EP3320822B1 - Appareil d'aspiration pourvu d'un dispositif de raccordement - Google Patents

Appareil d'aspiration pourvu d'un dispositif de raccordement Download PDF

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Publication number
EP3320822B1
EP3320822B1 EP17200199.2A EP17200199A EP3320822B1 EP 3320822 B1 EP3320822 B1 EP 3320822B1 EP 17200199 A EP17200199 A EP 17200199A EP 3320822 B1 EP3320822 B1 EP 3320822B1
Authority
EP
European Patent Office
Prior art keywords
switch
safeguarding
suction
control
suction device
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.)
Active
Application number
EP17200199.2A
Other languages
German (de)
English (en)
Other versions
EP3320822A1 (fr
Inventor
Rainer Hafenrichter
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.)
Festool GmbH
Original Assignee
Festool GmbH
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
Publication date
Application filed by Festool GmbH filed Critical Festool GmbH
Publication of EP3320822A1 publication Critical patent/EP3320822A1/fr
Application granted granted Critical
Publication of EP3320822B1 publication Critical patent/EP3320822B1/fr
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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
    • 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
    • A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays
    • 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
    • A47L7/0095—Suction cleaners or attachments adapted to collect dust or waste from power tools
    • 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
    • A47L9/2868—Arrangements for power supply of vacuum cleaners or the accessories thereof
    • 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
    • A47L9/2889—Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user

Definitions

  • the invention relates to a suction device for separating particles from a suction flow, with a suction motor for generating the suction flow and with a suction housing, in which the suction motor and a dust collecting space for collecting the separated from the suction flow particles are arranged, wherein on the suction housing, an electrical connection device , In particular a socket, for providing an electrical supply voltage for an electrical load, in particular a hand-held power tool, is arranged, wherein the suction device comprises a switch assembly with an electrical switch, based on a manually operable control element between a switch-off, in which the suction motor is not switched on, and a closed position is adjustable, in which the suction motor is switched on or turned on.
  • a suction device of this type is for example in DE 10 2009 015 642 A1 and DE 20 2011 003 605 explained.
  • the known vacuum cleaner can be equipped with up to two electrical connection devices in the form of sockets.
  • an electric hand-held machine tool can be connected to the sockets or connection devices.
  • the vacuum cleaner or the suction device serves as a power distributor, but can also be turned on and off by the hand-held machine tool.
  • the switch assembly has a separate fuse from the switch device for the electrical connection device, which at least one electrical fault condition on the connection device of a release position, in which the supply voltage is applied to the connection device , in a backup position switches, in which the supply voltage is disconnected from the terminal device, and that the securing means based on the operating element between the securing position and the release position, in particular from the securing position into the release position, can be actuated.
  • the switch from the open position to the closed position actuates or adjusts the control expediently the securing device of the securing position in the release position. It is also possible that the operating element when adjusting the switch from the closed position to the open position actuates or adjusts the securing device from the release position in the direction of the securing position. But it is also possible that the operating element during adjustment of the switch from the closed position in the open position, the safety device in its respective position, for example, the release position or the securing position, leaves and / or does not act on the safety device.
  • the suction device has a switch arrangement which comprises an additional securing device in order to move from a release position to a securing position in the event of a fault on the connection device for the external consumer, so that the connection device for the external consumer is switched off, so to speak.
  • the operating concept in this context provides that the operator with the control element, with which he already turns on the suction device and off, the suction unit thus activates or allows its activation via the connection device, in addition, can also actuate the securing device, preferably can adjust from the securing position to the release position.
  • the hand-held power tool is, for example, a saw, in particular a dip saw or pendulum hood saws, a milling cutter, in particular a router, a grinding device or the like.
  • the electrical consumer for example, the hand-held machine tool, advantageously forms no part of the suction device.
  • the electrical load and the suction device expediently form separate structural units from each other.
  • the electrical load is advantageous self-sufficient or operated separately from the suction device.
  • the electrical consumer has expediently no suction.
  • the electrical load and the suction device are advantageously electrically connected or connectable exclusively via electrical contacts and / or an electrical connecting line or connecting line.
  • the electrical consumer for example the hand-held power tool, is preferably not mechanically connectable or connected to the suction device apart from a supply line of the load connected to the connection device or the connection contacts of the load in electrical contact with the connection device.
  • the suction device is or preferably forms a workshop vacuum cleaner.
  • the suction device has expediently roles for rolling on a substrate.
  • the switch and the safety device are arranged in one and the same housing.
  • the Safety device forms an integral part of the switch or both, safety device and switch, form an integral device or integral component.
  • switch and the safety device are arranged in separate housings.
  • the switch and the securing device which are configured as separate switching elements and / or arranged in separate housings, are accommodated in a holder which has receptacles for the switching element and the securing device.
  • the recordings include, for example, plug-in recordings, snap-in recordings or the like.
  • the securing device has a holding arrangement, for example a latching arrangement, for holding the securing device as a whole and / or an actuating element of the securing device in a position assigned to the release position.
  • the actuating element remains in this position even when the operating element does not act on the securing device.
  • the actuator for example, a slide, a push button or the like, for example, in a position, in particular a depressed position remain, even if the operating element does not act in the direction of the release position on the securing device.
  • the securing device is held only internally in the release position, for example by switching contacts of the securing device remain in the release position or in a contact position, while an actuating element of the securing device from one of the release position in one of the securing position is adjustable.
  • an actuating element of the securing device is movable relative to these switching contacts, but they remain in the release position, even if the actuating element is actuated in a direction associated with the securing position.
