EP3545805B1 - Suction device with a suction device transmitter and external communication device for same - Google Patents

Description

The invention relates to a suction device for separating particles from a suction flow, according to the preamble of claim 1.

Such a suction device is, for example, off US 2010/0199453 A1 known.

A suction device according to DE 10 2009 015 642 A1 sucks in particles via a suction hose, the suction hose in turn being able to be connected to an electric hand machine tool in order to suck up dust or particles generated by this hand machine tool when machining a workpiece, for example sawing or drilling.

Usually a suction device listens, so to speak, whether its performance is required. For example, a power cord of the hand machine tool can be plugged into a socket of the suction device. A current sensor measures whether the hand machine tool draws current via the socket, which indicates that the hand machine tool is in operation. The suction device then switches on. In this way, the hand machine tool can influence the operation of the suction device. In practice, however, problems arise every now and then if, for example, a filter of the suction device is clogged or clogged in such a way that the suction of the particles, which the hand machine tool generates, is no longer satisfactory.

It is therefore the object of the present invention to improve the usability of a suction device.

To achieve the object, a suction device according to the technical teaching of claim 1 is provided.

The external communication device according to the invention for interaction with a hand machine tool and communication with the suction device communication device of the suction device according to the invention forms part of the hand machine tool or a module that can be connected to the hand machine tool and is designed according to the technical teaching of claim 8.

The external communication device can also be arranged, for example, at an end of a suction hose remote from a housing of the suction device. The suction hose is connected to the hand machine tool, so that the external communication device, e.g. configured as a module, is also connected to the hand machine tool. For example, it can be provided that the external communication device and the suction device communication device communicate with one another wirelessly or wirelessly. A line and / or further wireless communication can then be provided between the external communication device and the hand machine tool, for example its control device.

It is a basic idea of the present invention that the suction device influences the hand machine tool, so to speak, which has an external communication device for this purpose, for example there outputs a message about a current operating state of the suction device and / or the external device, the hand machine Machine tool, controls directly.

For example, it is possible for the control signal to switch off the hand machine tool or to reduce its power when the power of the suction device falls below a certain limit value, for example because a filter of the suction device is clogged or the like.

The message signal is suitable, for example, for activating an output device on board the external communication device and / or the hand machine tool in order to indicate an operating state of the suction device. So if, for example, the suction power is not sufficient, for example an illuminated display, in particular an LED, can be activated. If the operating state of the suction device is suitable for safe operation and / or proper suction of the particles in the work area of the hand machine tool, a green LED lights up, for example, otherwise a red LED. If the operating status of the suction device is critical, a yellow LED can light up.

A preferred embodiment of the invention provides that the suction device communication device can also receive messages or signals from the external communication device. Thus, not only can the suction device influence the hand machine tool or send messages to it, but also, conversely, the hand machine tool can influence the suction device, for example to control it to output information from the hand machine tool and / or to influence an operating state of the suction device . For example, the hand machine tool can increase, decrease or the like the suction power.

The external communication device expediently communicates directly with a control device of the hand machine tool or forms part of such a control device. For example, the communication can provide that signals or information received by the hand machine tool control device are sent from the external communication device to the suction device. In the opposite direction, the external communication device forwards information, messages, signals or the like received from the suction device in the direction of the control device and / or controls the control device directly, for example to increase or decrease a speed of a drive motor of the hand machine tool, to block the Drive motor if the suction power of the suction device is too low, or the like.

An advantageous method provides that the suction device communication device sends at least one identification code and / or one operating parameter to the external communication device and / or receives at least one identification code and / or one operating parameter from the external communication device, and that the suction device and / or the hand machine tool can execute at least one function based on the at least one identification code received in each case and / or the operating parameter received in each case.

This is based on the idea that the hand machine tool logs on to the suction device and / or vice versa and, in this context, sends an identification code and / or an operating parameter to the respective other device. Based on this information, an initialization is possible in such a way that, for example, the suction device then sets its operating mode so that it matches the hand machine tool. If, for example, the tool is a hand saw that produces a large amount of particles when sawing into a workpiece, the vacuum cleaner will set a correspondingly higher suction power. The cleaning of a filter of the suction device can then take place correspondingly more frequently, that is to say that a cleaning interval, for example with a circular saw, is significantly shorter than, for example, with a jigsaw, which generates fewer particles during its operation. At this point it should be noted that the hand machine tool can of course be designed differently, for example, it can comprise a drill, a saw, in particular a circular saw, plunge-cut saw or the like.

It is possible that the device receiving an operating parameter or an identification code, i.e. the suction device or the hand-held machine tool, adjusts its subsequent functioning based on the received identification code or the received operating parameter, so that, for example, the suction device adjusts itself to the hand-held machine tool and accordingly, for example, does not allow the suction power to drop below a minimum or to rise above a maximum. If, for example, sensitive surfaces are to be processed with the hand machine tool, e.g. a grinding or polishing machine, too high a suction power can be a hindrance. On the other hand, insufficient suction power, a clogged filter or the like on the part of the suction device can also lead to undesirable adverse effects on the environment, i.e. that the suction device does not suck up particles from the work area of the hand machine tool to a sufficient extent. This can in itself lead to health problems for the user. The invention can provide a remedy here in that the suction device virtually detects which hand machine tool is connected and accordingly sets its operating parameters or working parameters.

The measures of the dependent claims proposed in connection with the method according to the invention can of course also be reflected in a corresponding configuration of the suction device, the suction device communication device and the external communication device. For example, these devices have suitable operating means for carrying out the respective steps, for example a microprocessor and suitable programs or the like.

Some steps according to the invention are explained below:
An advantageous measure provides that the suction device or the hand-held machine tool uses the received operating parameters and / or the identification code to determine whether or under what conditions an operation of the pairing consisting of the suction device and the hand-held machine tool, which corresponds to at least one criterion, is possible. The criterion can be, for example, a safety criterion, an environmental criterion, an occupational safety criterion or the like. If, for example, the suction device cannot suck up particles to a sufficient extent, it is possible that the suction device and / or hand machine tool will block later operation. This protects the user.

The suction device and / or the hand-held machine tool expediently have an output device or a plurality of output devices in order, for example, to output at least one operating parameter and / or at least one identification code and / or the above at least one criterion. The output means can of course also advantageously indicate whether and under what conditions the operation of the pairing consisting of suction device and hand-held machine tool that fulfills the at least one criterion is possible. The operator thus receives feedback as to which information is exchanged and / or how later operation is possible. If, for example, the suction device and the hand-held machine tool match one another, a, for example, green illuminated display or the like can be activated as an optical output means. Such an output means can be provided on the hand machine tool and / or on the suction device, for example on the suction device communication device and / or on the external communication device.

A preferred embodiment of the invention provides that the suction device and / or the hand machine tool are designed in this way are that they block operation with the other device if the at least one criterion cannot be met. If, for example, the suction device detects that the hand machine tool would produce too many particles that cannot then be extracted, the suction device can block its operation. The hand machine tool can also block operation if the criterion cannot be met or is not met.

If the operation of the suction device and hand machine tool is possible, but certain operating or functional parameters are necessary so that optimal operation is possible, it is advantageous if the suction device and / or the hand machine tool are designed to include one or more to set several parameters for a function of the suction device or the hand machine tool according to the at least one criterion. Thus, for example, the suction device can adapt its suction power to the hand machine tool. The hand-held machine tool is also advantageously designed such that it can, for example, only be used in such a speed range or working range that the suction device is still able to suction off particles to an extent corresponding to the criterion. Of course, a cleaning function for cleaning a filter of the suction device can also be set on the basis of the working parameter, so that the at least one criterion is met.

At this point it should be noted that one embodiment of the invention provides that the hand machine tool sets its own operating parameters based on the data received from the suction device, that is, for example, defines a speed range, or the suction device uses the data received from the hand machine tool to set its own operating parameters , for example cleaning intervals, suction power and the like, adjusts. However, it is also possible for one device to modify the operating parameters of the other device and / or to send corresponding control signals. Thus, for example, the suction device can send operating parameters to the hand machine tool which it specifies for the hand machine tool on the basis of the received identification code of the hand machine tool or the received operating parameters of the hand machine tool.

