EP3700401A1

EP3700401A1 - Suction connection adapter

Info

Publication number: EP3700401A1
Application number: EP18772779.7A
Authority: EP
Inventors: Dietmar Saur; Tim Hartmann
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2017-10-23
Filing date: 2018-09-12
Publication date: 2020-09-02
Also published as: DE102017218852A1; CN111278338A; WO2019081118A1; US20210022572A1

Abstract

The invention relates to a suction connection adapter (10) for a suction device (100), comprising at least one machine connection unit (20) and at least one suction device connection unit (30). The at least one machine connection unit (20) can be detachably connected to a machine tool (200), in particular a hand-held power tool, and the at least one suction device connection unit (30) can be detachably connected to a suction hose (110) of the suction device (100). According to the invention, the suction connection adapter (10) has at least one sensor device (40).

Description

description

title

Absauganschlussadapter

The present invention relates to a suction connection adapter for a suction device, with at least one machine connection unit and with at least one Sauggeratanschlusseinheit.

State of the art

From DE 10 2012 216 884 A1, a suction connection adapter for a suction device with at least one machine connection element and at least one suction connection element is already known, wherein the at least one machine connection element is intended to be connected to a portable machine tool and the at least one suction connection element is designed for this purpose to be connectable with a vacuum cleaner.

Disclosure of the invention

The present invention is based on a suction connection adapter for a suction device, with at least one machine connection unit and with at least one suction device connection unit. The at least one machine connection unit is detachably connectable to a machine tool, in particular a hand tool machine. The at least one Sauggerätanschlusseinheit is detachably connectable to a suction hose of a suction device. It is proposed that the suction connection adapter has at least one sensor device.

Due to the at least one sensor device, the invention makes it possible to use the suction connection adapter as a universal communication interface between the machine tool and the suction device. In contrast to the prior art, the invention provides the solution to the task, to produce at least one communication connection between the machine tool, in particular hand tool, and the suction device. In the context of the present invention, "universally" means that the suction connection adapter according to the invention independently of a machine tool manufacturer provides the at least one communication connection with the suction device The suction connection adapter according to the invention is compatible with and usable for substantially any machine tool, in particular a hand tool tubular

Basic body with at least a first and at least one second end region. The at least one machine connection unit is arranged on the at least one first end region, and the at least one suction device connection unit is arranged on the at least second end region. The at least first end region is arranged substantially adjacent to the machine tool, whereas the second end region is arranged on an opposite side of the at least one first end region, in particular of the suction device. The tubular main body is designed to expand a suction flow, which is generated by the suction device, by means of the suction connection adapter into a housing of the machine tool. This makes it possible to suck off particles, in particular dirt particles, directly from the machine tool, in particular hand tool, when the machine tool is operated. The suction flow transports the resulting particles by means of the suction connection adapter and the suction hose into at least one dust collecting device of the suction device. By way of example, the suction connection adapter can be designed as at least one suction connection.

The at least one machine connection unit is arranged on the first end region of the suction connection adapter and designed to produce a detachable connection with the machine tool, in particular a hand-held power tool. For this purpose, the machine tool, in particular a machine tool housing, has at least one machine tool connection unit. The at least one machine tool connection unit is provided to receive the at least one machine connection unit. In addition, the at least one machine tool connection unit is designed to falling particles, in particular dirt particles, during the operation of the machine tool from a work surface, a work area and / or a work area of the user transported away. In particular, the at least one tool connection unit can be formed integrally with the machine tool housing. The at least one machine connection unit is set up to produce an axial and radial lock with the machine tool housing. For this purpose, the at least one machine connection unit has at least one positive-locking element, for example in the form of a groove. The at least one machine tool connection unit comprises at least one compatible positive-fit receiving element which receives the at least one positive-locking element, for example in the form of a spring.

The at least one suction device connection unit is arranged on the second end region of the suction connection adapter and provided to form a releasable connection with the suction hose of the suction device. In particular, the at least one suction device connection unit is used to produce a detachable axial and / or radial securing of the suction hose. The suction device advantageously has at least one suction device connection unit with a tubular base body, so that the detachable axial and / or radial securing can be produced. The Sauggerätanschlusseinheit is preferably formed as a sleeve. The at least one Sauggerätanschlusseinheit comprises at least one receiving unit, which is intended to produce a positive and non-positive connection with the at least one Sauggerätverbindungseinheit. For this purpose, the at least one suction device connection unit has at least one securing unit. Particularly advantageously, the at least one receiving unit is formed in correspondence with the at least one securing unit such that it receives the at least one securing unit and thereby establishes the positive and non-positive connection. Therefore, the axial and / or radial lock is preferably non-positively and positively provided, but also a non-positive or positive connection would be conceivable. By the positive and non-positive connection of the at least one Sauggerätanschlusseinheit with the at least one Sauggerätverbindungseinheit a safe and reliable connection of the Absauganschlussadapter to the suction hose to be made and in particular ensured. According to the invention, the suction connection adapter has at least one sensor device. The at least one sensor device has at least one sensor device housing and is arranged substantially at the suction connection adapter. By way of example, the at least one sensor device is arranged on a machine-connection-side or on a suction-device-connection-side region. In the context of the present invention, "machine connection side" essentially means partially in the first end region and "suction device connection side" as substantially partially in the second end region. The at least one sensor device is advantageously mechanically connected to the suction connection adapter. In the context of the present invention, "mechanically connected" means that it is a non-positive, positive and / or material-locking connection, which may be designed to be detachable or non-detachable. Alternatively, a clamping connection and / or a latching connection for the at least one sensor device to the suction connection adapter is also conceivable, with the task of fastening the at least one sensor device to the suction connection adapter It is also conceivable that the at least one sensor device is arranged in the suction connection adapter, in particular into the suction connection adapter worked. Here, the term "incorporated" is to be understood as being integrated in the suction connection adapter, so that the at least one sensor device is at least partially, in particular substantially completely, enclosed by a material of the suction connection adapter; in particular, then the at least one sensor device and the suction connection adapter form a cohesive connection Furthermore, it is possible that the at least one sensor device is within the suction connection adapter, so that the at least one sensor device is directly flowed around by the suction flow.

