , and the contact pieces 283 , 284 and the protruding piece 299 have been submerged in the holes of the connecting 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 . In this case, the contact detection unit 286 configured on the side of the first detection circuit 201 detects a resistance lower than the resistance threshold value between the contact pieces 283 and 284 . Also, the second detection circuit 202 shown in FIG. 9 is closed by sinking the protruding piece 299 into the hole. As a result, the contact detection unit 286 configured on the side of the second detection circuit 202 detects in the second detection circuit 202 a current having a magnitude exceeding the above-mentioned current threshold value. As a result, detection signals can be output from both the arithmetic circuit of the contact detection unit 286 formed on the first detection circuit 201 side and the signal output circuit of the contact detection unit 286 formed on the second detection circuit 202 side. After the control unit 260 receives the detection signals, the control unit 260 will activate the suction source 250 for a predetermined period.

When the suction source 250 operates, the suction force of the suction source 250 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 receives the suction force of 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 rotates downward, the dust discharge port 124 is opened, and the dust flow path 230 is in a state of communicating with the dust storage chamber 152 , the fan chamber 153 and the suction flow path 246 . Therefore, the suction force of the suction source 250 acts on the suction port 234 of the suction flow path 246 through the recovery chamber 240 , the dust flow path 230 , the dust storage chamber 152 , the fan chamber 153 , and the suction flow path 246 . As a result, as shown by the arrows in FIGS. 4 and 5 , outside air flows into the intake flow path 246 through the intake port 234 , and the recovery from the intake port 234 toward the opening 236 occurs in the intake flow path 246 . airflow. The recycled air flow passes through the opening 236 and the exhaust port 151 in sequence, and flows into the fan chamber 153 and the dust storage chamber 152 of the vacuum cleaner 100 in sequence. When the recycled air flow passes through the dust storage chamber 152 , the dust in the dust storage chamber 152 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 along the recovery airflow. In the recovery chamber 240 , the dust is captured by the dust filter 247 and stored in the recovery room 240 . On the other hand, the recycled air passes through the dust filter 247 . Afterwards, the recycled gas flow is exhausted through the exhaust port 235 .

In the above-described embodiment, as shown in FIG. 6 , the contact portion 280 is provided in the connection wall 214 at a position away from the recovery port 216 toward the upper side. Therefore, even if the dust falls from the recovery port 216 when the vacuum cleaner 100 is removed from the recovery device 200 after collecting the dust from the cleaner 100 to the recovery device 200 , the dust does not adhere to the contact part 280 . Therefore, dust is unlikely to interfere with the electrical connection between the contact pieces 283 , 284 of the recovery device 200 and the electrical contacts 171 , 172 of the vacuum cleaner 100 , or prevent the protruding piece 299 from sinking into the hole. That is, the contact detection part 286 can detect whether the vacuum cleaner 100 has been connected to the recovery device 200 without being obstructed by dust.

In the above embodiment, the cleaner body 110 is fitted into the groove portion 215 of the recovery device 200 . When the cleaner body 110 fits into the groove portion 215 , the cleaner body 110 will be positioned in the width direction of the groove portion 215 . At this time, the cleaner body 110 is attracted to the connecting wall 214 by the magnetic force of the holding part 297 and is also positioned in the depth direction (front-rear direction) of the groove part 215 . Therefore, the position of the cleaner main body 110 in the groove part 215 becomes hard to change. Even if vibration occurs due to the operation of the suction source 250 , the contact state of the cleaner body 110 with the contact pieces 283 , 284 and the protruding piece 299 provided in the groove portion 215 becomes difficult to change. Therefore, the contact detection unit 286 can detect whether the vacuum cleaner 100 is connected to the recovery device 200 without being affected by a disturbance factor such as vibration caused by the operation of the suction source 250 .