The identification code can be designed as such an identification code that it uniquely identifies the suction device or the hand machine tool that can be derived from the identification code operating data of the hand machine tool or suction device, for example performance data, performance requirements or the like. For example, the identification code can indicate the respective type of suction device or hand machine tool. However, a unique identifier that only appears once worldwide, so to speak, is possible. Of course, the identification code can also be in several parts, so that it includes, for example, a type code of the respective device on the one hand, and a unique serial code or serial number on the other.

With regard to the at least one operating parameter, it is possible for it to be, for example, a machine tool operating parameter of the hand machine tool that represents an operating state that is possible or current during operation of the hand machine tool. For example, the operating parameter represents a maximum amount of particles typically or currently occurring during operation of the hand machine tool, a typical nature of the particles or the like.

An operating parameter assigned to the suction device expediently forms a suction device operating parameter which represents an operating state that is currently or possibly occurring during operation of the suction device. The suction device operating parameter or the suction device identification code can indicate, for example, a suction power of the suction motor and / or a maximum size of the suction flow and / or a still existing absorption capacity for particles in the dust collection space or in a filter within the dust collection space.

The suction device is expediently designed for setting at least one function of the suction device and / or the hand-held machine tool on the basis of the at least one identification code and / or the operating parameter. This can be a received or an identification code to be sent or a received or sent operating parameter.

For example, the suction device is designed to use the operating parameters received from the hand machine tool or the identification code to set its own function on the suction device itself, for example a suction power of the suction motor, a size of the suction flow, a cleaning function for cleaning a filter or the like.

The suction device is advantageously designed as a device controlling the hand machine tool. The suction device communication device is designed, for example, to send a control signal and / or message signal formed on the basis of the received operating parameter and / or on the basis of the received identification code to the external communication device, which is connected to the hand machine tool or forms part of the hand machine tool. With the help of the control signal, for example, a function of the Hand machine tool are controlled, for example the drive motor of the hand machine tool. The message signal is suitable, for example, for outputting information determined by the suction device communication device or the suction device, for example a warning. The aforementioned acoustic and / or optical output means are expedient for this purpose.

The suction device expediently has an output means arranged on the suction device, for example its housing, or on board the suction device communication device, for outputting information determined on the basis of the received operating parameter and correctly or the received identification code. For example, the suction device can indicate acoustically or optically when the hand machine tool can be operated together with the suction device. Of course, other information can also be output.

The external communication device can be designed, for example, as a component of the hand machine tool or as a module that can be connected to the hand machine tool. For example, the hand machine tool has a module slot into which the external communication device can be plugged. The external communication device can, for example, also form part of an energy storage module, for example a battery module, for supplying electrical energy to the hand machine tool.

The external communication device is expediently designed for setting at least one function of the suction device or the hand-held machine tool or both on the basis of the at least one identification code or the operating parameter or both. The external communication device can perform the function, for example, on the basis of a received or on board the Set hand machine tool existing operating parameters as well as using an identification code received from the suction device or the identification code of the hand machine tool.

The external communication device is expediently for sending a control signal formed on the basis of the received operating parameter or the received identification code for setting at least one function of the suction device, for example for setting a suction power of the suction motor, a size of the suction flow or volume flow, intervals of the cleaning function of the suction device or the like , designed. It is also advantageous if the external communication device is designed to send a message signal to the suction device communication device for outputting information, for example a notice. This information is determined, for example, by the external communication device or the suction device or both in cooperation with one another.

The external communication device is advantageously designed to receive an identification code or the operating parameter from a control device of the hand machine tool. The control device of the hand machine tool thus determines the identifier or the operating parameter and sends this to the external communication device for further processing. In the opposite direction, it is also possible for the external communication device to communicate with the control device of the hand machine tool, ie it forwards an identification code received from the suction device or an operating parameter received from the suction device to the control device of the hand machine tool.

The suction device according to the invention is expediently a mobile suction device. The suction device preferably has rollers for driving on a ground. Of course, the suction device could also be a portable suction device that has rollers or even has no rollers. The suction device according to the invention is expediently not designed as a self-sufficient suction device working in the manner of a robot. The operator can take the suction device with him and use it on site. Furthermore, a suction hose can expediently be connected to the suction device.

It is preferred if no line connection is necessary between the suction device and the external communication device. The external communication device and the suction device communication device can accordingly transmit one or more operating parameters and / or one or more identification codes and / or control signals and / or message signals or the like from the suction device to the hand tool and / or vice versa.

Lineless is to be understood as meaning that no electrical or optical line is necessary between the communication devices. In another formulation one could also say wirelessly. Wired can accordingly also be understood as wired if, for example, there is an electrical wire connection between the communication devices. An optical conductor is also possible as a line. The at least one line between the communication devices can be arranged on or in a suction hose between the hand machine tool and the suction device.

It is possible that a line interface is provided between the hand machine tool or the external communication device and the suction device communication device, which is only used as part of an identification procedure in which the two devices adjust to one another, so to speak, or operation with one another is enabled and the wired interface is then separated again so that the hand machine tool can be moved freely from the suction device.

A line connection between the suction device and the hand machine tool can run, for example, in a suction hose that connects the two devices to one another.

In the case of wireless communication, the external communication device can be moved freely, for example in order to switch the suction device on or off or to control its output, for example to increase or decrease the suction power. The transmission of messages is also simplified wirelessly. The wireless transmission concept is possible from the external communication device to the suction device or vice versa, or both. It goes without saying that wired transmission between the suction device and the external communication device is also possible in one direction.

A control signal or message signal can for example only be a single electrical or optical pulse, for example a switch-on signal and a switch-off signal, but also a pulse sequence or the like. A respective signal preferably also includes more complex messages or telegrams which also include more extensive information, for example configuration data, parameterization data, identification data, operating parameters or the like.

In the case of information that is transmitted or can be transmitted wirelessly, for example the identification code or the operating parameter, the control signals and / or message signals it is, for example, radio signals or optical signals or both. For example, the communication means of the suction device communication device and the external communication device can include, for example, optical communication means or radio communication means. The communication interface of the suction device communication device and / or the external communication device can comprise a WLAN, for example. For example, infrared signals are possible. However, a line of sight is not necessary if the wireless reporting signals and / or control signals are or include radio signals. It is preferred if the radio signals can only be received in a close range of, for example, up to a maximum of 2-8 m from the suction device, so that interference from other external communication devices is not to be feared. As a rule, such a close range is also sufficient, since the suction device is also required at the location of the external communication device where dust particles occur.

The suction device communication device can be designed for wireless and / or wired communication with further components of the suction device. The suction device communication device receives information from a control device of the suction device, for example, which it sends as a message signal or control signal to the external communication device. It is also possible that the suction device communication device forwards message signals and / or control signals received from the external communication device in a wired or wireless manner to another component, for example the aforementioned control device, of the suction device. Of course, the suction device communication device can also have intelligence going beyond this or comprise further components, for example at least one electrical actuating or switching element for setting or switching, for example, the suction motor and / or at least one sensor or a measuring device for detecting an operating state of the suction device.

The suction device communication device can form an integral part of the suction device.

The suction device communication device preferably forms a suction device communication module or comprises a suction device communication module in which, for example, the suction device receiver and / or the suction device transmitter is arranged. A module receptacle for the suction device communication module is expediently provided on the suction device housing, with which the suction device communication module can be detachably connected. For example, it is a module slot into which the suction device communication module can be inserted.