Advantageously, the at least one sensor unit has at least one operating unit. The at least one operating unit comprises at least one operating element and / or at least one display element. The at least one operating unit of the at least one sensor device configured to be operated by a user. Furthermore, the at least one operating unit of the at least one sensor device is designed to provide and display at least one operating state and / or at least one operating parameter and / or at least operating information of the at least one sensor device and / or the suction device for the user. It is also possible that the at least one operating unit of the at least one sensor device indicates the at least one operating state of the machine tool, in particular hand tool machine. In addition, the at least one operating unit of the at least one sensor device can be provided to change operating states and / or operating parameters of the at least one sensor device and / or the suction device, in particular to control and / or regulate the at least one sensor device and / or the suction device. The at least one operating unit of the at least one sensor device is preferably assigned to the at least one sensor device housing, in particular arranged on the at least one sensor device housing. Preferably, the at least one operating unit of the at least one sensor device is arranged on at least one side of the sensor device housing. An operating element, in particular the at least one sensor device, can be designed as at least one pusher element, as at least one sliding element, as at least one rotary element or else as at least one tilting element. Other embodiments of the at least one control element are conceivable. The at least one pusher element is configured to be pressed by a user. The at least one sliding element is intended to be displaced by a user. The at least one rotary element is adapted to be rotated by a user. The at least one tilting element is intended to be tilted by a user. Depending on the embodiment, a combination of the aforementioned controls is possible.

A display element, in particular of the at least one sensor device, is designed to display operating states and / or operating parameters and / or operating information. Examples of a display element are at least one LED or at least one display, or more, to the expert as meaningful appearing, display elements. In this case, the operating states can be, for example, "switched on", "switched off", "automatic operating mode" or "autostart". The operating parameters are, for example, at least one rotational speed, at least one power, in particular at least one suction power, at least one threshold value for at least one sensitivity of the at least one sensor device. Examples of the operating information are "pairing with an electrical device", "connected to an electrical device", at least one battery state of charge, at least one sensor device, the suction device or the machine tool, in particular a handheld power tool Also, other examples of operating conditions, operating parameters and / or operating information are possible, which seem appropriate to those skilled in the art.

The at least one operating unit of the at least one sensor device increases the ease of use for the user and enables him to easily and directly handle the at least one sensor device.

In a preferred embodiment, the at least one sensor device has at least one sensor device power supply unit, which is designed to provide the at least one sensor device with energy. For this purpose, the at least one sensor device power supply unit is advantageously supplied with electrical energy via at least one battery, in particular at least one button cell, via at least one rechargeable battery unit or by means of energy harvesting. The configuration of the at least one sensor device power supply unit by means of the at least one battery, the at least one rechargeable battery unit or energy harvesting are sufficiently known to the person skilled in the art, for which reason it will not be discussed in detail here. In an alternative embodiment, it is also conceivable that the at least one Sensorvor- direction power supply unit is supplied with power line. In this case, it would be possible for the line binding to be formed to the machine tool or to the suction device.

The suction device comprises, in a manner known per se, in particular a suction device drive, at least one suction device energy supply unit, a dust collecting device and a suction device control unit. The details and the action of the suction device drive, the dust collection device and the suction device control unit are well known to those skilled in the art.

The suction device is preferably a battery-operated suction device which can be operated by means of at least one rechargeable battery, in particular by means of a handheld machine tool battery bag. As a result, the provision of the energy by the at least one suction device energy supply unit then takes place by means of the at least one rechargeable battery. In the context of the present invention, a "handheld power tool battery bag" is understood as meaning a combination of at least one battery cell and a battery pack housing. For example, the handheld power tool battery pack comprises at least five battery cells and a total rated operating voltage of 18 V in order to enable performance of the suction device The external mains socket can provide a voltage of eg 100 V, 1 10 V, 120 V, 127 V, 220 V, 230 V or 240 V at 50 Hz or 60 Hz he also has a three-phase AC voltage. The possible embodiments of the external power socket and the associated voltages available are well known to those skilled in the art.

Furthermore, the suction device housing can have at least one suction device operating unit and at least one suction device holding unit. It is also possible for the suction device housing to comprise at least one suction device power socket, so that a connected electrical device will be supplied with energy when the suction device itself is supplied with energy.