If the cleaner body 110 takes a posture along the connecting wall 214 in the groove portion 215, the groove portion 215 has a shape complementary to the front portion of the cleaner body 110, so it will be in contact with the cleaner body 110 as a whole. In this state, as shown in FIG. 7 , the connection wall 214 is adjacent to the cleaner body 110 around the recovery port 216 , and there is no space between the connection wall 214 and the cleaner body 110 that allows dust to scatter. However, it is also conceivable that the vacuum cleaner 100 is attached to the collection device 200 in a posture in which the vacuum cleaner body 110 is inclined with respect to the connection wall 214 . For example, as shown in FIG. 10 , the vacuum cleaner body 110 may be installed in a forward-inclined posture with respect to the connecting wall 214 . Conversely, the vacuum cleaner main body 110 may be installed in a backward tilted posture with respect to the connecting wall 214 . In these cases, a space for the flying particles flowing from the cleaner 100 toward the recovery device 200 to fall may be created between the connecting wall 214 and the cleaner body 110 .

In order to prevent the suction source 250 from operating in a state where a space is formed between the connecting wall 214 and the cleaner body 110, the contact pieces 283, 284 and the protruding piece 299 are provided at positions different from each other in the height direction. That is, by setting the contact pieces 283, 284 and the protruding pieces 299 at height positions different from each other, it will be possible to detect whether the cleaner body 110 is in a posture along the connection wall 214 in the groove portion 215 or is positioned relative to the connection wall 214. The posture in which the wall 214 is inclined.

If the vacuum cleaner body 110 is in a posture along the connecting wall 214 in the groove portion 215, the vacuum cleaner body 110 will be in a state of being in contact with the contact pieces 283, 284 and the protruding piece 299. The attraction source 250 is actuated. On the other hand, as shown in FIG. 10 , if the vacuum cleaner body 110 adopts a forward leaning posture relative to the connecting wall 214, it is possible that the protruding piece 299 has sunk into the hole, but on the other hand the contact piece 283, 284 has not been in contact with the hole. The state of the electrical contacts 171 and 172 of the cleaner body 110 . On the contrary, if the vacuum cleaner body 110 adopts a backward posture relative to the connecting wall 214, it is possible that the contact pieces 283, 284 have been in contact with the electrical contacts 171, 172 of the vacuum cleaner body 110, but the protruding piece 299 has not yet disappeared. The state of the hole. When such a state occurs, one of the arithmetic circuit of the contact detection unit 286 formed on the first detection circuit 201 side and the signal output circuit of the contact detection unit 286 formed on the second detection circuit 202 side does not output detection signal. Therefore, the control unit 260 does not activate the suction source 250 .

In addition, when the cleaner body 110 is fitted into the groove portion 215 while being inclined backward relative to the suction nozzle 130 , the cleaner body 110 can be tilted forward relative to the suction nozzle 130 by the magnetic force of the holding portion 297 . If the vacuum cleaner body 110 becomes in a posture along the connecting wall 214 by this tilting forward, the detection signal of the contact detection part 286 will indicate that the current is detected in both the first detection circuit 201 and the second detection circuit 202. . In this case, the control unit 260 activates the suction source 250 in response to the detection signal. That is, the holding portion 297 not only stabilizes the contact state of the contact pieces 283, 284 and the protruding piece 299 with the cleaner body 110, but also functions to correct the backward posture of the cleaner body 110 to a posture along the connecting wall 214. .

In the above embodiment, the contact between the contact pieces 283 and 284 and the cleaner body 110 is detected by a method different from the detection method for the contact between the protruding piece 299 and the cleaner body 110 . Thereby, even if objects other than the cleaner main body 110 come into contact with the contact portion 280 , the control portion 260 will not activate the suction source 250 . For example, even if the user's body touches the protruding piece 299 and the protruding piece 299 sinks into the hole, no current will flow in the first detection circuit 201 provided corresponding to the contact pieces 283, 284, thereby detecting a resistance exceeding the above-mentioned resistance. threshold resistance. Also, when a conductor other than the vacuum cleaner 100 is in contact with the contact pieces 283, 284, although a current will flow in the first detection circuit 201, as long as the conductor does not press the protruding piece 299, the corresponding protruding piece 299 is provided. No current flows in the second detection circuit 202 . Therefore, it is difficult for objects other than the vacuum cleaner 100 to contact the contact portion 280 and cause the suction source 250 to operate erroneously.

Various changes can be made to the above-mentioned embodiment.