  • the operating element without the securing device from the release position to actuate the securing position from one of the switch position of the switch associated position is adjustable.
  • the operator can switch off the suction device by adjusting the operating element in the direction of the position assigned to the switch-off position, for example by turning it or pressing it by pressing a button. Nevertheless, the safety device remains in the release position.
  • the switch and the securing device each have an actuating element which can be actuated by the operating element.
  • actuating element which can be actuated by the operating element.
  • the actuating elements of the switch and securing device expediently have the same or substantially the same actuating stroke and / or operating angle for adjustment between the respective switching positions of the switch and the securing device, ie switch-on position and switch-off position or securing position and release position.
  • the operating element at a Betusch Trentshub or a rotation about the operating angle simultaneously as switches and the safety device between their respective positions adjusted, for example, the switch from the off position in the closed position and the securing device from the securing position to the release position.
  • control element with the switch for example, its actuator is fixedly coupled so that upon actuation or adjustment of the control of the switch is forcibly operated between the open position and the closed position.
  • this concept is advantageous when the switch is designed as a rotary switch. When the control is turned, the rotary switch is moved to the on or off position. The operating element is latched and / or glued and / or welded and / or jammed or the like with the actuating element of the switch, for example.
  • the actuating element of the switch simultaneously represents the operating element of the switch, so that therefore the actuating element of the switch for actuating the securing device is configured.
  • control element is not fixedly coupled to the switch and / or the securing device.
  • the operating element and, on the other hand, the switch and / or the securing device have clearance, such that the operating element can be adjusted without actuating the switch or the securing device.
  • the switch is designed as a push-button switch.
  • the switch is actuated, for example, from the open position to the closed position, with a subsequent second keystroke from the closed position to the open position.
  • the switch is designed as a push-button switch, which is adjustable by means of successive tactile actuations from the open position to the closed position and from the closed position to the open position.
  • the operating element is decoupled from an actuating element of the pushbutton, that is, is movable relative to this actuating element.
  • the key switch so to speak pretends the position and / or the kinematics of the operating element when the operating element is firmly coupled to the key switch. If the key switch, for example, assumes the switch-on position, the operating element is in a position assigned to this switch-on position, for example a position pressed in the direction of the vacuum cleaner housing. A suspension of the key switch can thus react directly on the control.
  • a spring arrangement of the switch is coupled to the operating element.
  • the securing device is designed as a push-button switch or has a push-button switch, which can be actuated by a tactile actuation from the securing position into the release position.
  • both namely the securing device and the switch
  • both switches are designed as a pushbutton switch or have push-button, so that both switches can be actuated by a linear actuation or tactile actuation.
  • the switch for the suction motor is designed as a rotary switch
  • the safety device is designed as a key switch or has a key switch.
  • the operating element does not take the actuating element of the securing device in the direction of the securing position when it actuates the switch from the switched-on position into the switched-off position.
  • a clearance is present between the actuating element of the securing device and the or an operating element such that the operating element without the actuating element of the securing device from the release position to actuate the securing position from one of the closed position of the switch associated position in one of the off position Switch assigned position can be actuated.
  • the operating element has an actuating gate and / or an actuating projection for actuating the securing device, in particular an actuating element of the securing device, from the securing position into the release position.
  • this involves a rotary link and / or an inclined surface, which, upon rotation of the operating element from a rotational position assigned to the switch-off position of the switch, engages with the actuating element of the safety device in a rotational position assigned to the switch-on position of the switch and the securing device in the direction the release position is actuated.
  • a clearance is preferably present between the actuating element of the securing device and the operating element, for example the actuating projection or the actuating link and the actuating element of the securing device, when the securing device remains in the release position, but the operating element is assigned to one of the switch-off position of the switch Position is adjusted back.
  • the actuating projection from the actuating element of the securing device can be adjusted linearly or in the sense of a rotation away, wherein the securing device remains in the release position.
  • the securing device is preferably provided exclusively for securing the connection device.
  • a fault situation can be detected on the connection device in order to switch off the connection device.
  • the securing device secures at least one further electrical component, for example, the suction motor and / or a control of the suction device.
  • the Suction device can be supplied via a connecting cable or by means of a battery arrangement, can be hedged in total by means of the securing device.
  • the suction device can be a network-connected device, that is to say, it can be connected to a power network. H. that it preferably has an electrical connection device for connection to a power supply network, in particular an AC power supply network.
  • the power grid is, for example, a 220-240 V AC, 120 V AC, or the like. It can also be a DC network.
  • the suction device advantageously has an energy storage arrangement, for example a battery pack or the like, on board. It is also possible for the suction device to have only one connection or one connection interface for connecting an energy storage arrangement, in particular one or more battery packs.
  • the securing device is connected between the connection device for the electrical consumer and a connection of the suction device for connecting at least one energy store, in particular a battery pack, and / or for connection to an electrical supply network.
  • connection interface or the connection of the suction device comprises, for example, connection contacts for at least one energy store and / or for a power cable.
  • the power cord can be plugged into the terminals and includes, for example, a power plug for plugging into a power outlet of a supply network, such as a network with 120 V DC or 230 V AC.
  • a supply network such as a network with 120 V DC or 230 V AC.
  • connection point or the connection of the suction device comprises a power cable, which is fixedly mounted on the suction device.
  • connection device via the securing device with a connecting line of the suction device for connection to a power supply network in particular an AC voltage network
  • a power supply network in particular an AC voltage network
  • the potentials provided in each case by the power supply network are uninfluenced and / or unchanged connected or connectable by the safety device, apart from the switching off of the supply voltage in the securing position.