The suction device operating unit comprises at least one suction device operating element which is designed to be operated by a user and to generate switching signals. The switching signals then control the suction device drive via the suction device control unit. The at least one suction device operating element can be arranged on one side of the suction device housing. Sauggerät- Control elements may be, for example, a main switch or a setting switch. The main switch is designed to switch the suction device drive on and off or to switch to the autostart function. The setting switch is adapted to set a suction power of the suction device. The at least one Sauggerätbedienelement is an operating element of the suction device, in particular an operating element of the type mentioned. The suction hose is arranged in particular on the suction device housing.

The suction device housing includes at least one mechanical interface that substantially connects the suction hose releasably to the suction device housing.

This is done by means of a non-positive and / or positive connection. For this purpose, the suction hose preferably has at least one locking unit which produces the non-positive and / or positive connection from the suction hose by means of the at least one mechanical interface with the suction device housing. The person skilled in the design of the at least one locking unit for a suction hose is well known, which is why not discussed here in detail.

The suction device holding unit comprises at least one suction device holding element, for example a suction device grab handle, with which the user can hold the suction device. In addition, at least one suction device movement unit can be attached to the suction device housing so that the suction device is expediently a mobile suction device. The at least one suction device moving unit is formed as at least a roller, at least a wheel or the like, so that it can be moved on a ground. Preferably, the mobile suction device is configured as a portable suction device which has rollers, wheels or the like or has no rollers, wheels or the like. In the context of the present invention, the user can take the suction device and insert it directly at a desired place of use.

It is proposed that the at least one sensor device comprises at least one sensor unit which is designed to detect at least one operating signal of the machine tool, in particular of the handheld power tool. The at least one sensor unit is essentially arranged in the sensor device housing. Preferably, the at least one sensor unit is as at least one acceleration sensor is formed, which detects the at least one operating signal of the machine tool, in particular its vibrations during operation. Preferably, the at least one acceleration sensor essentially detects at least acceleration values of at least one spatial direction. Most preferably, the at least one acceleration sensor essentially detects at least acceleration values in at least three spatial directions. So that the at least one sensor unit can detect the at least one operating signal, the at least one sensor unit is connected to the machine tool by means of the suction connection adapter.

It is also possible that the at least one sensor unit is at least one yaw rate sensor that detects at least one yaw rate of the machine tool. Furthermore, it is also conceivable that the at least one sensor unit is at least one acoustic sensor, in particular at least one microphone, which detects at least one operating sound of the machine tool. The at least one operating sound is generated by the machine tool as soon as the machine tool is operated. In an alternative embodiment, at least one magnetic field sensor for the at least one sensor unit is conceivable. The at least one magnetic field sensor detects at least one magnetic field of the machine tool as soon as it is operated.

In addition, it is conceivable that the at least one sensor unit is designed as at least one position sensor which detects at least one position of the machine tool as soon as the suction connection adapter is connected to the machine tool. In addition, at least one motion sensor is possible as the at least one sensor unit which detects at least one movement of the machine tool when it is connected to the machine tool by means of the suction connection adapter.

The at least one sensor unit enables the at least one sensor device to produce the universal communication interface, since the at least one sensor unit detects the at least one operating signal, regardless of which type of machine tool the at least one operating signal is generated. This increases the user-friendliness and in particular the working speed of the user. The machine tool, in particular the hand tool, generates the at least one operating signal during its operation. The at least one operating signal may include the at least one vibration caused by a rotation of a machine tool motor and / or a machining of a workpiece. In addition, the at least one operating signal can be at least one rate of rotation, in particular at least one partial rotation of the machine tool, the at least one operating sound, in particular at least one acoustic sound or the at least one magnetic field of the machine tool during operation. Alternatively, the at least one operating signal may be the at least one position or the at least one movement of the machine tool. Examples of machine tools in this case are a table-top circular saw, a belt sander, a table-top planer and other machine tools that appear appropriate to a person skilled in the art. Examples of hand-held power tools include a grinder, a screwdriver, in particular a cordless screwdriver or a mains-powered screwdriver, a rotary impact driver, a drywall screwdriver, a percussion drill, a hammer drill, a core drill, an angle grinder, an eccentric, an orbital sander, a jigsaw Demolition hammer, a circular saw, a hand plane or other, hand-held known to those skilled, power tools.

The at least one sensor device preferably comprises at least one signal processing unit which is designed to receive the at least one operating signal from the at least one sensor unit and to process it into at least one communication signal. The at least one signal processing unit is in this embodiment of the invention substantially in

Sensor device housing arranged. For example, by means of at least one microprocessor and / or at least one microcontroller, the at least one signal processing unit processes the at least one operating signal into the at least one communication signal. The at least one communication signal comprises at least one operating state of the machine tool, in particular of the handheld power tool, such as switched on or off, or at least one filtered signal derived from the at least one operating signal. Thus, the at least one signal processing unit makes it possible to extract information of the machine tool by means of the at least one operating signal and into which at least one communication signal is transmitted. signal to process. The at least one communication signal is essentially a data-reduced form of the at least one operating signal.