For example, in the above-described embodiment, the contact detection unit 286 detects that the protruding piece 299 has entered the hole by detecting the current flowing in the second detection circuit 202 . Alternatively, the contact detection unit 286 may be configured to detect the sinking of the protruding piece 299 by optically detecting the displacement of the protruding piece 299 .

In addition, in the above-mentioned embodiment, the contact pieces 283 and 284 can be changed from the state protruding from the connection wall 214 in the groove portion 215 to the state submerged in the hole portion. In this case, it becomes easy to maintain the contact state of the contact pieces 283 , 284 and the electrical contacts 171 , 172 . Moreover, when it is necessary to detect the contact state of the cleaner main body 110 with respect to the connection wall 214 with high precision, the contact piece 283,284 does not need to be the state which protruded from the connection wall 214. For example, the contact pieces 283 and 284 can also be conductive plates attached to the outer surface of the connecting wall 214 in the groove portion 215 .

Moreover, in the above-mentioned embodiment, the contact part 280 has the contact pieces 283 and 284 and the protruding piece 299 . Alternatively, the contact portion 280 may be composed of only the contact pieces 283 and 284 , or may be composed of only the protruding piece 299 . In such cases, the detection circuit 290 can be simplified.

In addition, in the above-mentioned embodiment, the holding portion 297 is constituted by a magnet plate. Alternatively, the holding portion 297 may also be formed of a magnetic plate. In this case, a magnet plate is provided on the side of the cleaner main body 110, and a magnetic attraction force is generated between the magnetic plate and the magnetic plate. Alternatively, the holding portion 297 can also be formed by a Velcro tape. In this case, the hook and loop tape is also provided on the side of the cleaner body 110, and the contact state of the contact pieces 283, 284 and the protruding piece 299 to the cleaner body 110 is stabilized by the adhesive force between these hook and loop fasteners. . In addition, as long as the groove portion 215 of the recovery device 200 is formed to maintain the connection state of the cleaner body 110 to the connection wall 214 of the recovery device 200 , the holding part 297 may not be provided.

In the above embodiment, the groove portion 215 is provided for positioning the cleaner body 110 on the connecting wall 214 of the recovery device 200 . Alternatively, the positioning of the recovery device 200 by the vacuum cleaner 100 can also be performed in other parts. For example, the suction nozzle 130 of the vacuum cleaner 100 may be positioned by the pedestal plate 220 . In this case, the groove portion 215 may not be provided in the recovery device 200 .

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

The recovery device according to one aspect of the above-mentioned embodiment is configured to recover dust in a dust storage chamber from a vacuum cleaner having a vacuum cleaner body provided with a dust storage chamber for storing the dust. The recovery device has: a suction source, which generates the suction force for sucking out the dust in the dust storage chamber; a connecting wall, which is formed to be connected to the vacuum cleaner body; a contact part, which is arranged on the connecting wall, and is configured to contact with the outer surface of the vacuum cleaner body; the contact detection part is configured to detect whether the contact part has been in contact with the outer surface of the vacuum cleaner body; and the control part is configured to use the contact detection part to detect the contact between the vacuum cleaner body and the contact part as a condition , to activate the attraction source. A recovery port is formed on the connection wall, and the recovery port allows the dust in the dust storage chamber to flow in by the suction force of the suction source when the cleaner body is connected to the connection wall. The contact portion is located in the connecting wall at a position away from the recovery port.

In the above configuration, when the suction source of the recovery device is activated, the dust will flow from the dust storage chamber of the vacuum cleaner body into the recovery port by the suction force of the suction source and be recovered to the recovery device. Even if the cleaner body is removed from the recovery device after the dust is recovered toward the recovery device, since the contact part is provided at a position away from the recovery port, it is difficult for the dust to adhere to the contact part. Therefore, the contact detection part can detect whether the contact part is in contact with the cleaner body without being affected by the dust, thereby suppressing malfunction of the recovery device caused by dust.

In the above configuration, the contact portion may be disposed above the recovery port.

In the above configuration, when dust falls from the recovery port, the dust adheres to the lower part of the recovery port in the connection wall. On the other hand, since the contact part is provided above the recovery port, it is difficult for dust to adhere to the contact part.