The module receptacle expediently comprises electrical module contacts for the electrical connection of the suction device communication module with electrical components of the suction device arranged in the suction device housing. However, it is also possible for the suction device communication module to communicate wirelessly with the other components inside the suction device housing. In this embodiment, wireless communication means, for example a transmitter and a receiver, are expediently provided with which the suction device communication module communicates with at least one electrical component of the suction device communication device arranged in the suction device housing. For example, the suction device communication module transmits the control signals, which it has received wirelessly from the control device, to the electrical component arranged in the suction device housing or generates a suction device communication signal therefrom. This electrical component is for example an electrical switch, a power control or the like.

The suction device according to the invention expediently comprises a charging device for charging an electrical energy storage module of a hand machine tool. The charging device has electrical charging contacts for providing a charging voltage for the electrical energy storage module.

The suction device communication device expediently forms part of the charging device.

A so-called learning function is preferred, in which the external communication device and the suction device communication device of the suction device communicate with one another to form a transmitter-receiver pair. As part of this learning process, also known as the teach process, it is ensured that only external transmitters and suction device receivers or external receivers and suction device transmitters that are assigned to one another communicate with one another. For example, the suction device communication device and the external communication device communicate transmission parameters and / or authentication parameters and / or access codes or the like as part of a registration procedure. It is possible, for example, for an operator to press a button on the external communication device and / or the suction device communication device so that they enter into a communication relationship in a manner known per se.

The suction device expediently forms part of a system that also includes the external communication device. The external communication device can, however, also be a separate one, for example already in a factory Hand machine tool or its energy storage module can be built-in external communication device.

The following explanations relate to an external communication device which, for example, forms part of a system which, in addition to the suction device, also includes the external communication device, or to an external communication device, which can be used as a separate communication module, for example for retrofitting an energy storage module or a hand -Machine tool is designed or is intended for mounting on a suction hose. Furthermore, the external communication device can also form an integral part of a hand-held machine tool or an energy storage module. It can also be designed as an intermediate module that can be installed between an energy storage module and a hand machine tool.

The external communication device preferably has at least one sensor and is designed to send the control signals for activation, for example to switch on or switch off the suction motor, as a function of sensor signals from the sensor.

There are many options when choosing the sensor:
For example, the at least one sensor is formed by a position sensor or comprises a position sensor which is suitable for detecting a position of the external communication device. In the event of a change in position, the position sensor can, for example, send a corresponding start signal, whereupon the external communication device sends the wireless control signal for switching on the suction motor.

It is also possible that the at least one sensor comprises a movement sensor for detecting a movement of the external communication device.

An electrical sensor, which comprises an electrical current flow to an electrical device operated together with the suction device, and / or a voltage sensor for detecting an electrical supply voltage applied to the device are also advantageous. The external communication device thus generates, for example, when the external communication device vibrates (for example when the hand machine tool is running) a control signal for switching on the suction motor. Even if a work area lighting is switched on, the current flow of which is recorded by the current sensor, the suction motor can be switched on in this way.

The suction device is expediently provided for cooperation with a hand machine tool which has a drive motor for driving a tool. The drive motor is, for example, a pneumatic motor or an electric motor. The suction device is intended for suctioning off particles generated during operation of the hand machine tool. The at least one sensor is advantageously designed to detect an operation of the drive motor or the hand machine tool. The suction device forms, for example, a component of such a system, which comprises the suction device and the hand machine tool.

In connection with such a hand machine tool, it is advantageous if the at least one sensor has a current sensor for detecting an electrical current flow to an electrical consumer of the hand machine tool when it is in operation, for example to the drive motor of the Hand machine tool or a work area lighting of the hand machine tool, and / or a voltage sensor for detecting a supply voltage applied to the electrical consumer that is active when the hand machine tool is in operation. So when the drive motor is operated, this is recognized by the sensor and accordingly wireless control signals are generated by the external communication device for switching on or for increasing the power of the suction motor.

Of course, a speed sensor can also be provided which detects a speed of the drive motor. If the drive motor does not rotate, the external communication device sends a corresponding control signal, whereupon the suction device communication device and / or the suction device receiver or the suction device switching device on board the suction device switches off the suction motor. A performance-dependent control is also possible. If, for example, the drive motor of the hand machine tool rotates faster, the tool works correspondingly faster, so that more particles have to be conveyed away. Then the suction device communication device controls the suction motor of the suction device advantageously to a higher power. However, it is also possible that the opposite happens, i.e. that, for example, in the event of a drop in speed, the power of the suction motor is increased because then a correspondingly higher chip removal or similar other higher particle generation at the work site is to be feared, i.e. the suction device correspondingly more Should bring suction power.

It is also possible that the sensor, which is on board the hand machine tool, detects, for example, a magnetic field of the drive motor, that is to say comprises a magnetic sensor. The magnetic sensor can also be used to detect a switch position a switch of the hand machine tool can be provided with which the drive motor can be switched or its performance can be influenced.

The external communication device can also comprise an electrical contact or a position sensor for detecting a switch position of a switch of the hand machine tool, for example a push button, for switching or for power control of the drive motor.

The external communication device is expediently designed as an intermediate module that can be arranged between a housing of the hand machine tool and an energy storage module for the electrical power supply of the hand machine tool. Thus, a particularly simple embodiment is given in which a hand machine tool known per se can be used together with a likewise known energy storage module, but the interposed external communication device detects, for example, a current flow between the energy storage module and the hand machine tool and accordingly the wireless ones Control signals for switching on, switching off or for power control of the suction motor are generated. Of course, a different type of sensor-based detection of operation of the hand machine tool can also take place in this embodiment, for example detection of a vibration, a movement, a change in position or the like. Such an intermediate module can for example be plugged between existing contacts of the hand machine tool and the energy storage module and have its own intermediate module housing. In the intermediate module, form-fit contours or plug-in connection means are preferably provided which correspond to or match with corresponding form-fit contours or plug-in connection means of the hand machine tool or the energy storage module.

Another, preferred embodiment provides that the external communication device forms an integral part of a hand-held machine tool or an energy storage module for the electrical supply of a hand-held machine tool.

However, it is also possible that the external communication device is subsequently attached to an external device, for example an aforementioned energy storage module, to a hand machine tool or the like, or for example to the suction hose of the suction device. For this purpose, the external communication device preferably has fastening means, for example one or more straps, magnetic fastening means, latching connection means or the like.

It goes without saying that the external communication device can also, for example, be screwed and / or glued onto another component, for example the hand machine tool or an energy storage module for its electrical energy supply.

The external communication device can, for example, also be designed as an attachment that is placed on a pressure switch of a hand machine tool, or it can have such an attachment.

The external communication device preferably has an interface for wireless and / or wired communication of the hand machine tool, in particular with its control device, and / or a switching device for switching an electrical supply voltage of the hand machine tool. Thus, the communication device can, so to speak, switch off, switch on or control the power supply, alternatively also a compressed air supply, of the hand machine tool. This variant is particularly advantageous when the Communication device is arranged on board the energy storage module. The hand machine tool and the external communication device communicate, for example, via matching wireless interfaces, for example radio interfaces, with each other and / or have matching module contacts, so that wired or wired communication is possible.

For autonomous operation of the external communication device, it is advantageous if it has an electrical energy store, for example a battery, a rechargeable battery or the like. Furthermore, it is advantageous if it has a power generation unit, for example an electrical generator, which can be driven by the suction current, by movements of the external communication device or the like.