Advantageously, the at least one sensor device has at least one communication unit which is designed to receive the at least one communication signal from the at least one signal processing unit, to provide at least one communication connection with a suction device, in particular with a suction device communication unit, and to forward the at least one communication signal. The at least one signal processing unit is additionally provided to forward the at least one communication signal to the at least one communication unit. The at least one communication unit is also arranged substantially in the sensor device housing. The at least one communication connection connects the at least one communication unit to the at least one suction device communication unit, so that at least one unilateral communication flow takes place, wherein at least a two-sided communication flow would also be possible. In the context of the present invention, "unilateral communication flow" means that the at least one communication signal is transmitted from the communication unit to the suction unit communication unit and there is substantially no communication from the at least one suction unit communication unit to the communication unit and the suction device communication unit, so that at least one communication signal is transmitted from the communication unit to the suction device communication unit, and at least one suction device communication signal is transmitted from the suction device communication unit to the communication unit. In this case, the at least one suction device communication signal may comprise at least one operating signal of the suction device.

The suction device additionally comprises the at least one suction device communication unit, wherein the at least one suction device communication unit is arranged substantially in the suction device housing. Preferably, the at least one suction device communication unit is wired to the suction device control. In addition, the at least one suction device communication unit transmits the at least one communication signal to the suction device control unit. The at least one suction device communication unit is at least one communication unit of the suction device, that is to say a communication unit.

In the context of the present invention, the at least one communication unit is designed to transmit and / or receive communication signals. The communication signals can be transmitted by wire, via a wire connection or via printed conductors on a printed circuit board, and / or the communication signals can be transmitted wirelessly. A wireless transmission of the communication signals can be in the form of Bluetooth, WLAN, infrared, near-field communication (NFC) by means of RFID technology, as well as other, known in the art, wireless transmission of the communication signals. Communication protocols used here can be Bluetooth Smart, GSM, UMTS, LTE, ANT, ZigBee, LoRa, SigFox, NB-loT, BLE, IrDA, as well as other communication protocols familiar to the person skilled in the art.

Thus, the at least one communication unit makes it possible to provide the universal communication interface and to establish an indirect connection between the machine tool and the suction device. In particular, the at least one communication unit of the machine tool makes it possible to communicate with the suction device via the at least one sensor device, regardless of which type of machine tool is connected to the suction connection adapter. This increases the user-friendliness and, in particular, increases the efficiency of the user's work processes.

In a preferred manner, the at least one communication connection is designed as a wireless communication connection. The at least one communication unit transmits the at least one communication signal wirelessly via the at least one communication connection to the at least one suction device communication unit. By means of the wireless communication connection, the susceptibility of the at least one communication connection to physical influences is reduced and the reliability of the at least one communication connection is increased. In order for the at least one communication unit and the suction unit communication unit to be able to enter the wireless communication connection, the two communication units must perform a pairing operation or a pairing. In the context of this invention, the coupling process, also referred to as "pairing", means that two communication units record a wireless connection, register each other and then communicate with each other, where the pairing may be via a first or second communication path the pairing takes place via a Bluetooth connection, whereby after successful coupling further communication also takes place via the Bluetooth connection The second communication path involves pairing via near field communication (NFC), in which the suction connection adapter, in particular the at least one communication unit, and the suction device , in particular the suction device communication unit, are brought into an immediate area relative to one another, thereby coupling the suction connection adapter and the suction device, wherein a subsequent communication then via a Bluetooth Verbindu The person skilled in the art is sufficiently familiar with the course of the coupling process, as well as the pairing and the pairing via the first or second communication path, between two communication units, which is why this is not discussed in greater detail here.

The at least one sensor device thus comprises the at least one sensor unit, the at least one signal processing unit, the at least one communication unit and the at least one sensor device power supply unit. In this case, these elements can preferably be arranged within a sensor device housing or alternatively within a plurality of sensor device housing. Further, these elements can be arranged in an advantageous manner on at least one printed circuit board, so that they are interconnected by means of conductor tracks, wherein it is also conceivable that these elements are wired together, if they are not arranged on the at least one printed circuit board. In a preferred manner, the at least one sensor unit with the at least one signal processing unit is wired, in particular arranged on at least the same printed circuit board, so that the at least one operating signal directly and directly from the at least one sensor unit to the at least one signal processing unit is transmitted. As described above, the at least one signal processing unit processes the at least one operating signal into the at least one communication signal. Subsequently, the at least one communication signal is preferably forwarded by means of interconnects from the at least one signal processing unit to the at least one communication unit, since the at least one communication unit is preferably arranged on the same circuit board as the at least one signal processing unit. Alternatively, the at least one signal processing unit and the at least one communication unit are designed to be wired. In an alternative embodiment, it is conceivable that the elements of the at least one sensor device are also connected to one another wirelessly.

In a first embodiment of the invention, the at least one signal processing unit is additionally designed to convert the at least one operating signal into at least one evaluation signal by means of at least one evaluation unit. The at least one evaluation unit is provided to forward the at least one evaluation signal as the at least one communication signal. The at least one signal processing unit comprises the at least one evaluation unit, wherein the at least one evaluation unit is arranged substantially in the signal processing unit.