  • a supply voltage of 220-240 V is provided, it is switched through directly by the safety device, as it were, to the connection device when the safety device is in the release position.
  • connection device for the electrical load and the connection or the connecting line of the suction device or the energy storage device, therefore, apart from the safety device in this embodiment, no intermediate electrical or electronic components are present.
  • no power electronic or other electrical change of the supply voltage is provided between the connection device for the electrical load on the one hand and a power supply line of the suction device or one connection of the suction device for an energy storage device on the other hand.
  • the safety device for electrical isolation of the connection device for the electrical load for example, the hand-held machine tool, designed and / or provided by a connection and / or by a connecting line of the suction device, with or with the suction device an electrical supply network, in particular AC mains, can be connected.
  • the safety device preferably has, in particular exclusively, electrical switch contacts for switching the supply voltage to the electrical connection device.
  • the securing device comprises a relay.
  • the switch contacts can be closed in the release position be so that the supply voltage is applied to the terminal device, while they are electrically separated from each other in the securing position and / or apart, so that the supply voltage is not applied to the terminal device.
  • the safety device is configured to an all-pole and / or multi-pole switching.
  • the securing device is configured to connect the electrical connection device to a neutral conductor or ground conductor in the release position and to disconnect the electrical connection device from a neutral conductor or ground conductor in the securing position.
  • protective contacts of the connecting device are electrically connected to a ground potential / neutral potential even in this disconnected position or release position.
  • the securing device is therefore advantageously not designed and / or provided for switching the protective contacts.
  • a preferred concept further provides that the securing device is designed not only for the electrical protection of the connection device but also for the electrical protection of at least one further component of the suction device, in particular of the suction motor.
  • connection device is designed and / or arranged to secure a total flow, which is at least the current flowing through the connection device and at least one further current, in particular the motor current and / or other currents, which are consumed on or in the suction device.
  • the securing device is connected between an electrical connection of the suction device and the connection device and at least one further consumer, for example the suction motor and / or further components. It is possible that the switch assembly for the suction motor between the terminal of the suction device, such as a power line or a to the connection for an electrical energy storage, and the safety device is connected.
  • the electrical connection device and the switch assembly are connected in parallel to the output of the safety device, ie that the safety device between the electrical connection of the suction device and on the one hand the switch assembly with the suction motor and on the other hand, the electrical connection device for the electrical load switched is.
  • Securing other components of the suction device can, as I said, include the suction motor.
  • other electrical consumers such as an electronic control of the suction device, can be secured in this way. Consequently, preferably all of the suction device including the connection device with the electrical consumer consumed currents are protected by the securing device.
  • the suction device may be connected directly behind or at an electrical connection of the suction device, which is provided for connection to an electrical supply network and / or an electrical energy store, in particular a battery pack.
  • the suction device may comprise two or more electrical sockets for insertion of a hand-held machine tool.
  • the suction device is advantageously configured for an automatic operation.
  • it is advantageous if it has an automatic switch or a switching device for switching on and off the suction motor in response to a current flow through the connection device. So if, for example, the switch is in the on position, not yet directly flow to the suction motor. Only when the connection device is used by an electrical load, ie, current flows over it, the suction motor turns on.
  • the switching device has, for example, one or more shunts or the like other sensors suitable for detecting a current flow via the connection device.
  • the switch has a first closed position and a second closed position and an off position, wherein the first closed position corresponds to an actual switching on the suction motor, d. H. that the naturally-aspirated engine runs when the switch is in the first switch-on position, while in the second switch-on position the suction motor is switched on depending on a current drain or other use of the connecting device.
  • the naturally aspirated engine only runs when the connection device is used, for example, the aforementioned switching device detects the use of the connection device and turns on the suction motor.
  • the safety device can be actuated from the securing position to the release position.
  • a rotation for example, a left turn
  • a rotation for example, a clockwise rotation
  • an opposite second direction of rotation of the second switching position be assigned, wherein the Off position between these two first and second rotational positions is.
  • a first link and / or a first actuating projection of the first rotational position be assigned and actuate the securing device from the securing position to the release position and a second link and / or a second actuating projection of the second rotational position to be assigned and the securing device also from the Press the securing position into the release position.
  • sequential actuation rotary actuation or pressure actuation
  • the control element actuates the switch starting from the switch-off position into the first switch-on position and then the second switch-on position, for example the first switch-on position for continuous operation of the suction motor and the second switch-on position an operation of the suction motor in dependence on a use of the connecting device are assigned.
  • the assignment of the first and second Switching position to the operating modes of the vacuum cleaner is also possible otherwise.
  • the security device can provide a variety of backup options.
  • the error condition is, for example, a current error condition, i. H. the exceeding of a maximum current, and / or a power error condition, d. H. the exceeding of a maximum power and / or a fault current error condition, d. H. that a so-called fault current flows through the connecting device.
  • the error condition can also be a thermal error condition, i. H. For example, an overload on the suction device or its connecting line, a thermal overload on the connecting device or the like.
  • the securing device expediently has a thermal protection switch which switches in the direction of the securing position when a thermal threshold value is exceeded.
  • the safety device has a residual current circuit breaker. It should also be mentioned at this point that the connecting device expediently has a protective contact. Thus, therefore, protective conductor contacts are provided on the connection device.
  • the safety device has a current protection switch which switches in the direction of the securing position when a maximum current value on the connection device is exceeded.
  • the maximum current drain can be secured via the connection device.
  • the control is expediently designed as a rotary control.
  • the operating element is rotatably mounted.
  • the control element is mounted linearly adjustable.
  • the control element has a linearly adjustable control body on.