Figur 1

eine perspektivische Ansicht eines Systems umfassend ein Sauggerät sowie eine mit einem elektrischen Energiespeichermodul versehene Hand-Werkzeugmaschine in Gestalt einer Säge, insbesondere einer Stichsäge,

Figur 2

eine perspektivische Schrägansicht auf einen oberen Teil eines Saugergehäuses des Sauggeräts gemäß Figur 1, das eine Ladeeinrichtung aufweist,

Figur 3

das Saugergehäuse gemäß Figur 2, jedoch ohne Ladeeinrichtung, so dass eine Modulaufnahme sichtbar ist, etwa entsprechend einem Ausschnitt A in Figur 2,

Figur 4

die Ladeeinrichtung gemäß Figur 2, jedoch von dem Sauggerät entfernt,

Figur 5

Modul-Kontakte der Ladeeinrichtung gemäß Figur 4, etwa entsprechend einem Ausschnitt B in Figur 4,

Figur 6

eine Ansicht etwa entsprechend der Ansicht gemäß Figur 2, jedoch mit einem am an der Ladeeinrichtung angeordneten Energiespeichermodul, das in

Figur 7

von schräg oben dargestellt ist und in

Figur 8

an einer Hand-Werkzeugmaschine in Gestalt eines Schraubgeräts oder Bohrgeräts montiert ist,

Figur 9

ein elektrisches Schaltbild einer zur Verdeutlichung einer leitungslosen Ansteuerung des Sauggeräts gemäß Figur 1 und

Figur 10

ein elektrisches Schaltbild zur Verdeutlichung eines Ladekonzepts zum Aufladen eines elektrischen Energiespeichermoduls mithilfe des Sauggeräts gemäß Figur 1, das entsprechend Figur 2 eine Ladeeinrichtung aufweist.

Exemplary embodiments of the invention are explained below with reference to the drawing. Show it:

Figure 1

a perspective view of a system comprising a suction device and a hand machine tool provided with an electrical energy storage module in the form of a saw, in particular a jigsaw,

Figure 2

a perspective oblique view of an upper part of a suction device housing of the suction device according to FIG Figure 1 , which has a charging device,

Figure 3

the vacuum cleaner housing according to Figure 2 , but without a charging device, so that a module holder is visible, roughly corresponding to a section A in Figure 2 ,

Figure 4

the charging device according to Figure 2 , but away from the suction device,

Figure 5

Module contacts of the charging device according to Figure 4 , roughly corresponding to a section B in Figure 4 ,

Figure 6

a view roughly corresponding to the view according to Figure 2 , but with an energy storage module arranged on the charging device, which is shown in

Figure 7

is shown obliquely from above and in

Figure 8

is mounted on a hand machine tool in the form of a screwdriver or drill,

Figure 9

an electrical circuit diagram to illustrate a wireless control of the suction device according to Figure 1 and

Figure 10

an electrical circuit diagram to illustrate a charging concept for charging an electrical energy storage module using the suction device according to Figure 1 that accordingly Figure 2 has a charging device.

A suction device 10 has a suction device housing 11. The teat housing 11 comprises a lower part 12 and an upper part 13 which can be detachably connected to the lower part 12. On the suction cup housing 11 rollers 14 are arranged, of which the in Figure 1 front castors are 14 swivel castors. A dust collecting space 15 is provided in the vacuum cleaner housing 11, for example a receiving trough. A filter bag, for example, can be arranged in the dust collecting space 15, wherein the suction device 10 can also be used without a filter bag. The dust collecting space 15 is provided in the lower part 12. A suction inlet 17 is provided on a front wall 16 of the suction device housing 11, to which a Suction hose 18 can be connected. The suction inlet 17 opens into the dust collection space 15.

The electrical components of the suction device 10 are housed in a protected manner in the suction device housing 11. The electrical components are preferably arranged in the upper part 13, for example a suction motor 19 with which a suction flow 20 can be generated. The suction motor 19 comprises, for example, a fan arrangement, which is not explained in more detail, for generating the suction flow 20.

The suction device 10 can be operated in a manner known per se, for example via operating elements 21 which are arranged on an operating wall 22 provided above the front wall 16. There there is, for example, a main switch 23 for switching on or off the suction motor 19 or a setting switch 24 for setting a suction power of the suction device 10. In addition, a socket 25 is also provided, into which a power cord of an electrical consumer, for example a hand-held machine tool (not shown), can be plugged.

The suction device 10 can be supplied with electrical energy via a schematically illustrated internal energy store 26, for example a fuel cell or an electrical accumulator, and / or connected to an electrical power supply network N, for example 110 V to 230 V alternating voltage, for which a connection cable 27 is provided is. The connection cable 27 and the suction hose 18 can be inserted into a receptacle 28 on an upper side 29 of the suction device housing 11 when not in use.

The suction hose 18 has a housing end 30 which is designed as a plug-in end and can be plugged onto or into the suction inlet 17 in a manner known per se. Its other end forms one Suction end 31 and has a suction opening 32 to which, for example, a rigid suction tube, a brush or the like can be connected or what is shown in FIG Figure 1 is shown, for example a hand machine tool 80. The hand machine tool 80 is, for example, a jigsaw, with other saws, for example a circular saw, or milling or the like being possible as an alternative.

The hand machine tool 80 is an electrical machine, that is to say it has an electric drive motor 81, but with regard to the wireless control concept and / or reporting concept that will be explained later, other drive concepts of a hand machine tool with, for example, a pneumatic motor in connection in particular with a Polishing tool or grinding tool are easily possible.

The drive motor 81 drives a tool 82, for example a saw blade, with which a workpiece W can be machined. For example, the hand machine tool 80 is used to cut a saw cut S into the workpiece W. This creates dust which is sucked off by the suction device 10.

The drive motor 81 is arranged in a machine housing 83 of the hand machine tool 80. At a rear area of the machine housing 83 there is a holder 84, concealed by an energy storage module 90 in the drawing, for holding the energy storage module 90, the holder 84 also having electrical contacts 85 (indicated schematically) for electrically connecting the energy storage module 90 to the electrical components inside of the machine housing 83 are located. In any case, the energy storage module 90 supplies the hand machine tool 80 with electrical energy, so that it can be used without a connection to an electrical power supply network, for example the power supply network N, can be operated freely.

The hand machine tool 80 has a dust extraction connection 86, for example a connection piece, which can be connected to the suction end 31 of the suction hose 18. Thus, the suction device 10 can suck off the dust that arises during the operation of the hand-held machine tool 80 directly.

The operation and use of the hand machine tool 80 is facilitated in several ways in cooperation with the suction device 10. On the one hand, the suction device 10 can be switched by means of a wireless operating concept without a line connection, so that, for example, the suction motor 19 runs or does not run when the hand machine tool 80 is used or not. On the other hand, the suction device 10 enables the energy storage module 90 to be conveniently charged.

First of all, wireless operation is explained:
For example, an external communication device 50 is arranged at the suction end 31 of the suction hose 18, with which wireless control signals 51 can be generated for controlling the suction device 10, in particular for switching the suction motor 19 on and off. The external communication device 50 is fastened to the suction hose 18 by means of a Velcro tape or other fastening means 52, for example. It would also be possible for the suction hose 18 to have a pocket or other receptacle in which the external communication device 50 is arranged. It is also possible for the external communication device 50 to be encapsulated with the material, for example plastic, of the suction hose 18.

The external communication device 50 comprises, for example, a movement sensor 53 which reacts to movements of the suction hose 18. So if the suction hose 18 is moved in the area of its suction end 31, for example vibrates when the hand machine tool 80 is in operation, the movement sensor 53 generates a sensor signal 54 the external communication device 50 is sent via an antenna 56.

The external communication device 50 expediently has a local energy store 57, for example a battery and / or a storage capacitor, and / or a generator 58 for generating electrical energy. The generator 58 can, for example, be a generator which can be charged wirelessly by means of an inductively operating charging device 33, which is arranged on or in the vacuum cleaner housing 11, which is indicated by an arrow PL. Furthermore, the generator 58 can also be actuated, for example, by movements. In any case, it is preferred if no line connection is necessary between the vacuum cleaner housing 11 and the external communication device 50, wherein, for example, a line connection to the electrical power supply is also possible in principle. For example, as an alternative to or in addition to the charging device 33, electrical charging contacts 133 can be provided for charging an external communication device according to the invention. The charging device 33 and the charging contacts 133 form charging means 233. For example, a schematically illustrated charging bay or charging receptacle 355 with the charging contacts 133 and / or the charging device 33 is provided on the upper side 29 of the vacuum cleaner housing 11.

