CN118076275A - Recovery device for recovering dust from dust collector and dust collector connected with recovery device - Google Patents

Recovery device for recovering dust from dust collector and dust collector connected with recovery device Download PDF

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Publication number
CN118076275A
CN118076275A CN202280067831.3A CN202280067831A CN118076275A CN 118076275 A CN118076275 A CN 118076275A CN 202280067831 A CN202280067831 A CN 202280067831A CN 118076275 A CN118076275 A CN 118076275A
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CN
China
Prior art keywords
dust
cleaner
state
recovery device
current path
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202280067831.3A
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Chinese (zh)
Inventor
守屋浩史
妹尾裕之
小泉仁世
田端亚南
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Publication of CN118076275A publication Critical patent/CN118076275A/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/24—Hand-supported suction cleaners
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/02—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids with driven tools for special purposes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Electric Suction Cleaners (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Abstract

The recovery device (200) is configured to: dust is collected from the dust storage chamber 152 in a state where the cleaner 100 is connected. The collection device (200) includes a dust collection fan (250) that generates a suction force that sucks out dust, a control unit (260) that causes the dust collection fan (250) to operate, and a power cable (262). When the cleaner (100) is connected to the recovery device (200) while power is supplied to the control unit (260), the control unit (260) operates the dust collection fan (250); when the power supply to the control unit (260) is started in a state where the cleaner (100) is connected to the collection device (200), the control unit (260) maintains the stopped state of the dust collection fan (250).

Description

Recovery device for recovering dust from dust collector and dust collector connected with recovery device
Technical Field
The present invention relates to a recovery device for recovering dust from a dust collector and a dust collector connected to the recovery device.
Background
Patent document 1 discloses a stick cleaner 300 shown in fig. 9. The cleaner 300 includes a cleaner body 310, a suction pipe 320 extending downward from the cleaner body 310, and a suction nozzle 330 connected to a lower end of the suction pipe 390. 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 frame 311. The housing 311 includes a fan chamber 315 that houses a dust suction source 312 that generates a suction force for sucking dust, and a dust storage chamber 317 that is partitioned from the fan chamber 315 by a filter 313 and stores dust captured by the filter 313. The housing 311 is formed with a dust discharge port 319 for discharging dust accumulated in the dust reservoir 317.
In patent document 1, a recovery device 400 shown in fig. 10 is used to recover dust stored in a dust storage chamber 317 of a dust collector 300. The collecting device 400 includes a housing 410, a suction fan 420 that generates a suction force, a power supply circuit 414 that drives the suction fan 420, a dust collection chamber 440 that collects dust from the cleaner 300, and a dust flow path 430 that extends from the dust collection chamber 440. The distal end of the dust flow path 430 is formed to be connectable with the dust discharge port 319 of the dust collector 300. A connection piece 431 for turning on/off the power supply circuit 414 is provided at a distal end of the dust flow path 430, and when the connection piece 431 is in contact with the dust discharge port 319, the power supply circuit 414 drives the dust suction fan 420, and when the dust suction fan 420 is driven, the suction force of the dust suction fan 420 acts on dust in the dust storage chamber 317 through the dust flow path 430, and the dust is sucked from the dust storage chamber 317 to the dust collection chamber 440.
When a user wishes to collect dust by the collection device 400, the dust collector 300 is generally connected to the collection device 400 in a state where the power cable of the collection device 400 is connected to an external power source. That is, the user connects the power cable of the recovery device 400 to the external power source before connecting the cleaner 300 to the recovery device 400. However, it is also possible to connect the power cable of the recovery device 400 to an external power source after the cleaner 300 is connected to the recovery device 400. For example, when the user intends to connect the power cable of the recovery device 400 to an external power source by setting only the recovery device 400 to a usable state, it is also possible that the cleaner 300 has already been connected to the recovery device 400. In this case, the dust suction fan 420 of the recovery device 400 may be unexpectedly operated by the user. Or in the case where the power supplied from the external power source to the recovery device 400 is recovered after the power failure, the dust suction fan 420 of the recovery device 400 may be operated accidentally for the user. In this way, when the dust suction fan 420 is unexpectedly operated by the user, the operation sound of the dust suction fan 420 may be uncomfortable for the user.
Prior art literature
Patent literature
Patent document 1: japanese patent laid-open publication No. Hei 3-267032
Disclosure of Invention
An object of the present disclosure is to provide a technique of suppressing unexpected operation of a dust collection fan for a user.