In the above configuration, the connection wall may be configured to be adjacent to the cleaner body around the recovery port when the cleaner body is connected to the connection wall in a posture along the connection wall. The contact detection unit may be configured to detect whether or not the cleaner body is in a posture along the connection wall. The control unit may be configured to activate the suction source on the condition that the contact detection unit detects that the cleaner body is in a posture along the connection wall.

In the above configuration, when the cleaner body is connected to the connection wall, if the cleaner body does not take a posture along the connection wall, the connection wall may be in a state away from the cleaner body around the recovery port. On the other hand, if the cleaner body is in a posture along the connection wall, the connection wall will be adjacent to the cleaner body around the recovery port. Therefore, the contact detection unit is configured to be able to detect whether or not the cleaner body is in a posture along the connection wall. When the contact detection unit detects that the cleaner body is in a posture along the connection wall, the control unit activates the suction source. As a result, in a state where the cleaner body is adjacent to the connecting wall around the recovery port, the dust can flow from the dust storage of the cleaner body toward the recovery port and be recovered to the recovery device. Conversely, if the contact detection unit does not detect that the cleaner body is in a posture along the connection wall with respect to the connection wall, the control unit does not activate the suction source. Therefore, it is possible to prevent dust from being collected in a state where there is a space around the recovery port between the cleaner body and the connection wall.

In the above configuration, the connection wall may be configured to be adjacent to the cleaner body around the recovery port when the cleaner body is connected to the connection wall in a posture along the connection wall. The contact portion may be configured to contact the outer surface of the cleaner body at two detection positions separated from each other when the cleaner body is connected to the connection wall in a posture along the connection wall. The contact detection part may also be configured to detect whether the contact part has contacted the outer surface of the vacuum cleaner body at two detection positions. The control unit may be configured to activate the suction source on the condition that the contact detection unit detects that the contact unit has come into contact with the outer surface of the cleaner body at two detection positions.

In the above configuration, at least one of the two detection positions, if the contact portion is not in contact with the outer surface of the cleaner body, the cleaner body does not take a posture along the connection wall. For example, it is conceivable that when the contact portion contacts the outer surface of the cleaner body at only one of the two detection positions, the cleaner body assumes an inclined posture with respect to the connection wall. When the cleaner body is in an inclined posture with respect to the connection wall, the cleaner body may be separated from the recovery port of the recovery device. In this state, since the control unit does not activate the suction source, dust can be prevented from falling into the space between the cleaner body and the recovery device.

In the above configuration, the vacuum cleaner body may also have: a pair of electrical contacts arranged on the outer surface of the vacuum cleaner body so as to be in contact with the recovery device; current path. The contact part may also include: a pair of conductive contact pieces, which are arranged to be in contact with a pair of electrical contacts respectively at one of the two detection positions, and when not in contact with a pair of electrical contacts , to be insulated from each other; and the protruding piece is configured to be able to come and go in and out of the hole provided on the connection wall at the other detection position among the two detection positions, and is given in the direction protruding from the hole. potential energy. The recovery device may further include: a power supply unit that generates a potential difference between a pair of conductive contact pieces. The contact detection unit may be configured to detect the magnitude of the resistance between a pair of conductive contact pieces and whether or not the protruding piece has entered the hole. The control unit is configured to activate the suction source on the condition that the contact detection unit detects that the resistance between the pair of conductive contact pieces has fallen below a predetermined value and that the protruding piece has sunk into the hole.

In the above configuration, if the contact portion of the recovery device contacts the outer surface of the vacuum cleaner body at one of the two detection positions, and a pair of contact pieces contacts a pair of electrical contacts, the current will pass through the circuit The current path formed by the part flows between a pair of contact pieces. In this case, the contact detection section may detect a resistance lower than a predetermined value. In contrast, if the pair of contact pieces and the pair of electrical contacts are not in contact, the resistance between the pair of contact pieces will exceed a predetermined value. Therefore, the contact detection part can detect whether the main body of the vacuum cleaner is in contact with the recovery device at one detection position by detecting the resistance between the pair of contact pieces. On the other hand, when the protruding piece at the other detection position of the two detection positions has contacted the outer surface of the vacuum cleaner body, it can be detected by the contact detection part that the protruding piece has sunk into the hole formed in the connecting wall. situation to detect. In this way, by detecting the contact state of the recovery device and the cleaner body in different ways, erroneous operation of the suction source can be suppressed as follows.