The at least one sensor unit transmits the at least one operating signal directly and directly to the at least one signal processing unit. The at least one operating signal is then processed within the signal processing unit, in particular in the at least one evaluation unit, by means of, for example, a microprocessor and / or microcontroller. In an at least first evaluation step, at least substantially the at least one operating signal is filtered by means of, for example, at least one bandpass filter. Here, possible disturbance variables which may be contained at least partially in the at least one operating signal are essentially filtered in order to enable a further evaluation. Possible disturbance variables which may influence the quality of the at least one operating signal are, for example, influences from a working environment of the user, influences by the user himself, influences by the suction device or further disturbing variables appearing useful to the person skilled in the art which affect the quality of the at least one Betriebssig- influence nals. In particular, disturbance variables are essentially movements which result in an acceleration value and are generated by the operation of the connected machine tool, such as movements of the machine tool and / or the suction device, vibrations and / or the transport of the machine tool and / or the suction device.

In the event that negative signal values are contained in the at least one operating signal, the magnitude of the at least one operating signal is formed in an at least second evaluation step, so that the at least one operating signal comprises substantially positive signal values. Subsequently, in an at least third evaluation step, the at least one operating signal is at least partially smoothed. The smoothing of the at least one operating signal in the at least third evaluation step is performed by the moving average method. After that, the at least one operating signal is processed in an at least fourth evaluation step by means of an algorithm, such as a Schmitt trigger, into which at least one evaluation signal is processed. As a result, a conversion of the at least one operating signal into the at least one evaluation signal is made possible. The at least one evaluation signal is forwarded thereon as the at least one communication signal to the at least one communication unit. The at least one evaluation signal comprises at least substantially information about the at least one operating state and / or the at least one operating parameter of the machine tool, in particular of the handheld power tool, in a data-reduced form. In particular, the at least one evaluation signal comprises the information about the machine tool "turned on" or "turned off". The at least one evaluation signal is thus at least one evaluated operating signal.

This allows fast and efficient signal processing and increases the speed of operation. In an alternative embodiment, it is conceivable to carry out a different sequence of the evaluation steps in order to get from the at least one operating signal to the at least one evaluation signal.

In a second embodiment, the at least one signal processing unit is additionally designed to provide, by means of at least one filter unit, the at least one signal processing unit. least to convert an operating signal into at least one filter signal. The at least one filter unit is provided to forward the at least one filter signal as the at least one communication signal. The at least one signal processing unit additionally has the at least one filter unit. Preferably, the at least one filter unit is arranged substantially in the signal processing unit.

Also in the second embodiment, the at least one sensor unit forwards the at least one operating signal directly and directly to the at least one signal processing unit. The at least one operating signal is then processed by the signal processing unit, in particular the at least one filter unit, by means of, for example, a microprocessor and / or microcontroller. After the at least one filter unit has received the at least one operating signal, at least substantially the at least one operating signal is filtered by means of, for example, at least one bandpass filter in an at least first filtering step. Also in the second embodiment, possible disturbance variables which may be at least partially contained in the at least one operating signal are essentially filtered. Possible disturbances are, as described above. In the case of negative signal values of the at least one operating signal, the magnitude of the at least one operating signal is formed in an at least second filtering step. As a result, the at least one operating signal has substantially positive signal values. Then, in an at least third filtering step, the at least one operating signal is at least partially smoothed. In the second embodiment too, the smoothing of the at least one operating signal in the at least third filtering step takes place by means of the moving average method. After the at least third filtering step, the at least one operating signal is converted into the at least one filter signal. Thereafter, the at least one filter unit forwards the at least one filter signal as the at least one communication signal to the at least one communication unit. The at least one filter signal thus comprises at least substantially data-reduced information about the at least one operating state and / or the at least one operating parameter of the machine tool, in particular of the handheld power tool. The at least one filter signal is thus at least one prefiltered operating signal. The filter steps described essentially serve this purpose by means of the at least one sensor unit detected to process at least one operating signal into a stable and unique signal.

Thus, a simple and compact sensor device is provided. Alternatively, it would be possible to carry out a different sequence of the filter steps in order to get from the at least one operating signal to the at least one filter signal.

In both embodiments, the at least one operating signal is an analog signal, so that the at least one operating signal is generated in an analog form by the machine tool, in particular hand tool machine. The at least one sensor device is set up to detect the at least one operating signal, in particular the analog signal, and to process it into the at least one communication signal. In this case, essentially no conversion of the analog at least one operating signal takes place, so that the at least one communication signal is essentially still an analog signal. The at least one sensor device then transmits the analog at least one communication signal to the suction device, in the analogous form. It is conceivable that the analogue at least one operating signal is essentially converted into a digital signal. The transformation into a digital one

Signal of the analog at least one operating signal can be performed substantially by the at least one sensor device or by the suction device. For this purpose, the at least one sensor device may additionally comprise at least one analog / digital converter unit (A D converter unit). The at least one A D converter unit converts the analog signal into the digital signal by means of a suitable evaluation algorithm. The person skilled in the art, the operation and the structure of at least one A / D converter unit is well known, which is why will not be discussed in detail here. The at least one A / D converter unit is essentially within the

Sensor device housing arranged. Preferably, the at least one A / D converter unit is designed as a separate element of the at least one sensor device. However, it is also conceivable that the at least one A / D converter unit by the at least one sensor unit, the at least one signal processing unit, the at least one evaluation unit, the at least one Filter unit and / or the at least one communication unit is included. Thus, it is possible that the at least one operating signal is converted into a digital signal, so that the elements of the at least one sensor device substantially process the digital at least one operating signal. Therefore, the digital at least one operating signal is then processed into the at least one communication signal in digital form. In particular, the at least one evaluation signal or the at least one filter signal is then present in digital form. The suction device then processes the digital at least one communication signal.