The recovery device of the present disclosure is: and a recovery device for sucking out dust from a dust storage chamber in the dust collector to recover the dust in a state that the dust collector is connected. The recovery device comprises: a dust suction fan for generating suction force for sucking dust from the dust storage chamber; a control part for making the dust collection fan work; and a power cable that can be connected to an external power source and that transmits electric power from the external power source to the control unit. When the power is supplied to the control unit via the power supply cable, the control unit operates the dust collection fan if the cleaner is connected to the collection device, and when the power supply to the control unit via the power supply cable is started in a state where the cleaner is connected to the collection device, the control unit maintains a stopped state of the dust collection fan.
The recovery device may further include: a current path. The current path may be as follows: when the cleaner is connected to the recovery device and power is supplied to the control unit via the power supply cable, the cleaner is in an energized state. The current path may also be as follows: when the cleaner is not connected to the recovery device and power is supplied to the control unit via the power supply cable, the cleaner is in a non-energized state. The current path may also be as follows: when the cleaner is connected to the recovery device and power is not supplied to the control unit, the cleaner is in an energizable state. The control unit may be as follows: when the current path changes from the non-energized state to the energized state, it causes the suction fan to operate. The control unit may further include: when the current path is changed from the energizable state to the energized state, it maintains the stopped state of the suction fan.
The vacuum cleaner of the present disclosure is configured to be connectable to the recovery device described above. The dust collector comprises: a suction fan for generating suction force for sucking dust; a battery that supplies power to the suction fan; and a charging circuit for charging the storage battery. The charging circuit is connected to the current path in a state where the cleaner is connected to the recovery device. When the charging circuit is connected to the current path, if the current path is in a conductive state, the battery is charged by the charging circuit.
The above-mentioned technique can restrain the unexpected work of dust collection fan to the user.
The objects, features and advantages of the present invention will become more apparent from the detailed description set forth below and the accompanying drawings.
Drawings
Figure 1 is a schematic cross-sectional view of a vacuum cleaner.
Figure 2 is a front view of the cleaner.
Figure 3 is a cross-sectional view of the periphery of the dust reservoir of the cleaner.
Fig. 4 is a cross-sectional view of the cleaner and the recovery apparatus.
Fig. 5 is a cross-sectional view of the cleaner and the recovery apparatus as seen from above.
Fig. 6 is a front view of the recovery device.
Fig. 7 is a schematic functional configuration diagram of a connection circuit of the recovery device and the vacuum cleaner.
Fig. 8 is a flowchart of a control section of the recovery apparatus.
Fig. 9 is a schematic cross-sectional view of a conventional vacuum cleaner.
Fig. 10 is a schematic perspective view of a conventional vacuum cleaner and a recovery apparatus.
Detailed Description
The embodiments will be described in detail below with reference to the drawings, but for the sake of easy understanding by those skilled in the art, for example, detailed descriptions of already known matters or repeated descriptions of substantially the same configuration may be omitted. Furthermore, the figures and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to thereby limit the subject matter recited in the scope of the summary.
(Integral Structure of vacuum cleaner)
Fig. 1 is a schematic cross-sectional view of a stick cleaner 100. Fig. 2 is a front view of the cleaner 100. The cleaner 100 will be described with reference to fig. 1 and 2.
As shown in fig. 1, the vacuum cleaner 100 includes: a suction nozzle 130 for sucking dust on the floor; a cleaner body 110 mounted to the suction nozzle 130; a grip 140 extending upward from the upper end 112 of the cleaner body 110. The cleaner body 110 and the grip 140 are attached so as to be tiltable with respect to the suction nozzle 130 in the front-rear direction. In fig. 1 and 2, the cleaner body 110 and the grip 140 are in an upright posture with respect to the suction nozzle 130, and do not tilt forward from the upright posture. In use of the cleaner 100, the cleaner body 110 and the grip 140 are held by a user in a posture of tilting backward with respect to the nozzle 130.
The suction nozzle 130 includes a nozzle housing 132 having a width wider than that of the cleaner body 110 so as to form a wide suction space 131 for sucking dust. The suction space 131 is opened toward the floor at a front side portion of the suction nozzle housing 132. On the rear side of the opening portion, the suction space 131 is closed based on the bottom 134 of the suction nozzle housing 132. A rotary brush 133 is disposed in the suction space 131, and the brush 133 is exposed from the nozzle housing 132 through an opening of the suction space 131 so as to be contactable with the floor.
As shown in fig. 2, the cleaner body 110 has a cylindrical frame 111 elongated in the up-down direction. The lower end of the frame 111 is attached to the rear of the nozzle housing 132 so as to allow the cleaner body 110 to tilt in the front-rear direction. The upper portion of the housing 111 is narrower toward the upper end 112 of the housing 111, and the grip 140 extends upward from the upper end 112. The grip 140 is a thick and thin rod-shaped portion that is gripped by a user. As shown in fig. 2, the grip 140 is provided with an operation portion 141 (operation button) that is operated by a user.