  • This operating body is expediently arranged below a protective film or an elastic cover.
  • the operating element expediently has at least one film switch or a foil cover or an elastic cover. Under the foil cover or elastic cover of the control body can be arranged.
  • the elastic cover is provided for example by a rubber molding or other made of elastic plastic component or formed thereby.
  • the operating body acts, for example, on the switch and the securing device.
  • the operating body expediently has at least one actuating projection, which acts on the securing device, in particular its actuating element.
  • the switch and / or the securing device are arranged in separate encapsulated housings.
  • the housings are preferably encapsulated against spray water and / or other environmental influences.
  • the already mentioned controls are arranged for example below protective films or covers.
  • the switch and / or the safety device are designed as a push-button or as a toggle switch.
  • a suction device 10 in the form of a mobile suction device is designed, for example, as a workshop vacuum or suction device for a construction site.
  • a sucker housing 11 of the suction device 10 is rollable on rollers 12 on a substrate. Furthermore, the suction device 10 can be grasped on a handle 20, so that it can be carried by an operator to the place of use.
  • a suction motor 13 for generating a suction flow T is arranged in the sucker housing 11.
  • the suction flow T is sucked through a suction inlet 15, for example, on a front wall 21 of the sucker housing 11, in the sucker housing 11, specifically in a dust collection chamber 14, in which separated from the suction flow T separated particles, for example dust, sawdust or the like can.
  • a filter 16 Downstream of the dust collection chamber 14, a filter 16 is arranged.
  • the filter 16 is disposed between a suction turbine 22 driven by a suction motor 13 and the dust collecting space 14.
  • the blown from the suction turbine 22 suction flow T flows as exhaust air stream U via an outflow opening 17 from the sucker housing 11.
  • the suction device 10 is used, for example, to suck dust, sawdust or other abrasion generated by a hand tool 90.
  • the hand tool 90 for example a grinding device, has a drive motor 91 for driving a tool 92.
  • the tool 92 for example a grinding tool, milling tool or the like, a workpiece W to be edited. This creates chips, dust or the like of other dirt, which is sucked by the suction device 10.
  • a suction hose 94 can be connected, which is connectable to the suction inlet 15. The suction device 10 can thus suck on the basis of the suction flow T generated by the tool 92 dust.
  • the suction device 10 can supply the handheld power tool 90 with power.
  • a connecting line 96 is provided which can be inserted by means of a plug 97 into an electrical connection device 23 of the suction device 10.
  • plug contacts 98 of the plug 97 which is, for example, a safety plug, can be plugged into sockets 25, 26 of a socket 24 of the connection device 23.
  • the socket 24 is for example a safety socket.
  • the socket 24 may accordingly have protective contacts 27.
  • connection line 18 of the suction device 10 is provided at an electrical connection 28.
  • the connecting line 18 may be fixedly connected to the terminal 28.
  • connection 28 can also be provided for releasably connecting the connecting line 18 to the suction device 10, for example by means of a plug connection.
  • a line 33 is used for power supply and is connected via a switch assembly 50 to the socket 25.
  • the lines 31, 33 correspond for example to a neutral conductor or a ground conductor and a phase or vice versa, depending on the polarity in which the plug 19 is connected to a power supply network 100.
  • contacts 34, 36 in contacts 101, 103 of a power outlet 104 of the power supply network 100 insertable so as to connect neutral and phase of the suction device 10 with neutral and phase of the power supply network 100.
  • the connecting line 31 contains, for example, three wires for connection to the neutral conductor, protective conductor and phase of the power supply network 100.
  • the neutral conductor can also be referred to as a ground conductor.
  • the socket 24 When not in use, the socket 24 is closed by means of a lid 29.
  • the lid 29 is for example a hinged lid.
  • a switch 51 with switching contacts 52, 53 is connected to the lines 31, 33.
  • the branch lines 37, 38 can be brought into electrical connection with connecting lines 39, 40 of the suction motor 13.
  • the switch-on results from the fact that preferably an automatic switch 60 is provided, which is connected in the connecting lines 39, 40.
  • Switching contacts 61 of the automatic switch 60 are closed, for example, when a sensor 62 detects a current flow of a current Is to the connection device 23, and therefore the handheld power tool 90 is switched on.
  • a current Is for example via the line 31, which is detected by the sensor 62, for example, a shunt, and is reported via a line 63 to the automatic switch 60.
  • the automatic switch 60 then closes the switching contacts 61 in a manner known per se so that the suction motor 13 runs and the suction device 10 is in suction operation.
  • the automatic switch 60 may also have a tail, that is, even after a shutdown of the power tool 90, the suction motor 13 lags by a predetermined time.
  • the line 31 is electrically connected to a fuse 70 via a branch line 41.
  • the safety device 70 comprises a switching contact 71 which, in the closed state, hereinafter referred to as the release position F, connects the branch line 41 and thus the line 31 to a connection line 42 which leads to the socket 25 of the socket 24.
  • the switching contact 71 is connected to a counter-contact 71A electrically connected to the branch line 41 in the closed state, the release position F, in electrical contact, in the securing position S is not in electrical contact.
  • the switch contact 71 When the fuse device 70 assumes its fuse position S, the switch contact 71 is open, so that a supply voltage V between the lines 31, 33, for example, 230 volts, 110 volts or 120 volts AC or the like, no longer s.die sockets 25, 26, therefore that is no longer applied to the connection device 23.
  • the connection device 23 In the case of the switch arrangement 30, therefore, the connection device 23 is secured separately from the suction motor 13 by the securing device 70.
  • the safety device 70 switches off or on only the connection device 23, while the suction motor 13 is not secured.