Alternatively, it is also conceivable that the suction device has the at least one A D converter unit. In particular, it is possible that the at least one A / D converter unit is arranged as a substantially separate element within the suction device housing or at least partially by the at least one Sauggerätkommunikationseinheit and / or the Sauggerätsteuerungseinheit is included. Thus, the at least one operating signal is processed in the at least one communication signal in analog form by the at least one sensor device and then transmitted to the suction device. Subsequently, the suction device then converts the analog at least one communication signal into the at least one communication signal in digital form and evaluates it.

The at least one sensor device thus enables the suction device to perform an auto-start function for essentially all machine tools, in particular hand-held power tools. The auto-start function for mains-powered suction devices with the suction device mains socket on the suction device housing is well known from the prior art. For mains-operated suction devices, a mains-operated power tool can be connected to the suction device mains socket. The autostart feature allows the mains operated vacuum device to start automatically as soon as a load-dependent current is present at the suction device power outlet. This load-dependent current is present as soon as the mains-operated power tool is operated. The skilled person is the operation of the auto-start function in mains-powered suction devices with the Sauggerätnetzsteckdose, especially when using the mains powered Electric machine tool, well known, which is why not discussed here in detail.

The Absauganschlussadapter invention with the at least one sensor device allows the suction device, the auto-start function regardless of whether it has a Sauggerätnetzsteckdose and what type of power supply the machine tool is. To activate the autostart function, the user places the suction device operating element on the suction device operating unit and / or the at least one operating unit of the at least one sensor device sets the at least one operating element to an autostart functional position. In the autostart function position, the at least one sensor unit is activated so that it detects the at least one operating signal. An activation of the at least one sensor device essentially takes place only when the autostart function position is set by the user. Alternatively, in the autostart function position, the suction device switches off the voltage supply for the at least one sensor device, so that the at least one sensor device is only supplied with energy in the autostart functional position. As soon as the at least one sensor unit registers the at least one operating signal, the sequence of steps takes place, as described above. In particular, the at least one operating signal is processed by means of the at least one sensor device into the at least one communication signal and transmitted via the wireless communication connection to the suction device, in particular to the suction device communication unit. The suction device communication unit then sends the at least one communication signal to the suction device control unit and this then controls and / or regulates the suction device drive.

As soon as the machine tool, in particular the handheld power tool, is no longer used by the user and the machine tool essentially produces no operating signal, the at least one sensor unit registers the changed at least one operating signal. Then the suction device is switched off by means of the missing at least one operating signal.

It is conceivable that the suction drive essentially has a wake, so that absent at least one operating signal, the suction by the suction device for a certain period is available. When autostart is activated Function is essentially the at least one sensor device permanently activated, so that the sensor unit substantially permanently monitors a change in the at least one operating signal. As a result, a fast and essentially immediate reaction of the at least one sensor device is made possible.

The suction device can be directly controlled and / or regulated by the substantially permanent activation of the at least one sensor device, in particular of the at least one sensor unit. It would also be possible for the at least one sensor device to switch to a sleep mode as soon as the autostart function has been activated. The at least one sensor device is then designed to wake up from the sleep mode as soon as the at least one sensor device, in particular the at least one sensor unit, detects a change in the at least operating signal. In addition, the user can set at least one trigger threshold value via the at least one operating unit of the at least one sensor device for activating the autostart function. The at least one triggering threshold value is dependent on a signal strength of the at least one operating signal. Thus, the autostart function is essentially triggered only when a certain signal strength of the at least one operating signal is reached and / or exceeded. This makes it possible for the user to trigger the autostart function depending on the machine tool used, in particular the hand tool machine. Thus, the auto-start function for substantially all machine tools, in particular hand tool machines, allows.

In an advantageous manner, the at least one sensor device is designed to control and / or regulate a suction device, in particular to change an operating mode of a suction device when the at least one sensor device registers at least one predefined signal. The suction device essentially comprises the operating modes "switched off", "switched on" and "auto-starting." Preferably, the suction device changes the operating mode from "switched on" to "automatic start" as soon as the at least one sensor device registers the at least one predefined signal the change from "autostart" to "turned on" is possible, which becomes at least a predefined signal essentially triggered and / or generated by the user. Preferably, the at least one predefined signal is a knocking of the user against the at least one sensor device. Also conceivable are further predefined signals which appear reasonable to the person skilled in the art. Thus, an increase in the working speed and a flexible adaptation of the

Operating mode of the suction device to the needs of the user allows.

In addition, the invention is based on a system with a Absauganschlussadapter, as described above, and a suction device, as shown above. Particularly preferably, the system additionally comprises a machine tool, in particular a hand tool machine.

Brief description of the drawings

The invention will be explained below with reference to preferred embodiments. The drawings below show:

1 shows an inventive suction connection adapter with a machine tool and a suction device in a schematic view.