For example, if an electrical conductor other than the vacuum cleaner contacts the pair of contact pieces, the resistance between the pair of contact pieces will be lower than a predetermined value. At this time, if the conductor does not sink the protruding piece into the hole, the contact detection unit will not detect the immersion of the protruding piece into the hole, and the control unit will not activate the suction source. Also, even if an object other than a cleaner sinks the protruding piece into the hole, as long as the object is conductive and does not contact both of the pair of contact pieces, the control unit will not activate the suction source. Therefore, even if objects other than the vacuum cleaner come into contact with the recovery device, it is possible to suppress the erroneous operation of the suction source.

In the above configuration, the contact portion may be configured to be able to move in and out with respect to the hole portion provided in the connecting wall. The recovery device may further include a potential energy imparting portion that imparts potential energy in a direction in which the contact portion protrudes from the hole. The contact detection part can also be configured to detect that the outer surface of the cleaner body has contacted the connecting wall through the contact part being pressed by the cleaner body and sinking into the hole. The control unit may be configured to actuate the suction source on the condition that the contact detection unit detects that the outer surface of the cleaner body is in contact with the connecting wall.

In the above configuration, the control unit does not actuate the suction source unless the cleaner body is connected to the connecting wall with such force as to resist the potential energy imparting unit and sink the contact portion into the hole. Therefore, for example, even if the user's body rubs against the contact portion unexpectedly, the control unit does not activate the suction source unless the contact portion sinks into the hole. On the other hand, if the user presses the cleaner body against the contact part to sink the contact part into the hole, the contact detection part will detect the sinking of the contact part into the hole, and the control part will activate the suction source. Therefore, as long as the user intentionally connects the main body of the vacuum cleaner to the recovery device, the dust recovery from the vacuum cleaner to the recovery device will be performed.

In the above configuration, the vacuum cleaner body may also have: a pair of electrical contacts arranged to be in contact with the recovery device; and a circuit part forming a current path for current to flow between the pair of electrical contacts. The contact portion may also include a pair of conductive contact pieces provided so as to be in contact with a pair of electrical contacts, and to be insulated from each other when they are not in contact with the pair of electrical contacts. The recovery device may further include: a power supply unit that generates a potential difference between a pair of conductive contact pieces. The contact detection unit may be configured to detect the magnitude of resistance between a pair of conductive contact pieces. The control unit may be configured to activate the suction source on the condition that the contact detection unit detects that the resistance between the pair of conductive contact pieces has fallen below a predetermined value.

In the said structure, a pair of contact piece will be in the state insulated from each other in the state which is not in contact with a pair of electric contact of a vacuum cleaner main body. Therefore, even if the power supply unit generates a potential difference between the pair of contact pieces, the contact detection unit does not detect an electric current, and the control unit does not activate the suction source. On the other hand, as long as the vacuum cleaner body is connected to the recovery device and the pair of contact pieces have been in contact with the pair of electrical contacts of the vacuum cleaner body, the electric current will flow through the circuit part of the vacuum cleaner due to the potential difference generated by the power supply part. Flow between a pair of contact pieces. In this state, the resistance detected between the pair of contact pads will be lower than a predetermined value. When the contact detection unit detects a resistance lower than a predetermined value, the control unit activates the suction source.

In the above configuration, a groove portion may also be provided on the connecting wall, and the groove portion is provided with a contact portion and can be inserted into the main body of the vacuum cleaner. The groove portion can also be formed to position the cleaner body.

In the above structure, since the contact portion is provided in the groove portion, the cleaner body will contact the contact portion as long as the cleaner body is inserted into the groove portion. Since the groove portion is formed to position the cleaner body, the contact detection portion can detect contact of the contact portion with the cleaner body in a state where the cleaner body has been positioned. Therefore, the detection accuracy of the contact detection part on the contact part with the cleaner body can be improved.

In the above configuration, the recovery device may further include: a holding portion configured to generate a holding force for maintaining the connected state in which the cleaner body is connected to the connecting wall.