The housing 111 is configured to house various members for sucking up dust on the floor and storing the sucked dust. Specifically, the housing 111 is provided with: a fan chamber 153 disposed at an upper portion of the housing 111; a dust storage chamber 152 disposed at a lower side of the fan chamber 153; a suction pipe 113 disposed at the lower side of the dust storage chamber 152 and extending in the up-down direction. The fan chamber 153, the dust storage chamber 152, and the suction pipe 113 communicate with each other.
The fan chamber 153 is provided with: a suction fan 116 for generating an upward suction air flow for sucking dust on the floor into the cleaner 100; a battery 117 that supplies power to the suction fan 116; a charging circuit 170 for charging the battery 117. The suction fan 116 is operated or stopped based on the operation of the operation portion 141 by the user.
The front wall of the housing 111 is provided with: an exhaust port 151 formed to communicate with the fan chamber 153; a pair of electrical contacts 174, 175 disposed on the upper side of the exhaust port 151; magnetic plate 173. The suction air flow generated based on the suction force of the suction fan 116 is discharged from the fan chamber 153 to the outside of the cleaner 100 through the exhaust port 151.
The electrical contacts 174 and 175 are electrically connected to a charging circuit 170 for charging the battery 117 (see fig. 1), and are disposed at positions contacting contact portions 283 of the recovery device 200 described later. The magnetic plate 178 is disposed at a position that abuts against a holding portion 297 of the recovery device 200 described later.
As shown in fig. 3, a container-like filter unit 115 that is open downward is disposed in the dust storage chamber 152. The filter unit 115 is configured to allow passage of the suction airflow generated by the suction fan 116 on the one hand and to be able to trap dust contained in the suction airflow on the other hand. The filter unit 115 is formed of, for example, a nonwoven fabric filter. The dust collected by the filter unit 115 is stored in the dust storage chamber 152.
The dust storage chamber 152 is provided with: a dust discharge port 124 opened in a front wall of the housing 111; a cover 121 for opening and closing the dust discharge port 124, which is formed to be swingable. The cover 121 closes the dust discharge port 124 in an upright posture. This posture is referred to as a "closed posture" in the following description. On the other hand, when the cover 121 swings downward from the closed position by a predetermined angle (swing angle of 90 ° or less), the dust discharge port 124 is opened. The posture of the cover 121 at this time is referred to as "open posture" in the following description. When the cover 121 is in the open position, dust stored in the filter unit 115 is discharged outside the filter unit 115 through the dust discharge port 124.
As shown in fig. 1, the suction pipe 113 incorporated in the lower portion of the housing 111 is fixed in the housing 111, and when the cleaner body 110 is tilted rearward from the upright posture (the posture shown in fig. 1), it is tilted rearward together with the housing 111. When the cleaner body 110 is in the upright posture, the lower end of the suction pipe 113 is brought into contact with the bottom 134 of the nozzle housing 132. That is, when the cleaner body 110 is in the upright posture, the lower end of the suction pipe 113 is closed based on the bottom 134 of the suction nozzle housing 132. When the cleaner body 110 is tilted rearward from the upright posture, the lower end of the suction pipe 113 moves in the direction indicated by the arrow a in fig. 1. As a result, the internal space of the suction pipe 113 is in communication with the suction space 131 of the nozzle housing 132.
A check valve 114 closing the upper end of the suction pipe 113 when the suction fan 116 is not operated is installed at the upper end of the suction pipe 113. The check valve 114 is configured to be deformed based on the upward suction force of the suction fan 116 to open the opening of the upper end of the suction tube 113.
(Integral Structure of recovery device)
As shown in fig. 4, dust stored in the dust storage chamber 152 can be collected by the collection device 200 connected to the cleaner 100. Specifically, the recovery device 200 includes a housing 210 and a base plate 220. The frame 210 is attached to the front of the base plate 220, and the cleaner 100 is placed on the rear.
The frame 210 is provided with: a dust flow path 230 through which dust flows from the dust storage chamber 152 of the dust collector 100; and a recovery chamber 240 for collecting dust recovered from the cleaner 100. The dust flow path 230 is connected to the rear side of the recovery chamber 240. A dust collection fan 250 is disposed below the collection chamber 240. The suction fan 250 generates a suction force for sucking dust under the control of the control part 260, thereby generating a recovery airflow for sucking dust from the dust storage chamber 152 to the recovery chamber 240. A power cable 262 connectable to an external power source is connected to the control unit 260.
The frame 210 is provided with: an air inlet 234 for allowing air to flow into the frame 210 from the outside; and an exhaust port 235 for allowing air to flow out from the inside of the housing 210 to the outside. The air inlet 234 and the air outlet 235 are formed by a plurality of small holes formed through the housing 210.