The suction device 10 has an electrical suction device communication device 40 with a suction device receiver 41r for Receipt of the control signals 51 sent by the external communication device 50. The suction device communication device 40 comprises, for example, a suction device communication module 42, which is received in a module receptacle 34 on the suction device housing 11.

The suction device receiver 41r receives the control signals 51, for example via an antenna 46. The antenna 46 can, for example, protrude in front of a housing of the suction device communication module 42, be integrated into it or the like.

The module receptacle 34 has, for example, a plug receptacle 35 into which a plug projection 43, described in more detail in connection with a charging module 60, can be inserted.

On the plug-in projection 43, for example, electrical module contacts 44 are provided, which can come into electrical connection with module contacts 36 of the module receptacle 34. The module contacts 44 are provided, for example, on a contact carrier 45, preferably designed in the form of a plug-in projection, which is provided for insertion into a plug-in receptacle 39 of the module receptacle 34. The module contacts 36, 44 are expediently proprietary contacts, that is to say not protective contacts like those of the connector arranged on the connecting cable 27, for example. The module contacts 36, 44 for the transmission of electrical energy and / or for the transmission of control signals and / or message signals.

The module receptacle 34 has, for example, an essentially rectangular cross-sectional contour and is designed as a recess.

The suction device communication module 42 sends switching signals 47 to a control device via its module contacts 44, for example 37, which in turn controls the suction motor 19, for example via suitable power switches, semiconductors or the like. If the suction device receiver 41r receives a control signal 51 from the external communication device 50, which is used to switch on the suction motor 19, the suction device communication module 42 controls the control device 37 accordingly, which in turn switches the suction motor 19 on, off or also its Adjusts power, for example its speed reduced or increased, which is indicated by an arrow 48.

It goes without saying that such actuating means, switches or the like can also be directly on board the suction device communication module 42, so that the interconnection of the control device 37 is not necessary.

Furthermore, a variant of the invention can provide that the control device of a suction device integrally has a wireless interface, so that a separate suction device communication module, such as the suction device communication module 42, is not necessary. For example, the suction device receiver 41r could form part of the control device 37.

It goes without saying that the above-mentioned modular concept is advantageous, but it is also possible that the suction device communication device 40 forms, for example, a fixed component of the suction device 10. The suction device communication device 40 can, for example, form part of the control device 37.

Instead of or in addition to the module contacts 36, 44, a wireless interface (radio interface or optical interface) could also be provided between the suction device communication device 40 and the control device 37.

In any case, a potential-free coupling between the suction device communication device 40 and the other electrical components of the suction device 10 is preferred, which can also be achieved, for example, by means of optocouplers.

Another concept provides that, for example, an external communication device 150 is arranged on board the hand machine tool 80 or an external communication device 250 is arranged on board the energy storage module 90 and can communicate wirelessly with the suction device communication device 40.

The external communication devices 150 and 250 can be integral components of the energy storage module 90 or the hand-held machine tool 80. However, a modular concept is also possible, that is, for example, on the hand machine tool 80 and / or on the energy storage module 90 there is a module receptacle in which the correspondingly modular external communication devices 150 or 250, for example designed as plug-in parts, can be arranged. Furthermore, the external communication devices 150 and / or 250 can also be arranged subsequently on the energy storage module 90 or the hand machine tool 80 by means of fastening means, for example adhesives, snap-in connection means or the like. Retrofitting is therefore possible.

The external communication device 150 includes, for example, a speed sensor 153 which detects a respective speed of the drive motor 81. So when the drive motor 81 and thus the hand machine tool 80 is operated, the speed sensor 153 controls an external transmitter 155s, which includes, for example, a Bluetooth transmitter, for sending control signals 151 via an antenna 156, which for example into the machine housing 83 is integrated, whereupon the suction device communication device 40 switches on the suction motor 19 or sends a switch-on signal to the control device 37. If the speed of the drive motor 81 increases, that is to say the tool 82 generates even more dust when machining the workpiece W, the external communication device 150 can control the suction device communication device 40 to increase the speed of the suction motor 19. When the hand machine tool 80 is switched off, the external communication device 150 controls to switch off the suction motor 19.

Instead of or in addition to the speed sensor 153, a magnetic sensor, a Hall sensor or the like could also be provided, for example. Of course, a current sensor can also be provided on board the hand machine tool 80, which detects the current flow to the drive motor 81 or a work area lighting (not shown) of the hand machine tool 80, which lights up during operation, and the external communication device 150 accordingly sends a control signal 151 Activation of the suction device communication device 40 is generated. Instead of or in addition to the current sensor, a voltage sensor can also be provided which measures a supply voltage applied to the drive motor 81 or the work area lighting.

A schematically indicated embodiment provides that a position sensor and / or a magnetic sensor and / or an electrical switching contact or similar other sensor 153 'is arranged on a switch 87, which is used to switch on and off the drive motor 81 of the hand machine tool 80 which detects the position of the switch 87 or can be actuated as a function of its position, so that the external communication device 150 generates the control signals 51 as a function of a position of the switch 87 and thus switches the suction motor 19 on and / or off and / or adjusts its power with the aid of the suction device communication device 40.

In this context, reference should also be made to a redundant detection concept, which means that an external communication device according to the invention can of course also have several sensors, switching contacts and the like, so that it generates the control signal as a function of at least two sensor signals or signals from switching contacts. For example, the external communication device 150 evaluates the sensor signals from the sensors 153 and 153 'and only sends the control signal 51 to switch on the suction motor 19 when both sensors 153 and 153' report that the drive motor 81 of the hand machine tool 80 is running.

It is advantageous if the suction device 10 continues to run for a fixed or preferably parameterizable follow-up time, i.e. the suction motor 19 is only switched off after a certain time, when the hand machine tool 80 has already been switched off. Thus, dust that is still in the suction hose 18 or also dust that is in the area around the tool 82 can be suctioned off, even if the hand-held machine tool 80 is already switched off.

Even switching on the suction motor 19 immediately when the control signal 51 indicates switching on is not always advantageous. For example, there may be an incorrect operation or the hand machine tool may not yet be in engagement with the workpiece W. Accordingly, it can be advantageous if a switch-on delay time is also permanently set or parameterizable in the suction device communication device 40, so that it only switches on the suction motor 19 after the switch-on delay time has elapsed, if it is triggered by the Control signal 51 for switching on the suction motor 19 has been activated.

The external communication device 250 forms part of the energy storage module 90 and comprises a current sensor 253, which comprises a current flow from the energy storage module 90 to the hand machine tool 80, in particular its drive motor 81. If the current sensor 253 detects a current flow, an external transmitter 255s generates a corresponding control signal 251 for controlling the suction device communication device 40 so that it switches on the suction motor 19. When the hand machine tool 80 is switched off, the external communication device 250 sends a corresponding switch-off control signal 251, whereupon the suction device communication device 40 switches off the suction motor 19.

The external communication device 250 is arranged in an energy storage housing of the energy storage module 90. Of course, it would also be possible to provide an intermediate module 100, so to speak, which is connected between the connection contacts 92 of the energy storage module 90 and the contacts 85 of the hand machine tool 80 in order to detect the flow of current from the energy storage module 90 to the hand machine tool 80 or the drive motor 81 to generate a corresponding control signal 251. The intermediate module 100 is indicated.

A preferred embodiment provides that a suction device communication device and an external communication device, which communicate wirelessly with one another, get to know each other as part of a learning process, for example a so-called teach function. Thus, for example, misuse or incorrect operation can be prevented. For example, the external communication device 50 initially sends a communication identifier as part of a start procedure 59 to the suction device receiver 41r, which in turn uses a comparison list, for example, to check whether the communication identifier 59 authorizes the external communication device 50 to send the control signals 51. If, for example, several craftsmen are working on a construction site and using their hand tools according to the invention to switch suction devices on and off wirelessly, this can prevent malfunctions.