2 shows the suction connection adapter according to the invention with a sensor device and a suction hose;

3 shows a sectional view of the suction connection adapter according to the invention;

4 shows the suction connection adapter according to the invention with the sensor device in an enlarged representation;

5 is a flowchart for explaining an auto-start function;

Description of the embodiments

1 shows a suction device 100 with a suction device housing 105, with a suction hose 110 and with a suction device communication unit 130 in a schematic view. In addition, FIG. 1 shows a suction connection adapter 10 according to the invention with a sensor device 40 and a machine tool 200, here embodied by way of example as a grinding device. The machine tool 200 comprises a machine tool housing 205 and a machine tool connection unit 210, see also FIG. 2. The sensor device 40 is on arranged the Absauganschlussadapter 10, in particular attached. In this embodiment of the invention, the suction hose 110 is releasably attachable to the suction device housing 105. In this embodiment, the suction device communication unit 130 is essentially located in the suction device housing. se 105 arranged. In addition, the suction device 100 has a sensor device 70. The suction device 100 has a suction device drive 119, a suction device power supply unit 118, a dust collecting device 120 and a dust collection filter element 123. In this case, the suction device housing 105 comprises the dust collecting device 120 and these are detachably connectable to one another by means of at least one locking element 124. The functioning and cooperation of the suction device drive 119, the suction device power supply unit 118 and the dust collecting device 120 are well known to the person skilled in the art. The suction device additionally comprises a suction device control unit 121, which is designed to control and / or regulate the suction device 100. The suction device housing 105 is additionally detachably connected to a first accessory carrier 125 and a second accessory carrier 126. A suction device holding means 127 has a suction device grip region 128 and is arranged on the suction device housing 105, in particular on one side of the suction device housing 105, in particular on an upper side of the suction device housing 105. The suction device grip region 128 is designed in particular to be enclosed by a hand of the user of the suction device 100 to become. By the suction device holding means 127, the suction device 100 can be advantageously carried during use or transportation. In addition, the suction device holding means 127 has two fastening elements 129. In this embodiment, the fastening elements 129 are formed as eyelets. The fasteners 129 serve as a mounting option, for example, a shoulder belt with two carabiners. The suction device holding means 127 is immovably connected to the housing 105 relative to the housing 105. It is also conceivable that the suction device holding means 127 is movably mounted relative to the housing 105, for example hinged. The suction device housing 105 has a suction device operating unit 140, wherein the suction device operating unit 140 comprises a suction device operating element 141 and a suction device display element 142. The sucker operating unit 140 is adapted to be operated by a user. By means of the suction device operating element 141, the user can switch on the suction device 100, switch it off or activate an auto-start function. The suction device display element 142 thereby indicates to the user a set operating mode of the suction device 100. The suction device display element 142 can be switched on and / or off by means of the suction device control element 141. The dust collecting device 120 is substantially cylindrical, in particular substantially as a truncated cone formed. The dust collecting device 120 includes a stand element 150, which is intended to increase the stability of the suction device 100. The stand element 150 increases a diameter of the contact surface of the suction device 100. In particular, the

Contact points of the suction device 100 with a footprint 155 increases. Furthermore, the standing element 150 is set up to increase the ergonomics of the suction device 100. In an advantageous manner, the standing element 150 comprises at least one gripping region, which may be formed by way of example as a recess. Advantageously, the standing element 150 is shock-absorbing, in particular it is for this purpose formed of an elastic material. It is also possible for a suction device moving unit, which comprises rollers for example, to be arranged on the upright element 150. In an alternative embodiment, it is conceivable that the stand element 150 has a substantially rectangular cross section, which is suitable, in particular compatible, to existing transport containers, in particular dust collection devices.

The detachable connection of the suction device housing 105 with the dust collecting device 120 is made via the at least one locking element 124. The at least one locking element 124 is disposed on a suction device housing exterior 135 in this embodiment. The at least one locking element 124 is movably arranged on the suction device housing 105, in particular connected thereto. In addition, the at least one locking element 124 produces a non-positive and positive connection between the suction device housing 105 and the dust collecting device 120. In this embodiment, the suction device housing 105 comprises two locking elements 124, which are arranged opposite one another on the suction device outer side 135 of the suction device housing 105. Advantageously, the first accessory carrier 125 is provided to the suction hose

110 store. In particular, the first accessory carrier 125 is designed to securely store the suction hose 110, so that the suction hose 110 does not hinder the user during transport of the suction device 100. The second accessory carrier 126 in this embodiment comprises three receiving openings intended to receive at least three accessory elements 136. The Accessories 136 may be plugged into one another such that more than three accessories 136 may be received by the second accessory carrier 126. Preferably, tube elements 137 which can be connected to one another by the accessory carrier 126 can be received.

In this embodiment, the suction device 100 is designed as a battery-operated suction device, which is operated by means of at least one rechargeable battery 122, in particular by means of a handheld power tool battery bag. Thus, the required energy for the suction device 100 is provided by the at least one suction device power supply unit 118 by means of the at least one battery 122. In addition, the suction device indicator 142 is formed as a state of charge indicator. The charge state indicator is configured to indicate the state of charge of the battery 122. In an advantageous manner, the state of charge of the battery 122 can be displayed via the suction device display element 142 during the operation of the suction device 100. In addition, it is conceivable for the suction device display element 142 to display further information about the battery 122, the suction device 100 or also about the degree of filling of the dust collecting device 120.