As shown in fig. 5, the rear side surface of the housing 210 is formed of a connection wall 214 formed to be connectable to the cleaner body 110. As shown in fig. 4, a receiving space 213 for receiving the suction nozzle 130 is formed at a lower portion of the housing 210 so as not to interfere with the housing 210 when the cleaner 100 is connected to the recovery apparatus 200.
As shown in fig. 6, a groove 215 extending in the up-down direction is formed in the connection wall 214 of the housing 210. The groove portion 215 is provided with: a contact portion 283 having a pair of terminals 291, 292; a holding portion 297; a vent 236; and a recovery port 216.
As shown in fig. 5, the groove 215 is formed complementary to the front portion of the cleaner body 110, and allows the front portion of the cleaner body 110 in the upright posture to be fitted. The cleaner body 110 is positioned with respect to the recovery apparatus 200 in the left-right direction based on the front portion of the cleaner body 110 being fitted into the groove portion 215.
The terminals 291, 292 of the contact portion 283 are arranged to face the electrical contacts 174, 175 of the cleaner 100 in a state where the cleaner body 110 is fitted into the recess portion 215, and these terminals 291, 292 can be moved out and into the hole portions 293, 294 formed in the connection wall 214. The terminals 291, 292 are brought into contact with the electrical contacts 174, 175 by being biased in the direction protruding from the hole portions 293, 294 in a state in which the cleaner body 110 is fitted into the groove portion 215. In this state, the contact portion 283 is electrically connected to the electrical contacts 174, 175. On the other hand, in a state where the cleaner body 110 is not fitted in the recess 215, the contact portion 283 is electrically insulated from the electrical contacts 174 and 175.
The holding portion 297 is disposed at a position facing the magnetic plate 173 when the cleaner body 110 is fitted into the groove 215. The holding portion 297 is formed of, for example, a magnet material capable of magnetically attracting the magnetic plate 173. The cleaner body 110 is prevented from becoming a reclined posture based on the magnetic force acting between the holding portion 297 and the magnetic plate 173. That is, the magnetic force is a holding force for holding the connected state of the cleaner body 110 connected to the recovery apparatus 200. The position and posture of the cleaner 100 with respect to the recovery apparatus 200 are maintained in a state where the cleaner body 110 is fitted into the recess 215.
As shown in fig. 4, the vent 236 is formed to face the exhaust port 151 in a state where the cleaner 100 is connected to the recovery apparatus 200. The fan chamber 153 communicates with the internal space of the housing 210 through the vent 236 and the exhaust port 151. An intake passage 246 for allowing the recovered air flow from the air inlet 234 to flow into the fan chamber 153 is formed in the inner space of the housing 210 between the recovery chamber 240 and the peripheral wall 271 of the housing 210.
As shown in fig. 3, the recovery port 216 is formed so as to face the dust discharge port 124 in a state where the dust collector 100 is connected to the recovery device 200, and the recovery airflow can flow from the dust storage chamber 152 into the dust flow path 230 through the dust discharge port 124 and the recovery port 216. The recovery port 216 is formed to be capable of accommodating the lid 121 that swings in the direction indicated by the arrow in fig. 3 to be opened.
As shown in fig. 4, a space for collecting dust collected from the cleaner 100 is formed in the collection chamber 240. A circular communication port for communicating the space in the recovery chamber 240 with the dust collection fan 250 is formed in the bottom wall 245 of the recovery chamber 240. As shown in fig. 5, a dust removal filter 247 that allows air to pass therethrough and that captures dust contained in the passed air is attached to the communication port.
The dust suction fan 250 is configured to suck air in the recovery chamber 240 through the dust removal filter 247. In a state where the cleaner 100 is connected to the collecting device 200, the suction force of the suction fan 250 acts on the cover 121 of the cleaner 100 through the collecting chamber 240 and the dust flow path 230. The suction fan 250 is configured to be capable of obtaining a suction force of a magnitude that tilts the cover 121 from the closed posture to the open posture and sucks dust in the dust storage chamber 152.
The air sucked by the suction fan 250 flows into the space formed between the suction fan 250 and the peripheral wall portion 271, and is discharged to the outside of the housing 210 through the air outlet 235. The flow of this air is represented in fig. 4 as a recovered flow indicated by the arrows. The recovered airflow flows through a flow path from the air inlet 234, which is an upstream end, to the air outlet 235, which is a downstream end, and during this time, sequentially passes through the fan chamber 153, the dust storage chamber 152, the dust flow path 230, the recovery chamber 240, and the dust collection fan 250.
(Constitution of detection Circuit)
In a state where the cleaner 100 is connected to the collection device 200, a connection circuit 203 shown in fig. 7 is formed. The connection circuit 203 includes: a circuit 201 provided in the cleaner body 110; and a circuit 202 provided in the recovery device 200, which detects whether the cleaner main body 110 is connected to the recovery device 200 based on the state of energization between the circuits 201, 202. The connection circuit 203 is specifically described below.