It is also possible that the suction device communication device 40 is ready to receive the communication identifier 59, for example by pressing an electrical contact of the suction device communication device 40 (not shown in the drawing), thus the external communication device 50, 150, 250 as an authorized external -Communication device recognizes and then accepts the control signals 51, 151, 251 from it.

The charging module 60 can also have or form a suction device communication device according to the invention, for example a suction device communication device 140.

So far, the communication direction from the external communication device 50, 150, 250 to the suction device communication device 40, 140 has been described in the sense of a control of the suction device 10 by the external communication device 50, 150, 250.

In the communication direction from the hand machine tool to the suction device, messages can of course also be issued, so that, for example, an operating state of the hand machine tool 80 on board the suction device 10 can be displayed. For example, the external communication device 150 may malfunction of the hand machine tool 80 in the context of an external transmitter 155s as a message signal 101 to the suction device communication device 40, which in turn then receives the message signal 101 via a suction device receiver 41r and, for example, an optical display 102, for example an LED, to display the message signal 101 controls.

Wireless communication is also useful between the external communication device 250, which is on board the energy storage module 90, for example, and the charging module 60, which comprises the suction device communication device 140. For example, the external communication device 250 can use an external transmitter 255s to report the charge status of the energy storage module 90 to the charging module 60, that is to say the charging device 61, by means of a message signal 201. The suction device communication device 140 receives the notification signal via a suction device receiver 141r. For example, an optical and / or acoustic display 103 can be provided on board the charging device 61, which displays the charging status of the external energy storage module 90 operated on the hand machine tool 80.

It is also possible, for example, for the charging device 61 to control the charging of the energy storage module 90 currently to be charged as a function of the message signal 201, for example to accelerate the electrical charging of this energy storage module 90 to be charged if the energy storage module 90 operated on the hand machine tool 80 quickly loses a charge , so it has to be replaced soon. The external communication device 250 comprises, for example, a measuring device 257 for detecting the state of charge of the energy storage module 90 and for generating the message signal 201 reporting the state of charge.

Of course, the aforementioned wireless concept can also be used in the opposite direction, that is to say that the suction device communication devices 40, 140 send messages or signals to the external communication devices 50, 150, 250.

On board the suction device communication devices 40 and / or the suction device communication devices 140, for example, suction device transmitters 41s and 141s are provided, which are designed to send control signals and / or message signals to the external communication devices 50, 150, 250.

If, for example, the control device 37 of the suction device 10 signals the suction device communication device 40 by means of an internal signal 147 that the dust collecting space 15 is almost full, i.e. cannot pick up any more particles, the suction device transmitter 41s can send a message signal 105 to the external communication device 50, which outputs the content of the message signal 105 to optical or acoustic output means 106, which include, for example, an LED. The operator can use this signal output occurring directly on site at the hand machine tool 80 to recognize that he has to empty the collecting container of the suction device 10, for example.

The control device 37 can thus generate a message signal 105 or a message with the aid of the suction device communication device 40, which sends it to one or more of the external communication devices 50, 150 or 250 via the suction device transmitter 41s. The reporting signal 105, which, as indicated, can also be a more complex message containing a plurality of items of information or can also comprise a plurality of messages that are separate from one another, contains, for example, information about the size of the suction flow 20 and / or a suction power of the suction motor 19 and / or information about a fill level in the dust collecting space 15.

The external communication devices 50, 150 or 250 can output one or more pieces of information from the message signal 105 to output means 106, for example, which include, for example, an illuminated display, for example LEDs, and / or a display and / or a loudspeaker or other acoustic output means. If, for example, the message signal 105 signals that the dust collection chamber 15 and / or a filter not shown in the drawing located therein will soon be completely filled and soiled, a light indicator 107 designed as a warning LED of the external communication device 50 can indicate this .

The external communication device 150 or 250 arranged on board the energy storage module 90 or the intermediate module 100 or the hand-held machine tool 80 can also include, for example, a haptic display, a vibration display or the like in order to output the message signal 105. For example, an optical and / or acoustic display 104 and / or a vibration element 109 can be provided as an output means on board the hand-held machine tool 80, which is activated in the event of a critical fill level in the dust collecting chamber 15 and / or in the event of a lower suction power of the suction device 10, which is in the The frame of the message signal 105 is signaled, vibrates and thus indicates to the operator that he should take care of the suction device 10 so that the suction power he wants is available.

A function that goes even further is represented when the suction device 10 and / or the suction device communication devices 40 or 140 have a direct influence on the function of the hand machine tool 80 with the aid of a control signal 108. For example In the event of a failure of the suction device 10 or a correspondingly critical, lower suction power of the suction device 10, the control device 37 can send information 147 to the suction device communication devices 40 or 140, which generates the corresponding control signal 108 therefrom and to the external communication devices 50, 150 , 250 sends. The external communication devices 150 or 250 can then directly influence the operation of the hand machine tool 80. If, for example, the suction power of the suction device 10 is not available or is only available to a reduced extent, the control signal 108 can instruct to reduce the power of the drive motor 81 or even to switch it off completely. In this way, it can be avoided, for example, that the user is harmed by swirling particles if the suction device 10 can no longer sufficiently suction off the particles generated by the hand machine tool 80.

The external communication device 250 located on board the energy storage module 90 can, for example, switch the current flow to the hand machine tool 80 on and off by means of a switching device 258, e.g. after being activated by the control signal 108.

Furthermore, the external communication device 250 can have, for example, a wired or preferably wireless interface 259, for example a radio interface, for communication with the hand machine tool 80, in particular its controller 88, for example to forward the control signal 108 and / or the operating parameters 450, 400 and / or to communicate the identification codes 410, 460. A wired interface 259 can, for example, provide that data are digitally transmitted and / or modulated via the supply lines to the hand machine tool 80.

The external communication device 150 is connected directly to the control, for example on-board electronics, of the hand machine tool 80 or forms part of the same, so that it can directly influence the operation of the drive motor 81 in this way, i.e. switch it off, for example . It is of course advantageous if a warning is given beforehand so that the operator is not surprised by the aforementioned forced shutdown.

It is advantageous if the suction device communication devices 40, 140 and / or the external communication devices 50, 150, 250 have, for example, a microprocessor and / or are suitable for executing software modules with which the functions explained above or below can be implemented. For example, the external communication device 50 has a microprocessor 70 which evaluates the sensor signals 54 by means of a program module 71 and, for example, controls or realizes the external transmitter 55s and / or the external receiver 55r. The program module 71, like the communication identifier 59, is expediently stored in a memory 72.

In one function, the charging module 60 is for charging the energy storage module 90 or other energy storage modules, not shown in the drawing, for hand machine tools, for example the hand machine tool 80 or one in Figure 8 Hand machine tool 180 shown in the form of a cordless screwdriver or drill is provided. The charging module 60 forms a charging device 61 for charging the electrical energy storage module 90.

The charging module 60 has a holder 63 on its charger housing 62 for holding the energy storage module 90. The holder 63 comprises for example a plug-in projection 64 which can be inserted into a plug-in receptacle 93 of the energy storage housing 91 or of the energy storage module 90.

The holder 63 also comprises a plug-in receptacle or holding receptacle 68, into which a plug-in projection 94 on an upper side 95 of the energy storage housing 91 can engage. The holder 63 corresponds to the holder 84 of the hand machine tool 80 or 180, i.e. it is designed to receive the energy storage housing 91 in a form-fitting manner.

In the area of the plug projection 64, electrical charging contacts 65 are provided for providing a charging voltage L for the electrical energy storage module 90.

The charging voltage L is, for example, a DC voltage in a range from 5 V to 25 V. In this context, it is advantageous if the charging module 60 has detection means 66 in order to detect the respective type of the energy storage module 90 and to set the charging voltage L accordingly. If, for example, a 12 V energy storage module is connected, the charging voltage L is set correspondingly lower, while in the case of an energy storage module with a nominal voltage of 18 V, a correspondingly higher charging voltage L is inserted. The detection means 66 include, for example, electrical means, optical means or the like. It is also possible for the detection means 66 to include, for example, a bus interface in order to communicate with a bus coupler on board the energy storage module 90 and thus to acquire data from the energy storage module 90, for example its state of charge, nominal voltage or the like.