In the above configuration, the connection state between the cleaner body and the connection wall is maintained by the holding force of the holding portion. Therefore, even if vibration occurs due to the operation of the suction source, it becomes difficult to separate the cleaner body from the connection wall due to the vibration. Therefore, the contact detection part can continuously detect the contact state of the contact part with the cleaner body. In addition, the control unit may continuously operate the suction source while the contact detection unit detects the contact state of the contact unit and the cleaner body.

In the above configuration, the holding portion may also be configured to magnetically attract the cleaner body.

In the above configuration, since the holding part is configured to magnetically attract the vacuum cleaner body, even if the vacuum cleaner body is installed on the recovery device in a state away from the connecting wall, it can still be magnetically attracted by the holding part and become in a state of being in contact with the connecting wall. .

Industrial availability The recovery device of the above-mentioned embodiment is suitably utilized as a device 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 department 116: Attract fans 117,295: batteries 121: cover body 124: Dust outlet 130,330: suction nozzle 131: Inhalation space 132: nozzle cover 133: scraping brush 134: bottom 140,340: control department 141: Operation Department 151,235: 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 201: The first detection circuit 202: The second detection circuit 211: lower part 212: upper part 213:Accommodating space 214: connecting wall 215: concave groove 216: Recovery port 220: Pedestal plate 230,430: dust flow path 231,411: front wall 232: right wall 233: left wall 234: suction port 236: Opening 240,440: Recovery Room 241: Zhoubi 245: bottom wall 246: suction flow path 247: Dust filter 248: upper wall 250,420: Source of Attraction 260: control department 271: Peripheral wall 272: upper wall 280: contact part 283,284: contact piece 285: Power supply department 286: Contact detection department 287: External power supply 288: Power path 290: detection circuit 292: Empowering Potential Energy Department 294: switch piece 297: Maintenance Department 299: protruding piece 312: Vacuum source 313: filter 319: Dust exhaust cylinder 401: transfer flow path 431: Recycling cylinder A: arrow

Fig. 1 is a schematic cross-sectional view of a vacuum cleaner. Fig. 2 is a front view of the vacuum cleaner. Fig. 3 is a cross-sectional view of the vacuum cleaner around the dust storage room. 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 of the vacuum cleaner around the dust storage room. Fig. 8 is a schematic functional configuration diagram of a detection circuit provided in the recovery device. Fig. 9 is a schematic functional configuration diagram of a detection circuit provided in the recovery device. Fig. 10 is a cross-sectional view of the vacuum cleaner around the dust storage room. Fig. 11 is a schematic cross-sectional view of a conventional vacuum cleaner. Fig. 12 is a schematic perspective view of a conventional recovery device. Fig. 13 is a schematic perspective view of a connection portion between a conventional vacuum cleaner and a recovery device.

200: Recovery device

210: Shell

211: lower part

212: upper part

213:Accommodating space

214: connecting wall

215: concave groove

216: Recovery port

220: Pedestal plate

230: dust flow path

232: right wall

233: left wall

236: Opening

246: suction flow path

271: Peripheral wall

272: upper wall

280: contact part

283,284: contact piece

290: detection circuit

297: Maintenance Department

299: protruding piece

Claims (10)