The circuit 202 of the recovery device 200 includes a 1 st current path 284 electrically connecting the control unit 260 and the contact unit 283, and a connection detection unit 286 detecting the current of the 1 st current path 284. The suction fan 250 and the power cable 262 are electrically connected to the control unit 260, respectively. The circuit 201 of the cleaner 100 has a charging circuit 170 and a2 nd current path 172 electrically connecting the charging circuit 170 to the electrical contacts 174, 175. The battery 117 is electrically connected to the charging circuit 170, and the suction fan 116 is electrically connected to the battery 117.
In a state where the cleaner 100 is connected to the recovery device 200, the 1 st current path 284 and the 2 nd current path 172 are electrically connected by the contact portion 283 being in contact with the electrical contacts 174, 175, thereby forming the connection circuit 203 connecting the control portion 260 and the charging circuit 170. At this time, if power is supplied from the power cable 262 to the control unit 260, a current flows through the 1 st current path 284 and the 2 nd current path 172, and the connection detection unit 286 detects the current flowing through the 1 st current path 284. The control unit 260 determines that the cleaner 100 is connected to the collection device 200 based on the detection of the current flowing through the 1 st current path 284 by the connection detection unit 286. The state of the 1 st current path 284 when the connection detecting portion 286 detects the current flowing in the 1 st current path 284 is referred to as an "energized state".
In the recovery device 200, it is not necessary to determine that the cleaner 100 is connected to the recovery device 200 by detecting the current by the connection detecting unit 286. For example, a switch for physically detecting that the cleaner 100 is connected to the recovery apparatus 200 may be provided in the recovery apparatus 200. For example, the switch may be formed so as to be capable of being opened and closed in a hole portion provided in the groove portion 215. In this case, the control unit 260 may detect that the switch is pushed in by the cleaner body 110 when the cleaner 100 is connected to the recovery apparatus 200. That is, the control unit 260 may determine that the cleaner 100 is connected to the recovery apparatus 200 based on whether or not the switch is pushed by the cleaner body 110.
In the connection circuit 203, when the cleaner 100 is not connected to the recovery device 200 although power is supplied from the power supply cable 262 to the control unit 260, current does not flow through the 1 st current path 284. Such a state is referred to as a "non-energized state". When the 1 st current path 284 is in the non-energized state, the 1 st current path 284 is in the energized state by connecting the cleaner 100 to the collection device 200.
In the connection circuit 203, when the cleaner 100 is connected to the recovery device 200 and power is not supplied from the power cable 262 to the control unit 260, current does not flow in the 1 st current path 284. Such a state is referred to as an "energizable state". When the 1 st current path 284 is in the energizable state, the 1 st current path 284 is in the energized state based on the connection of the power cable 262 to the external power source by the user.
When the 1 st current path 284 is changed from the non-energized state to the energized state, the control unit 260 operates the dust collection fan 250. On the other hand, when the 1 st current path 284 is changed from the energizable state to the energized state, the control unit 260 maintains the stopped state of the dust collection fan 250. That is, when the control unit 260 is supplied with electric power from the power cable 262, if the user connects the cleaner 100 to the collection device 200, the dust collection fan 250 is operated (changed from the non-energized state to the energized state). On the other hand, when the cleaner 100 is connected to the collection device 200, if the power supply from the power cable 262 to the control unit 260 is started, the stopped state (the state in which the cleaner fan 250 is energized is changed to the energized state) is maintained.
When the 1 st current path 284 is in the energized state, the battery 117 is charged by the charging circuit 170.
(Description of operation of cleaner during cleaning operation)
The cleaner 100 is held by a user in a posture in which the cleaner body 110 and the grip 140 are inclined rearward with respect to the nozzle 130 during a cleaning operation. By making the cleaner body 110 and the grip 140 in a posture inclined backward with respect to the suction nozzle 130, it is easy to move the suction nozzle 130 forward while pushing it. In this state, the inner space of the suction pipe 113 communicates with the suction space 131 of the suction nozzle 130.
When the user operates the operation unit 141 to operate the suction fan 116, the suction fan 116 generates an upward suction force. Based on the suction force, the check valve 114 opens the upper end of the suction pipe 113. If the upper end of the suction pipe 113 is opened, the suction force of the suction fan 116 generates a suction air flow that sucks dust through the suction space 131 of the suction nozzle 130. The suction airflow flows into the dust storage chamber 152 through the suction nozzle 130 and the suction pipe 113. Dust on the floor surface flows into the dust storage chamber 152 by the suction airflow, and is trapped by the filter unit 115 disposed in the dust storage chamber 152. The dust trapped 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, dust trapped by the filter unit 115 does not fall into the suction pipe 113 and is stored in the dust storage chamber 152.