With the help of electrical adjustment means 67, for example an electrical transformer and / or a Including rectifiers or the like, the charging device 61 can convert a supply voltage V provided by the supply network N, for example, to the charging voltage L.

In addition, monitoring means 75 are advantageously provided for monitoring the charging voltage L and / or for monitoring a state of charge of the energy storage module 90, so that it is optimally charged.

The monitoring means 75 and / or detection means 66 and / or the adaptation means 67 comprise, for example, a microprocessor 76 that executes the program code of software modules, for example a software module 78 stored in a memory 77 the adaptation means 67 in hardware is easily possible.

The charger housing 62 has a partially similar design to the suction device communication module 42, so it also has a plug projection 43 on which module contacts 44 are provided for establishing an electrical connection with the module contacts 36 of the module receptacle 34. Thus, the adapting means 67 arranged inside the charger housing 62 can be supplied with electrical energy by the suction device 10, i.e. for example via the connecting cable 27, in order to provide the charging voltage L.

An additional fixation of the loading module 60 on the vacuum cleaner housing 11 or the module receptacle 34 can take place, for example, by screws 69, which can be screwed into corresponding screw openings 38 of the module receptacle 34. A magnetic hold, a latching or the like of the charging module 60 on the vacuum cleaner housing 11 is also easily possible, but not in the drawing shown. The suction device communication module 42 can expediently also have corresponding holding means (screws, magnets, latching means) in order to find a secure hold in the module receptacle 34.

Furthermore, it is expedient, but not shown in the drawing, that the charging module 60 or the charging device 61 forms an integral part of the suction device 10, that is, for example, that the charger housing 62 and the suction device housing 11 are in one piece.

Of course, a holder of the type of the holder 63 and charging contacts of the type of the charging contacts 65 can also be arranged at another point of the vacuum cleaner housing 11, for example at the top in the area of the receptacle 28, where the energy storage module to be charged can be accommodated in a protected manner, i.e. less exposed is than in the area of the control panel 22.

The suction device communication device 140 formed by the charging module 60 has, for example, a suction device receiver 141r. The charging module 60 is supplied with electrical energy, for example a supply voltage V, via the module contacts 36. A current sensor 49 on board the suction device 10, for example as part of or in connection with the control device 37, detects, for example, whether an electrical current is flowing via the module contacts 36.

When the charging module 60 receives a control signal 51, 151, 251 for switching on the suction motor 19 via its suction device receiver 141r and an antenna 146 integrated, for example, in the charger housing 62, it begins the charging process of the energy storage module 90, i.e. generates it from the supply voltage V die Charging voltage L, so that a charging current I flows. An input current E required to provide the charging current I becomes detected by the current sensor 49. The suction device 10 thus recognizes that an electrical consumer needs power and then switches on the suction motor 19 in a manner known per se.

When the control signal 51, 151, 251 instructs to switch off the suction motor 19 or to reduce its power, the suction device communication device 140 or the charging module 60 reduces the power supply to the energy storage module 90 or switches off the charging process so that on the input side (supply voltage V) no input current E that can be detected by the current sensor 49 or an input current E lying below a detection threshold flows and thus, for example, the control device 37 switches off the suction motor 19. Thus, for example, the charging module 60 can, as it were, simulate a mains-connected electrical hand-held machine tool that is supplied with electrical energy via the suction device 10 - which, however, is actually not the case.

It is also possible for the charging device 61 to be supplied with electrical energy by the energy store 26 on board the suction device 10. For example, the control device 37 controls the provision of electrical energy to the module contacts 36. It is preferably provided that the control device 37, for example, lowers the power output at the module contacts 36 when the suction motor 19 is running and then increases it again. Thus, for example, a power supply unit of the suction device 10, which provides the charging voltage L, is less heavily loaded.

The suction device communication devices 40 and / or 140 located on board or connected to the suction device 10 and the external communication devices 50, 150, 250 are also suitable for a registration procedure in which the suction device 10 has at least one operating parameter 400 and / or at least an identification code 410 to the external device, for example the hand machine tool 80 and / or its energy storage module 90 and / or, in the opposite direction, the device to be connected to the suction device 10, for example the hand machine tool 80 or its energy storage module 90, at least one operating parameter 450 and / or sends at least one identification code 460 to the suction device 10 so that only matching pairs of suction device and hand machine tool are used and / or the operating parameters of suction device 10 and hand machine tool 80 or 180 are set so that optimal operation the respective hand machine tool 80 or 180 on the suction device 10 is possible.

If, for example, the suction power of the suction device 10 is not sufficient for the operation of the hand machine tool, the procedure described in detail below can be used to prevent the suction device 10 from being used in connection with the hand machine tool 80. However, if the suction power is sufficient for the hand machine tool 180, for example, the suction device 10 and the hand machine tool 180 can be used together.

Furthermore, it is advantageously possible for the suction device 10 and the respectively connected hand machine tool 80 or 180 to coordinate their respective outputs with one another in that one device logs on to the other device and / or vice versa.

At this point it should be noted that although wireless communication between the hand-held machine tool 80 and 180 on the one hand and the suction device 10, in particular its suction device communication devices 40, 140, is useful, it does not exclude the possibility of the registration procedure or identification procedure described below, but the sending of reporting signals and / or control signals, wired communication, at least in one direction (from the suction device to the hand-held machine tool or vice versa) is also within the scope of the invention. In other words, for example, communication can take place in one direction, that is to say for example from the suction device to the hand-held machine tool, in the opposite direction without cables, or vice versa.

For example, at least one communication line 300, for example an electrical line and / or an optical conductor, runs in the suction hose 18 for this purpose, to which on the one hand, for example, the suction device communication devices 40 and / or the control device 37 or another component on board the suction device 10 is connected to communicate with the hand machine tool 80 or 180. On the side of the hand machine tool 80 or 180, for example, the external communication device 150 or 250 can be connected to the at least one communication line 300.

For example, the external communication device 150 or 250 sends the identification code 460 that identifies the hand-held machine tool 80 to the suction device 10.

The suction device communication device 40 receives the identification code 460 and forwards it, for example, to the control device 37, which uses the identification code 460 to identify, for example, the type of hand machine tool 80, for example which amount of particles is to be expected from this hand machine tool 80 and which suction power accordingly is to be provided by the suction device 10 or the like.

The control device 37 accordingly sets the function of the suction device 10, for example in such a way that the suction power of the suction motor 19 can be set on the setting switch 24, but not below a limit value that enables reliable suction of the particles generated by the hand machine tool 80 .

It is also possible for the control device 37 to check whether operation of the hand machine tool 80 with the suction device 10 is even possible, so that at least one criterion is met. If, for example, it should be noted that the suction device 10 is intended to provide explosion protection in connection with the respective hand machine tool and / or at least a predetermined suction power of the suction device 10 is required so that the at least one criterion is met, the control device 37 can determine whether the identification code 460 is specified in a table 430 which contains several identification codes. If this is the case, the control device 37 enables the suction device 10 for operation with the hand machine tool 80.

Depending on the tool 82 used on the hand machine tool 80, the type of particles can also be different, for example comprise larger chips or smaller chips. Accordingly, it is expedient if the hand machine tool 80 sends information about the tool 82 used to the suction device communication devices 40 or 140, for example as an operating parameter 450. Depending on the nature of the particles that the operating parameter 450 then represents, the control device 37 can, for example, set cleaning intervals of a cleaning device 9 that cleans a filter 8 upstream of the suction motor 19.

It is also advantageous on the part of the hand machine tool 80 if the suction device 10 logs on, so to speak, before the start of an operation. For example, the suction device communication device 40 sends an identification code 410 of the suction device 10 and / or at least one operating parameter 400 to the hand machine tool 80.