  • a separate safety device 65 is provided for the suction motor 13. It can be provided, for example, that the safety device 65 is realized by the automatic switch 60.
  • the automatic switch 60 or the securing device 65 for example, an excessive current flow to the suction motor 13, overheating or the like sensory capture, for example, by means of a sensor 66 which detects the flow of current to the suction motor 13.
  • the sensor 66 is a shunt, for example.
  • This thermal sensor 67 is connected to the safety device 65 without wires or via radio and reports, for example, a thermal fault condition on the vacuum motor 13 to the automatic switch 60, so that this example, in an overheating of the suction motor 13 or when exceeding a threshold temperature of the suction motor 13 to a shutdown the securing device 65 leads.
  • the fuse device 70 is connected in series with the switch 51 or in dependence on the switch-on or switch-off position of the switch 51.
  • the safety device 70 or its mating contact 71A is connected for switching through its switching contact 71 via a branch line 141 on the output side to the switching contact 52, then, when it assumes its release position F, current through the connecting line 42 to the contact or to the socket 25 of To lead connecting device 23. If the switch 51 is closed or occupies its closed position E and also the securing device 70 assumes its release position F, so is the supply voltage V to the sockets 25, 26, thus the contacts of the connecting device 23, to.
  • both the suction motor 13 and the connection device 23 are secured by the securing device 70.
  • the line 37 is connected on the input side to the switching contact 71 of the fuse device 70, which is connected on the output side via a connecting line 242 to the input of the switch 51, in particular the switching contact 52.
  • the output of the switch 52 leads on the one hand to the connecting line 39 of the suction motor 13, on the other hand via a line 243 to the socket 24 and connecting device 23, in particular to the socket 25.
  • the safety device 70 thus secures both the suction motor 13 and the connection device 23 in the circuit 230.
  • the securing device 70 secures only the connection device 23 in each case.
  • the securing device 70 can be configured such that it allows the removal of power from the connecting device 23 that is only possible in addition to the power of the suction motor 13 and can be provided by the power supply network 100.
  • the fuse device 70 only allows a current of, for example, 10 amperes, which may flow via the connecting device 23, in the circuits 30, 130 .
  • the automatic switch 60 is also possible in the circuits 130, 230 to depending on the current flow (there may be arranged the sensor 62) or the line 243 to sense the flow of current through the connection device 23 to this Ways to turn on the suction motor 13 and thus the suction device 10 when a current flows through the connecting device 23.
  • An advantageous concept may provide that the securing device 70 is designed for electrically isolating and / or connecting the connection device 23 from the electrical supply voltage V, for example by moving the switching contact 71 from or to the mating contact 71A.
  • a multi-pole, in particular all-pole, switching concept can also be provided.
  • the neutral conductor another switching contact 171 of the fuse device 70 is electrically connected in a closed position with a mating contact 171A, so that the socket 26 is connected to the neutral conductor / ground conductor.
  • this is electrically isolated / removed from the mating contact 171A, in which case the socket 26 is not connected to the neutral conductor / ground conductor.
  • the switch arrangement 50 and the securing device 70 shown in the circuits 30, 130 and 230 can have different configurations, with two mechanical variants being presented below.
  • a pressure-control concept or pressure-actuation concept of the switch assembly 50 explained.
  • a switch arrangement 150 with a rotary operating concept can be used which has a safety device 70.
  • FIG. 1 shown in the suction device 10 ie the suction device 10 can be selectively actuated based on the switch assembly 50 or 150 and has the respective associated safety device 70.
  • the suction device 10 of course one of the switch assemblies 50 or 150.
  • the internal interconnection or assignment of the switch assembly 50 to the connecting device 23 and / or the naturally aspirated motor 13 can each of the variants according to FIGS. 5, 6 and 7 or other variants, which are not shown here in detail.
  • the switch 51 with its switching contacts 52, 53 can be actuated by means of an actuating element 55 between the switch-off position A and the switch-on position E.
  • the switch 51 is a key switch which remains bistable in the on position E or the off position A when it is operated by means of a control element 80.
  • the operating element 80 has an operating body 81 on which actuating projections 82, 83 are arranged.
  • the operating body 81 is - as shown by a double arrow - linear actuated along an actuating axis BA, wherein the actuating element 55, the arranged in a housing 54 of the switch 51 switching contacts 52, 53 actuated between the two switching positions E and A.
  • connection contacts 56, 57 of the switch 51 to which, for example, the connection lines 39, 40 on the one hand and the branch lines 37, 38 on the other hand are connected, electrically connected to each other, so that the supply voltage V output side contacts the switch 51.
  • the securing device 70 is also adjustable from the securing position S into the release position F.
  • the actuating projection 83 which projects in front of the operating body 81, acts on an actuating element 75 of the securing device 70.
  • the actuator 50 is mounted linearly displaceable on a guide 73 parallel to the actuating axis BA.
  • the guide 73 is arranged on a housing 74 in which the switching contact 71 is located.
  • terminal contacts 76, 77 are further provided, for example, to connect the branch line 41 and the connecting line 42 to the securing device 70.
  • the securing device 70 further has a schematically illustrated, for example, a latch having locking arrangement 78 for locking, for example, the actuating element 75 in the release position F, as in FIG. 4 shown on.
  • a latch having locking arrangement 78 for locking, for example, the actuating element 75 in the release position F, as in FIG. 4 shown on.
  • the actuating element 75 is thereby locked by the latching arrangement 78, so that it remains in the release position F even when the actuating element 80 is released or moved in the direction of the switch-off position A of the switch 51, see FIG FIG. 4 , In this case, a distance between the actuating element 75 and the actuating projection 83 is present.