(Description of operation and control method of recovery device)
The user mounts the cleaner 100 to the collection device 200 as shown in fig. 4 in order to collect dust accumulated in the dust storage chamber 152. Specifically, after the user sets the cleaner 100 on the base plate 220 of the recovery apparatus 200, the cleaner body 110 and the grip 140 are in an upright posture. In a state where the cleaner body 110 in the upright posture is fitted into the recess 215 of the recovery device 200, the cover 121 faces the recovery port 216, and the fan chamber 153 of the cleaner 100 communicates with the intake runner 246 of the recovery device 200 through the exhaust port 151.
In a state where the cleaner 100 is connected to the collecting device 200, the terminals 291, 292 of the contact portion 283 are pressed into the hole portions 293, 294 of the connecting wall 214 by the cleaner body 110. In this state, since the contact portion 283 is in contact with the electrical contacts 174, 175, the 1 st current path 284 is electrically connected to the 2 nd current path 172, thereby forming the connection circuit 203. At this time, if electric power is supplied to the control section 260 through the power supply cable 262, electric current flows in the connection circuit 203. The connection detecting unit 286 detects the current flowing through the 1 st current path 284 of the connection circuit 203, and transmits a connection detection signal indicating that the cleaner 100 is connected to the recovery apparatus 200 to the control unit 260.
When receiving the connection detection signal from the connection detection unit 286, the control unit 260 determines what state the 1 st current path 284 is in. When the control unit 260 determines that the 1 st current path 284 is changed from the non-energized state to the energized state, the dust collection fan 250 is operated for a predetermined period of time, and dust collection by the collection device 200 is performed. On the other hand, when the control unit 260 determines that the 1 st current path 284 is changed from the energization state to the energization state, the stopped state of the dust collection fan 250 is maintained.
Here, a control method of the control unit 260 from the time when the power cable 262 is connected to the external power supply until the recovery device 200 is put into the standby mode will be described with reference to fig. 8.
When the power cable 262 is connected to an external power source, power is supplied to the control unit 260 through the power cable 262 (step ST 100). Based on the power supply, the control section 260 is started (step ST 120). The control unit 260 after the activation determines the connection state between the cleaner 100 and the collection device 200 based on the presence or absence of the connection detection signal from the connection detection unit 286 (step ST 200).
When receiving the connection detection signal from the connection detection unit 286, the control unit 260 determines that the 1 ST current path 284 is changed from the energizable state to the energized state (step ST 220). In this case, the control unit 260 maintains the stopped state of the dust collection fan 250 (step ST 240). At this time, electric power is supplied to the charging circuit 170, and the battery 117 is charged by the charging circuit 170 (step ST 260). When the battery 117 is charged, the recovery device 200 is put into a standby mode (step ST 400). The standby mode is a state in which the 1 st current path 284 is energized and the battery 117 is charged. On the other hand, when the connection detection signal is not received from the connection detection unit 286, the control unit 260 determines that the 1 ST current path 284 is maintained in the non-energized state (step ST 300).
When it is determined that the 1 ST current path 284 is maintained in the non-energized state, the control unit 260 determines whether or not the vacuum cleaner 100 is in a state of being removed from the collection device 200 based on the presence or absence of the connection detection signal from the connection detection unit 286 (step ST 320). When the connection detection signal is not received from the connection detection unit 286, the control unit 260 determines that the vacuum cleaner 100 is in a state of being removed from the collection device 200, and repeatedly performs the determination for detecting the connection (step ST 320). On the other hand, when receiving the connection detection signal from the connection detection unit 286, the control unit 260 determines that the 1 ST current path 284 is changed from the non-energized state to the energized state (step ST 340).
When it is determined that the 1 ST current path 284 is changed from the non-energized state to the energized state, the control unit 260 operates the dust collection fan 250 (step ST 360). At this time, the charging circuit 170 receives electric power through the 1 ST current path 284, and the battery 117 is charged by the charging circuit 170 (step ST 380). When the battery 117 is charged, the recovery device 200 is put into a standby mode (step ST 400).
In step ST360, if the suction fan 250 is operated, the suction fan 250 generates a suction force. The suction force acts on the cover 121 facing the recovery port 216 through the recovery chamber 240 and the dust flow path 230. As a result, the cover 121 is tilted downward from the closed position closing the dust discharge port 124 as shown in fig. 3 to an open position opening the dust discharge port 124.