A controller 88 on board the hand machine tool 80 uses a check table, for example, to check whether the identification code 410 classifies the suction device 10 in such a way that it can be used in connection with the hand machine tool 80. Only then does the controller 88 enable the drive motor 81. Otherwise, the controller 88 blocks the drive motor 81, so that, for example, adverse health effects of a user of the hand-held machine tool 80 due to particles that have not been extracted can be avoided.

On the basis of the operating parameter 400, the suction device 10 can, for example, communicate to the hand-held machine tool 80 which suction power can be available. The hand machine tool 80 then reduces, for example, a maximum speed of the drive motor 81, so that even at the highest speed of the drive motor 81 that can be set at the switch 87, the suction power of the suction device 10 is sufficient to reliably remove all particles or at least essentially all particles from the working area of the hand -Suction machine tool 80.

Furthermore, the external communication devices 150 or 250 and / or the suction device communication devices 40 or 140 can directly generate control signals and / or message signals based on the respective received identification code if the 410, 460 and / or the received operating parameters 400, 450 and to the other Send communication devices.

If, for example, the identification code 410 assigns the suction device 10 to a specific performance class, the external communication devices 150 and / or 250 can use the identification code 410 to determine, for example, that the suction device 10 has to provide a specific performance and accordingly sends a control signal 351 that the suction device 10 instructed to set a specific power level as a minimum power level that can be set on the setting switch 24. Of course, instead of the control signal 351, a message signal 352 can also be generated, which is displayed by the display 102, for example.

The suction device 10 or the suction device communication devices 40, 140 can also be configured in this way. For example, the suction device communication devices 40, 140 and / or the suction device 10, for example the control device 37, use the identification code 460 or the operating parameter 450 to determine which speeds of the drive motor 81 of the hand machine tool 80 are to be set or can be set and accordingly sends a control signal 353 and / or a message signal 354 to the external communication devices 150 or 250. The control signal 353 instructs them to notify the control device 88, for example, of which outputs of the drive motor 81 should be adjustable at the switch 87. The information in the message signal 354 is displayed on the display 104, for example, so that the operator knows which power ranges are preferably to be set on the hand machine tool 80 and / or which tools can be used or the like.

Claims (15)

1. Suction device (10) for the separation of particles from a suction flow (20), with a suction motor (19) to generate the suction flow (20) and with a suction device housing (11) in which the suction motor (19) and a dust collection chamber (15) for collecting particles separated from the suction flow (20) are mounted, wherein the suction device (10) is provided to suck away particles arising in operation of a hand-operated power tool (80) with a drive motor (81) for driving a tool (82), wherein it has a suction device communication facility (40; 140) for communication with an external communication device (50; 150; 250), to be operated in conjunction with the hand-operated power tool (80) at a distance from the suction device housing (11), in particular forming a part of the hand-operated power tool (80), and wherein the suction device communication facility (40; 140) has a suction device transmitter (41s, 141s) for sending at least one control signal (108) and/or status signal (105) to the external communication device (50; 150; 250), characterised in that the suction device communication facility (40; 140) is designed for sending a control signal changing the operating status of the hand-operated power tool (80).
2. Suction device (10) according to claim 1, characterised in that the suction device communication facility (40; 140) includes a suction device receiver (41r, 141r) for receiving control signals (51; 151; 251) and/or status signals (101, 201) sent by the external communication device (50; 150; 250).
3. Suction device (10) according to claim 1 or 2, characterised in that the suction device communication facility (40; 140) is designed for cordless and/or corded communication with the external communication device (50; 150; 250).
4. Suction device (10) according to any of the preceding claims, characterised in that the suction device communication facility (40; 140) is designed for sending a warning signal to the external communication device (50; 150; 250).
5. Suction device (10) according to any of the preceding claims, characterised in that the suction device communication facility (40; 140) is designed for sending and/or receiving at least one identification code (410, 460) and/or operating parameter (400, 450) to or from the external communication device (50; 150; 250).
6. Suction device (10) according to claim 5, characterised in that it is designed for setting at least one function of the suction device (10) and/or the hand-operated power tool (80)with the aid of the identification code or codes (410, 460) and/or the operating parameter (400, 450).
7. Suction device (10) according to claim 5 or 6, characterised in that the suction device communication facility (40; 140) is designed for sending to the external communication device (50; 150; 250) a control signal (351, 353) and/or status signal (352, 354) formed with the aid of the received operating parameter (400, 450) and/or the received identification code (410, 460), wherein expediently the control signal (351, 353) is provided for setting at least one function of the hand-operated power tool (80), in particular for control of the drive motor (81) of the hand-operated power tool (80), and/or the status signal (352, 354) is advantageously provided to output information determined by the suction device communication facility (40; 140) or the suction device (10), in particular a warning.
8. External communication device (50; 150; 250) for interaction with a hand-operated power tool (80) and for communication with a suction device communication facility (40; 140) of a suction device (10) according to any of the preceding claims, wherein the external communication device (50; 150; 250) forms part of the hand-operated power tool (80) or is a module which may be connected to the hand-operated power tool (80), and wherein it has an external receiver (55r, 155r, 255r) to receive the control signal (108) and/or status signal (105) from the suction device communication facility (40; 140) and/or an external transmitter (55s, 155s, 255s) for sending at least one cordless control signal (51; 151; 251) and/or status signal (101, 201) to the suction device communication facility (40; 140), characterised in that it is designed to control the hand-operated power tool (80), in particular a controller (88) of the hand-operated power tool (80), with the aid of the control signal (108) received from the suction device communication facility (40; 140).
9. External communication device (50; 150; 250) according to claim 8, characterised in that it has an electrical energy store (57) and/or an energy generation unit with an electrical generator (58) drivable by movements of the external communication device (50; 150; 250) or the suction flow (20), so that it is designed to send and/or receive the control signal or signals (51; 151; 251) or the status signal self-sufficiently, with no external power supply.
10. External communication device according to any of claims 8 or 9, characterised in that is in the form of an intermediate module (100) which may be positioned between a housing of a hand-operated power tool (80) and an energy storage module (90) for the electrical power supply of the hand-operated power tool (80), and/or that it forms part, in particular in the form of a module, of a hand-operated power tool (80) or an energy storage module (90) for the electrical supply of a hand-operated power tool (80), and/or that it has an interface (259) for communication, in particular cordless, with the hand-operated power tool (80), in particular its controller (88), and/or that it has a switching device (258) for switching an electrical power supply or compressed air supply of the hand-operated power tool (80).
11. External communication device according to any of claims 8 to 10, characterised in that it is designed to send and/or to receive at least one identification code (410, 460) and/or an operating parameter (400, 450) to the suction device communication facility (40; 140) or from the suction device communication facility (40; 140).
12. External communication device according to any of claims 8 to 11, characterised in that it is designed for setting at least one function of the suction device (10) and/or the hand-operated power tool (80) with the aid of the identification code or codes (410, 460) and/or the operating parameter (400, 450).
13. External communication device according to claim 11 or 12, characterised in that it is designed to receive the identification code or codes (410, 460) and/or the operating parameter (400, 450) or both from a controller (88) of the hand-operated power tool (80) and/or to send the identification code or codes (410, 460) and/or the operating parameter (400, 450) to the controller (88) of the hand-operated power tool (80).
14. External communication device according to any of claims 8 to 13, characterised in that it is designed for communication with the hand-operated power tool (80), in particular with its controller (88), with the aid of the control signal (108) and/or status signal (105) received by the suction device communication facility (40; 140), and/or that it may be triggered to send the control signal (51; 151; 251) and/or status signal (101, 201) to the suction device communication facility (40; 140) by the hand-operated power tool (80), in particular its controller (88).
15. External communication device according to any of claims 8 to 14, characterised in that it has output means, in particular audible and/or visual, to output information received from the suction device communication facility (40; 140), in particular the control signal (108) and/or status signal (105).

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