  • the actuating projection 82 is fixedly connected or coupled to the actuating element 55, For example, locked, glued or screwed.
  • the actuating element 80 respectively assumes the position of the actuating element 55 and thus of the switch 51, that is to say, for example, the closed position E (FIG. FIG. 3 ) or the switch-off position A ( FIGS. 2, 4 ).
  • the switch 51 has, for example, a spring which acts counter to the force P.
  • the switch 51 is bistable between the closed position E and the open position A. The respective position corresponds directly with the position of the control element 80, which is fixedly connected to the switch 51.
  • the arrangement according to Figures 2-4 is optimally protected against environmental influences and also easy to produce.
  • the switch 51 and the securing device 70 are held on a holder 43, for example.
  • the switch 51 and the safety device 70 are separate from each other components, which on the one hand facilitates the assembly, but on the other hand also in the event of a malfunction or a defect facilitates repair. For example, the only defective component 51 or 70 must be replaced.
  • the holder 43 comprises, for example, a holding housing 44, which may be formed integrally with the nipple housing 11 or may also constitute a separate component.
  • a holding housing 44 On the holding housing 44 receptacles 45, 46 are provided for the switch 51 and the securing device 70.
  • the recordings 45, 46 are for example plug-in recordings.
  • the holder 43 has latching lugs 47 at its one longitudinal area, at which the switch 51 and the safety device 70 can be inserted past in a plug-in direction I ( FIG. 3 ).
  • the locking lugs 47 spring thereby transversely to the direction of insertion I to the outside. But it is also possible to insert the switch 51 and / or the securing device 70 against the insertion direction I, according to the force P in the plug-in receptacles 45, 46.
  • the retaining projections of the locking lugs 47 must not be latching or resilient.
  • locking lugs 47 and functioning components in this case can form solid retaining projections.
  • a receiving area 48 for the operating element 80 is provided.
  • the receiving area 48 supports the operating element 80 linearly in a receiving space 49.
  • the receiving space 49 is closed by a covering device 85.
  • the covering device 85 has, for example, a foil cover or elastic cover 86 which closes the receiving space 49.
  • the film cover or elastic cover 86 is opposite to a control surface 84 of the control body 81.
  • the foil cover 86 may also have a relatively large thickness.
  • the film cover 86 may also be formed as a rubber molding or as an elastic cover.
  • the covering device 85 has a holder section 87 which, for example, bears against the receiving region 48 of the holding housing 44 on the outside and covers it.
  • the covering device 85 expediently has protrusions 88 or connecting section 88 for producing a sealed connection with the sucker housing 11, for example a front wall section 21A into which the covering device 85 is inserted.
  • a switch 151 functionally similar in electrical terms to the switch 51, also has switching contacts 52, 53 and connection contacts 56, 57. For clarity, connection contacts 57A, 56A are still shown, since the switch 151, like the switch 51, has two electrical inputs, two electrical outputs and two switching contacts in order to switch all poles.
  • An actuating element 155 of the switch 151 is rotatably mounted about a rotation axis D.
  • the actuating element 155 for example a pivot pin which projects in front of the housing 154 of the switch 151, is rotatable about the axis of rotation D. and fixedly connected to a rotational drive portion 184 of a control element 180.
  • the operating element 180 has an operating projection 182, for example in the manner of a knob, which protrudes in front of a base body 181, which for example has a plate shape or shield shape, of the operating element 180.
  • An actuating projection 183 is formed on a region of the base body 181 opposite the actuating projection 182 in order to actuate the securing device 70.
  • the operation projection 183 has an operation gate 185 for actuating the operation member 75.
  • the operating element 180 starting from the open position (A) in opposite directions of rotation (right and left) for switching the switch 151 for automatic operation or continuous operation is actuated and in each of the directions of rotation of the actuator 75 from the securing position S. can press in the release position F.
  • the suction motor 13 In automatic mode, the suction motor 13 only runs when current flows through the connection device 23.
  • the safety device 70 operates, for example, thermally and / or in the event of a fault current and / or if a current flow via the connecting device 23 exceeds a predetermined amount.
  • corresponding release means and measuring means for example between the connection contacts 76, 77 of the securing device 70 are effective.
  • both switch assemblies 50, 150 a similar actuation concept can be seen.
  • the control element 80, 180 By adjusting the control element 80, 180 from one of the switch-off position A of the switch 51, 151 associated position in the direction of one of the closed position E of the respective switch 51, 151 associated position simultaneously securing device 70 is actuated by the securing position S in the release position F.
  • the fuse 70 trips, i. Moves from the release position F in the securing position S, at least one renewed key press or a renewed operating action in both switch assemblies 50, 150 is necessary, for example by renewed, conscious pressing on the control element 80 or a renewed rotation of the control element 180.
  • the operator is therefore aware that the fuse has fired. Thus, he can specifically fix an error situation, for example, that the hand tool 90 use in an adequate, less power-consuming work area.
  • the safety device 70 In a function as a residual current circuit breaker, the safety device 70, for example, perform a current comparison between the lines 31, 33.
  • the securing device 70 secures both the current flow Im via the suction motor 13, and the current flow Is via the connecting device 23 from.
  • the total current Iges flowing via the line 33 initially flows via the safety device 70 with the switching contact 71, so that the securing device 71, the exceeding of a predetermined total current, for example, 16 amps at 230 volts AC voltage in the backup position S.
  • the safety device 70 thus triggers.
  • a current Is supplying the connection device 23 can flow via a line 343 between the securing device 70 and, for example, the socket 25.