When the cover 121 is tilted downward, the dust discharge port 124 is opened, and the dust flow path 230, the dust storage chamber 152, the fan chamber 153, and the air intake path 246 communicate with each other. Accordingly, the suction force of the suction fan 250 acts on the air inlet 234 of the air intake runner 246 through the collection chamber 240, the dust runner 230, the dust storage chamber 152, the fan chamber 153, and the air intake runner 246. As a result, as shown by the arrows in fig. 4, outside air flows into the intake runner 246 through the intake port 234, and a recovered air flow from the intake runner 246 to the ventilation day 236 is generated. The recovered air flows into the fan chamber 153 and the dust storage chamber 152 sequentially through the air vent 236 and the air outlet 151. The recovered air flow passes through the dust storage chamber 152, and causes dust in the dust storage chamber 152 to flow out from the dust discharge port 124.
The dust flowing out of the dust discharge port 124 flows into the recovery chamber 240 by passing through the recovery port 216 and the dust flow path 230 in this order. In the recovery chamber 240, the dust flowing in is trapped by the dust removal filter 247. The dust trapped by the dust removal filter 247 is stored in the recovery chamber 240. The recovered air flow after passing through the dust removing filter 247 is discharged from the air outlet 235 to the outside of the recovery device 200.
After performing a cleaning operation using the cleaner 100, the user connects the cleaner 100 to the recovery apparatus 200 in order to recover dust accumulated in the cleaner 100. At this time, generally, the recovery device 200 has been supplied with electric power from an external power source through the power cable 262. In this case, the dust collection fan 250 operates according to the connection between the dust collector 100 and the collection device 200, and dust collection is performed.
In the above-described normal use mode, the recovery device 200 receives electric power from an external power supply before the cleaner 100 is connected to the recovery device 200. However, it may also occur that the recovery device 200 receives power supply from an external power source after the cleaner 100 is connected to the recovery device 200. For example, the user may want to connect the power cable 262 of the recovery device 400 to which the cleaner 100 is connected to an external power source by setting only the recovery device 400 to a usable state. Or may start to supply power to the recovery apparatus 400 to which the cleaner 100 is connected after the power outage is restored. In this case, if the dust collection fan 420 of the recovery device 400 is operated based on the start of the power supply from the external power source to the recovery device 400, the operation sound from the dust collection fan 420 is an unexpected sound for the user. As a result, the user may feel surprise about the operation sound of the dust collection fan 420, and may feel uncomfortable about the operation sound.
In order to avoid such a situation, when the power supply to the control unit 260 is started in a state where the cleaner 100 is connected to the collection device 200, the control unit 260 maintains the stopped state of the dust collection fan 250.
In the above embodiment, the recovery device 200 is configured to charge the battery 117 of the dust collector 100 connected to the recovery device 200. Alternatively, the recovery device 200 may not have a charging function for the cleaner 100. In this case, the circuit configuration of the recovery device 200 is simplified.
In the above embodiment, the recovery device 200 is configured to recover dust from the stick-type dust collector 100. Alternatively, the recovery device 200 may be configured to recover dust from a cylinder type cleaner or a portable cleaner.
(Effects etc.)
The recovery device 200 according to the above embodiment has the following features and the following effects.
One aspect of the above embodiment relates to the recovery device comprising: and a recovery device for sucking out dust from a dust storage chamber in the dust collector to recover the dust when the dust collector is connected. The recovery device comprises: a dust suction fan for generating suction force for sucking dust from the dust storage chamber; a control part for making the dust collection fan work; and a power cable that can be connected to an external power source and that transmits electric power from the external power source to the control unit. When the power is supplied to the control unit via the power supply cable, the control unit operates the dust collection fan if the cleaner is connected to the collection device, and when the power supply to the control unit via the power supply cable is started in a state where the cleaner is connected to the collection device, the control unit maintains a stopped state of the dust collection fan.
After a cleaning operation is performed using the cleaner, the user connects the cleaner to the recovery device in order to recover dust accumulated in the cleaner. At this time, generally, the recovery device has received power supply from an external power source through a power cable. In this case, the dust collection fan operates according to the connection between the cleaner and the collection device to collect dust.
In the above-described normal use mode, the recovery device receives electric power from an external power supply before the cleaner is connected to the recovery device. However, it may also occur that the recovery device receives power supply from an external power source after the cleaner is connected to the recovery device. For example, the user may want to connect the power cable of the recovery device to which the cleaner is connected to an external power source by only setting the recovery device to a usable state. Or may start to supply power to the recovery device to which the cleaner is connected after the power outage is restored. In such a case, if the dust collection fan of the recovery device is operated based on the start of the power supply from the external power source to the recovery device, the operation sound from the dust collection fan is an unexpected sound to the user. As a result, the user may feel surprise about the operation sound of the dust collection fan, and may feel uncomfortable about the operation sound.
In order to avoid such a situation, when the power supply to the control unit is started in a state where the cleaner is connected to the collecting device, the control unit maintains the stopped state of the dust collection fan.