A recovery device for recovering dust in a dust storage chamber from a vacuum cleaner having a vacuum cleaner body. The vacuum cleaner body is equipped with the dust storage room for storing dust. The recovery device has: The source of attraction generates the attraction force for sucking out the dust in the aforementioned dust storage chamber; a connecting wall formed to be connectable to the aforementioned vacuum cleaner body; The contact part is arranged on the aforementioned connecting wall, and is configured to contact the outer surface of the aforementioned vacuum cleaner body when the aforementioned vacuum cleaner body is connected to the aforementioned connecting wall; a contact detection unit configured to detect whether the contact unit has been in contact with the outer surface of the vacuum cleaner body; and The control unit is configured to actuate the suction source on the condition that the contact detection unit detects the contact between the cleaner body and the contact unit, A recovery port is formed on the connection wall, and the recovery port allows the dust in the dust storage chamber to flow in through the suction force of the suction source when the vacuum cleaner body is connected to the connection wall. The contact portion is provided in the connection wall at a position away from the recovery port. The recovery device according to claim 1, wherein the contact part is arranged on the upper side of the recovery port. The recovery device according to claim 1 or 2, wherein the connecting wall is configured to be adjacent to the vacuum cleaner body around the recovery port when the vacuum cleaner body is connected to the connecting wall in a posture along the connecting wall, The contact detection unit is configured to detect whether the cleaner body is in a posture along the connection wall, The control unit is configured to activate the suction source on the condition that the contact detection unit detects that the cleaner body is in a posture along the connection wall. The recovery device according to claim 1 or 2, wherein the connecting wall is configured to be adjacent to the vacuum cleaner body around the recovery port when the vacuum cleaner body is connected to the connecting wall in a posture along the connecting wall, The contact portion is configured to contact the outer surface of the cleaner body at two detection positions separated from each other when the cleaner body is connected to the connection wall in a posture along the connection wall, The contact detection part is configured to detect whether the contact part has contacted the outer surface of the vacuum cleaner body at the two detection positions, The control unit is configured to activate the suction source on the condition that the contact detection unit detects that the contact unit is in contact with the outer surface of the cleaner body at the two detection positions. As the recycling device of claim 4, wherein the aforementioned vacuum cleaner body has: A pair of electrical contacts are arranged on the aforementioned outer surface of the aforementioned vacuum cleaner body in such a manner as to be in contact with the aforementioned recovery device; and a circuit portion forming a current path for supplying current to flow between the aforementioned pair of electrical contacts, The aforementioned contact portion includes: A pair of conductive contact pieces are arranged so as to be in contact with the aforementioned pair of electrical contacts respectively at one of the aforementioned 2 detecting positions, and to be mutually contacted when not in contact with the aforementioned pair of electrical contacts. the state of the insulation; and The protruding piece is configured to move in and out relative to the hole provided in the connection wall at the other detection position of the two detection positions, and is provided with potential energy in a direction protruding from the hole, The aforesaid recycling device is further equipped with: The power supply part generates a potential difference between the aforementioned pair of conductive contact pieces, The contact detection unit is configured to detect the magnitude of the resistance between the pair of conductive contact pieces and whether the protruding piece is submerged in the hole, The control unit is configured to use the contact detection unit to detect that the resistance between the pair of conductive contact pieces has fallen below a predetermined value and that the protruding piece has sunk into the hole. The aforementioned attraction source operates. The recovery device according to claim 1 or 2, wherein the aforementioned contact portion is configured to be able to come in and out relative to the hole portion provided on the aforementioned connecting wall, The aforesaid recycling device is further equipped with: a potential energy imparting portion that imparts potential energy in a direction in which the contact portion protrudes from the hole portion, The contact detection part is configured to detect that the outer surface of the vacuum cleaner body is in contact with the connecting wall through the contact part being pressed by the vacuum cleaner body and sinking into the hole, The control unit is configured to actuate the suction source on the condition that the contact detection unit detects that the outer surface of the cleaner body is in contact with the connection wall. The recovery device according to claim 1 or 2, wherein the aforementioned vacuum cleaner body has: A pair of electrical contacts arranged to be in contact with the aforementioned recovery device; and a circuit portion forming a current path for supplying current to flow between the aforementioned pair of electrical contacts, The aforementioned contact portion includes: A pair of conductive contact pieces are provided so as to be in contact with each of the aforementioned pair of electrical contacts, and to be insulated from each other when they are not in contact with the aforementioned pair of electrical contacts, The aforesaid recycling device is further equipped with: The power supply part generates a potential difference between the aforementioned pair of conductive contact pieces, The contact detection unit is configured to detect the magnitude of the resistance between the pair of conductive contact pieces, The control unit is configured to activate the suction source on the condition that the contact detection unit detects that the resistance between the pair of conductive contact pieces has fallen below a predetermined value. The recovery device according to claim 1 or 2, wherein a groove portion is provided on the connecting wall, the groove portion is provided with the contact portion, and can be inserted into the vacuum cleaner body, The groove portion is formed to position the cleaner body. As for the recovery device of claim 1 or 2, it further has: The holding part is configured to generate a holding force for maintaining the connected state in which the cleaner body is connected to the connecting wall. The recovery device according to claim 9, wherein the holding part is configured to magnetically attract the main body of the vacuum cleaner.

Images