  • the switching contact 52 is connected via the already explained line 242.
  • the motor current Im supplying the suction motor 13 can flow via the line 242.
  • the total current or total current Iges is thus formed by the sum of the two currents Im and Is, ie the sum of motor current and current for the connection device 23.
  • the switch arrangement 50 is connected between the connection 28 and the securing device 70, so that the current flowing via the suction motor 13 and the connection device 23 can be switched centrally via the switch arrangement 40.
  • the connecting line 39 is connected to the power supply of the suction motor 13 with the motor current Im as well as the connecting line 42 to the output of the safety device 70.
  • the connecting line 42 of the connecting device 23 supplying current Is flowing, which in turn forms the total current Iges together with the motor current Im, which is secured by the fuse device 70 as a whole.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)

Claims (16)

  1. Appareil d'aspiration pour la séparation de particules d'un courant d'aspiration, avec un moteur d'aspiration (13) pour la génération du courant d'aspiration et avec un boîtier d'aspirateur (11), dans lequel le moteur d'aspiration (13) et un espace collecteur de poussières (14) pour la collecte des particules séparées du courant d'aspiration sont agencés, dans lequel au niveau du boîtier d'aspirateur (11) un dispositif de raccordement (23) électrique, en particulier une prise, est agencé pour la mise à disposition d'une tension d'alimentation électrique (V) pour un consommateur électrique, en particulier une machine-outil à main, dans lequel l'appareil d'aspiration (10) présente un agencement de commutateur (50) avec un commutateur électrique (51) qui est réglable au moyen d'un élément de commande (80) actionnable manuellement entre une position de désenclenchement (A), dans laquelle le moteur d'aspiration (13) ne peut pas être enclenché, et une position d'enclenchement (E), dans laquelle le moteur d'aspiration (13) est ou peut être enclenché, caractérisé en ce que l'agencement de commutateur (50) présente un dispositif de sécurité (70) séparé du commutateur (51) pour le dispositif de raccordement (23) électrique qui commute lors d'au moins une condition erronée électrique au niveau du dispositif de raccordement (23) d'une position de libération (F), dans laquelle la tension d'alimentation (V) est appliquée au dispositif de raccordement (23), à une position de sécurité (S), dans laquelle la tension d'alimentation (V) est déconnectée par le dispositif de raccordement (23), et que le dispositif de sécurité (70) est actionnable au moyen de l'élément de commande (80) entre la position de sécurité (S) et la position de libération (F), en particulier de la position de sécurité (S) à la position de libération (F).
  2. Appareil d'aspiration selon la revendication 1, caractérisé en ce que le commutateur et le dispositif de sécurité (70) sont agencés dans un boîtier commun et/ou forment un dispositif d'un seul tenant et/ou que le dispositif de raccordement présente un contact de protection (27) non influençable en particulier par le dispositif de sécurité (70) et/ou est prévu et configuré pour la mise à disposition d'une tension alternative par exemple de 230 volts, de 110 volts ou de 120 volts.
  3. Appareil d'aspiration selon la revendication 1, caractérisé en ce que le commutateur (51) et le dispositif de sécurité (70) sont agencés en tant qu'éléments de commutation séparés l'un de l'autre et/ou dans des boîtiers séparés l'un de l'autre, dans lequel il est prévu avantageusement que l'appareil d'aspiration présente un support pour le dispositif de sécurité (70) et le commutateur (51), dans lequel le support présente des logements, en particulier des logements d'encliquetage et/ou des logements d'enfichage, pour la réception du commutateur et du dispositif de sécurité (70).
  4. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de sécurité (70) présente un agencement de retenue, en particulier un agencement d'encliquetage (78), pour la retenue du dispositif de sécurité (70) et/ou d'un d'élément d'actionnement (75) du dispositif de sécurité (70) dans une position associée à la position de libération (F).
  5. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de commande (80) est réglable sans actionner le dispositif de sécurité (70) de la position de libération (F) à la position de sécurité (S) d'une position associée à la position d'enclenchement (E) du commutateur (51) à une position associée à la position de désenclenchement (A) du commutateur (51).
  6. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce que le commutateur (51) et le dispositif de sécurité (70) présentent respectivement un élément d'actionnement (55, 75) qui est actionnable par l'élément de commande (80) et/ou que l'élément de commande (80) est fixement couplé au commutateur (51) de sorte que lors d'un réglage de l'élément de commande (80) le commutateur (51) soit actionné à force entre la position de désenclenchement (A) et la position d'enclenchement (E).
  7. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un passage libre est présent entre d'une part l'élément de commande (80) et d'autre part le commutateur (51) et/ou le dispositif de sécurité (70) de telle manière que l'élément de commande (80) soit réglable sans actionnement du commutateur (51) ou du dispositif de sécurité (70).
  8. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce que le commutateur (51) est configuré en tant que bouton-poussoir qui est réglable au moyen d'actionnements de poussée successifs de la position de désenclenchement (A) à la position d'enclenchement (E) et de la position d'enclenchement (E) à la position de désenclenchement (A), et/ou que le dispositif de sécurité (70) est réalisé en tant que bouton-poussoir qui est actionnable par un actionnement de poussée de la position de sécurité (S) à la position de libération (F), et/ou qu'une distance est présente entre le ou un élément d'actionnement (75) du dispositif de sécurité (70) et l'élément de commande (80) lorsque le dispositif de sécurité (70) occupe la position de libération (F) et l'élément de commande (80) est réglé dans une position associée à la position de désenclenchement (A) du commutateur.