In the above configuration, the recovery device may further include: a current path. The current path may be as follows: when the cleaner is connected to the recovery device and power is supplied to the control unit via the power supply cable, the current path is in an energized state. The current path may also be as follows: when the cleaner is not connected to the recovery device and power is supplied to the control unit via the power supply cable, the current path is in a non-energized state. The current path may also be as follows: when the cleaner is connected to the recovery device and power is not supplied to the control unit, the current path is in a state where current can be supplied. The control unit may be as follows: when the current path is changed from the non-energized state to the energized state, the control unit operates the dust collection fan. The control unit may further include: when the current path is changed from the energizable state to the energized state, the control unit maintains the stopped state of the dust collection fan.
In the above configuration, the dust collection fan is operated when the current path is in the energized state by connection of the dust collector and the collection device. On the other hand, when the current path is turned on by the power cable being connected to the external power source, the dust collection fan does not operate. Therefore, the operation of the dust collection fan can be controlled according to the state of the current path before the current becomes the energized state.
In the above configuration, the recovery device may further include: the connection detection unit is capable of detecting a current flowing through the current path.
In the above configuration, the current of the current path is detected by the connection detection unit, so that it can be determined that the current path is in the energized state.
A dust collector according to another aspect of the above embodiment is configured to be connectable to the above recovery device. The dust collector comprises: a suction fan for generating suction force for sucking dust; a battery that supplies power to the suction fan; and a charging circuit for charging the storage battery. The charging circuit is connected to the current path in a state where the cleaner is connected to the recovery device. When the charging circuit is connected to the current path, if the current path is in a conductive state, the battery is charged by the charging circuit.
In the above configuration, when the cleaner is connected to the collecting device, the battery of the cleaner can be charged.
Industrial applicability
The above-described technique can be well applied to a device used for cleaning work.

Claims (4)

1. A collecting device for collecting dust by sucking the dust from a dust storage chamber in a vacuum cleaner in a state where the vacuum cleaner is connected, comprising:
a dust suction fan for generating a suction force for sucking dust from the dust storage chamber;
a control unit for operating the dust collection fan; and
A power cable that is connectable to an external power source and that transmits electric power from the external power source to the control unit; wherein,
When the cleaner is connected to the recovery device in a state where power is supplied to the control unit via the power supply cable, the control unit operates the dust collection fan,
When the power supply to the control unit via the power cable is started in a state where the cleaner is connected to the collecting device, the control unit maintains a stopped state of the dust collection fan.
2. The recycling apparatus according to claim 1, further comprising:
a current path; wherein,
When the dust collector is connected to the recovery device and power is supplied to the control part through the power cable, the current path is in an energized state,
When the dust collector is not connected to the recovery device and power is supplied to the control part through the power cable, the current path is in a non-energized state,
When the dust collector is connected to the recovery device and power is not supplied to the control part, the current path is in an energizable state,
When the current path is changed from the non-energized state to the energized state, the control part causes the dust collection fan to operate,
When the current path is changed from the energizable state to the energized state, the control portion maintains a stopped state of the dust collection fan.
3. The recycling apparatus according to claim 2, further comprising:
The connection detection unit is capable of detecting a current flowing through the current path.
4. A vacuum cleaner configured to be connectable to the recovery apparatus according to claim 2 or 3, and comprising:
A suction fan for generating suction force for sucking dust;
A battery that supplies power to the suction fan; and
A charging circuit for charging the storage battery; wherein,
In a state where the cleaner is connected to the recovery device, the charging circuit is connected to the current path,
When the charging circuit is connected to the current path, if the current path is in an energized state, the battery is charged by the charging circuit.
CN202280067831.3A 2021-10-08 2022-06-30 Recovery device for recovering dust from dust collector and dust collector connected with recovery device Pending CN118076275A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021-166377 2021-10-08
JP2021166377A JP2023056893A (en) 2021-10-08 2021-10-08 Collection device for collecting dust from cleaner
PCT/JP2022/026272 WO2023058277A1 (en) 2021-10-08 2022-06-30 Collection device for collecting dust from vacuum cleaner, and vacuum cleaner connected to collection device

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CN118076275A true CN118076275A (en) 2024-05-24

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US20040155532A1 (en) * 2003-02-07 2004-08-12 Brotto Daniele C. Method for sensing switch closure to prevent inadvertent startup
JP6974931B2 (en) * 2015-12-18 2021-12-01 東芝ライフスタイル株式会社 Dust collector
DE112018002164T5 (en) * 2017-04-25 2020-01-09 Nitto Kohki Co., Ltd. ENGINE CONTROL DEVICE AND ELECTRIC TOOL
JP6933923B2 (en) * 2017-06-22 2021-09-08 東芝ライフスタイル株式会社 Vacuum cleaner
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