  9. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un passage libre est présent entre l'élément d'actionnement (75) du dispositif de sécurité (70) et le ou un élément de commande (80) de telle manière que l'élément de commande (80) soit actionnable sans actionner l'élément d'actionnement (75) du dispositif de sécurité (70) de la position de libération (F) à la position de sécurité (S) d'une position associée à la position d'enclenchement (E) du commutateur (51) dans une position associée à la position de désenclenchement (A) du commutateur (51).
  10. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de commande (80) présente une coulisse d'actionnement (185) et/ou un biais d'actionnement (186) et/ou une saillie d'actionnement (83 ; 183) pour l'actionnement du dispositif de sécurité (70), en particulier d'un élément d'actionnement (75) du dispositif de sécurité (70), de la position de sécurité (S) à la position de libération (F).
  11. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de sécurité (70) est commuté seulement pour la protection du dispositif de raccordement (23) ou pour la protection du dispositif de raccordement (23) ainsi qu'au moins un autre composant électrique, en particulier du moteur d'aspiration (13), de l'appareil d'aspiration et/ou que le dispositif de sécurité (70) présente pour la commutation de la tension d'alimentation (V) pour le dispositif de raccordement (23), en particulier exclusivement, un contact de commutation (71) qui est réglable entre une position de fermeture électrique dans laquelle la tension d'alimentation (V) est appliquée au dispositif de raccordement (23), et une position d'ouverture électrique dans laquelle la tension d'alimentation (V) n'est pas appliquée au dispositif de raccordement (23).
  12. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il présente une conduite de raccordement (18) pour le raccordement à un réseau d'alimentation électrique et/ou un agencement d'accumulateur d'énergie électrique ou une interface de raccordement pour un agencement d'accumulateur d'énergie pour la mise à disposition d'énergie électrique pour le dispositif de raccordement (23) électrique et/ou l'appareil d'aspiration et/ou un dispositif de commutation (60) pour l'enclenchement et le désenclenchement du moteur d'aspiration (13) en fonction d'une utilisation du dispositif de raccordement et/ou d'un flux de courant par le biais du dispositif de raccordement (23).
  13. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce que le commutateur (51) est actionnable au moyen de l'élément de commande (80) dans la position de désenclenchement (A) ainsi que dans deux positions d'enclenchement (E), dans lequel une des positions d'enclenchement est associée à un mode continu du moteur d'aspiration et l'autre position d'enclenchement à un mode du moteur d'aspiration (13) en fonction d'une utilisation du dispositif de raccordement (23) et le dispositif de sécurité est actionnable au moyen de l'élément de commande lors de du réglage du commutateur (51) de la position de désenclenchement (A) à chacune des positions d'enclenchement de la position de sécurité (S) à la position de libération (F).
  14. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de sécurité (70) présente un disjoncteur de protection thermique commutant lors du dépassement d'une valeur seuil thermique en direction de la position de sécurité (S) et/ou un disjoncteur de protection à courant de défaut et/ou un disjoncteur de protection de courant commutant lors du dépassement d'une valeur de courant maximale au niveau du dispositif de raccordement (23) en direction de la position de sécurité (S).
  15. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de commande (80) est logé de manière rotative et/ou réglable linéairement et/ou présente au moins un commutateur à film ou un recouvrement à film (86) ou un recouvrement élastique et/ou que le dispositif de raccordement (23) est relié électriquement par le biais de dispositif de sécurité (70) à une conduite de raccordement (18) ou un raccordement (28) pour une conduite de raccordement (18) de l'appareil d'aspiration (10) pour le raccordement à un réseau d'alimentation électrique et/ou à une interface de raccordement pour un agencement d'accumulateur d'énergie électrique, en particulier hormis le dispositif de sécurité (70) sans composants électriques ou électroniques intercalés, et/ou que le dispositif de sécurité (70) est configuré pour la liaison du dispositif de raccordement (23) à un conducteur neutre ou conducteur de masse dans la position de libération (F) et pour la séparation du dispositif de raccordement (23) du conducteur neutre ou conducteur de masse dans la position de sécurité (S).
  16. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de sécurité (70) est configuré et/ou agencé pour la protection d'un courant total (Iges) qui comprend un courant (Is) passant par le biais du dispositif de raccordement (23) et au moins un courant nécessaire au fonctionnement de l'appareil d'aspiration (10), en particulier un courant (Im) passant par le biais du moteur d'aspiration (13), et/ou tous les courants passant par le biais d'un raccordement (28) de l'appareil d'aspiration (10) pour l'alimentation en énergie de l'appareil d'aspiration (10) ainsi que du dispositif de raccordement (23) pour le consommateur électrique.
EP17200199.2A 2016-11-07 2017-11-06 Appareil d'aspiration pourvu d'un dispositif de raccordement Active EP3320822B1 (fr)

Applications Claiming Priority (1)

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DE102016121218 2016-11-07

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CN109008797B (zh) * 2017-06-09 2024-07-02 天佑电器（苏州）有限公司 吸尘器

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Publication number Priority date Publication date Assignee Title
US6222285B1 (en) * 1999-09-07 2001-04-24 Shop Vac Corporation Intelligent switch control circuit
DE102009015642A1 (de) 2009-03-21 2010-09-30 Festool Gmbh Sauggerät mit Funktionsmodul
DE202011003605U1 (de) * 2011-03-05 2011-05-05 Festool Gmbh Sauggerät mit einer Steckdose
DE202012003282U1 (de) * 2012-03-27 2012-04-18 Electrostar Gmbh Sauger

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DK3320822T3 (da) 2019-06-24
EP3320822A1 (fr) 2018-05-16

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