The suction hose 110 comprises a suction opening 111 and is detachably attachable to the suction device housing 105, see also FIG. 2. The suction opening 111 is adapted to receive accumulating particles, in particular dirt particles, during operation of the suction device 100 and forward them to the dust collecting device 120 by means of the suction hose 110 , The suction hose 110 can be detachably connected to the machine tool 200, in particular the handheld power tool, by means of the suction connection adapter 10.

In Fig. 2, the suction connection adapter 10 according to the invention is shown enlarged enlarged. The suction connection adapter 10 according to the invention has a tubular basic body 13 with a first and at least one second end region 11, 12. At the first end region 11, a machine connection unit 20 is arranged. A suction device connection unit 30 is disposed at the second end portion 12. As shown in FIG. 2, the first end portion 11 is substantially directed to the machine tool 200. The second end region 12 lies on an opposite side of the first end region 11, in particular of the suction device 100. The tubular Base body 13 is configured to expand a suction flow generated by the suction device 100 via the suction connection adapter 10 into a housing 205 of the machine tool 200. The machine connection unit 20 forms a detachable connection with the machine tool 200, in particular hand tool machine. For this purpose, the machine tool 200, in particular the machine tool housing 205, comprises a machine tool connection unit 210. The machine tool connection unit 210 is configured to receive the machine connection unit 20. The machine connection unit 20 produces an axial and radial lock with the machine tool housing 205. For this purpose, the machine connection unit 20 comprises a form-fitting element 21, for example in the form of a groove 22. The machine tool connection unit 205 has a compatible positive-fit receiving element which is designed to receive the mold closing element 21, for example in the form of a spring.

The suction device connection unit 30 is arranged on the second end region 12 of the suction connection adapter 10 and establishes a detachable connection with the suction hose 110 of the suction device 100. The suction device connection unit 30 is designed to produce a detachable axial and / or radial securing of the suction hose 100. The suction device 100 comprises a suction device connection unit 115 with a tubular basic body 117, so that the detachable axial and / or radial securing can be produced. The Sauggerätanschlusseinheit 30 is exemplified as a sleeve. The Sauggerätan- final unit 30 has a receiving unit 31 which is adapted to form a positive and non-positive connection with the Sauggerätverbindungseinheit 115. For this purpose, the suction device connection unit 115 comprises a securing unit 116. In this embodiment, the receiving unit 31 is formed corresponding to the securing unit 116 so that the receiving unit 31 can receive the securing unit 116 and the positive and non-positive connection is established.

The suction connection adapter 10 comprises the sensor device 40. The sensor device 40 comprises a sensor device housing 41 and is arranged, in particular attached, on the suction connection adapter 10. In this embodiment The sensor device 40 is arranged on a machine-connection-side region, in particular on the first end region 11. Alternatively, it would also be possible for the sensor device 40 to be arranged on a suction-device connection-side region, in particular in the second end region 12. The sensor device 40 is mechanically connected to the suction connection adapter 10.

The sensor device 40 is designed to detect the operating signal 210 of the machine tool 200, in particular of a handheld power tool, see also FIG. 1. Subsequently, the sensor device 40 processes the operating signal 210 into a communication signal 60 and transmits it by means of a communication connection 80 to the suction device 100, in particular to the suction device communication unit 130, see also FIG. 3. In this embodiment, the communication connection 80 is designed as a wireless communication connection 81.

FIG. 3 shows a sectional view of the suction connection adapter 10. In particular, FIG. 3 shows a screw connection 50 by means of screws 51 of the sensor device 40 with the suction connection adapter 10. In addition, the communication unit 48 is shown arranged on a printed circuit board 59.

FIG. 3 shows a schematic representation of the sensor device 40 with an enlarged detail. The sensor device 40 has a sensor device power supply unit 41, which supplies the sensor device 40 with energy. In this embodiment, the sensor device power supply unit 41 is supplied with energy via a battery, in particular at least one button cell. Alternatively, the energy supply would be possible via a battery unit by means of energy harvesting.

In this embodiment of the invention, the at least one sensor device 40 has a sensor unit 46. The sensor unit 46 detects the operating signal 210 of the machine tool 200, in particular the handheld power tool. In this embodiment, the sensor unit 46 is designed as an acceleration sensor, which detects the operating signal 210 of the machine tool 200, in particular its vibrations during operation. The acceleration sensor essentially detects acceleration values of three spatial directions. 90. However, other sensor units that appear reasonable to the person skilled in the art are also conceivable. In this embodiment, the machine tool 200, in particular the handheld power tool, generates the operating signal 210 during its operation. The operating signal 210 is the vibration due to a rotation of a machine tool motor and / or a machining of a workpiece. Due to the connection of the machine tool 200 with the suction connection adapter 10, the sensor unit 46 can detect the operating signal 210.

As described above, the sensor device 40 additionally has the signal processing unit 47 as well as the communication unit 48. The sensor unit 46 transmits the detected operating signal 210 to the signal processing unit 47. Thereafter, the signal processing unit 47 processes the operating signal 210 into the communication signal 60, for example by means of at least one microprocessor and / or at least one microcontroller. The communication signal 60 includes information about an operating state of the machine tool 200, in particular of the handheld power tool, such as switched on or off or at least a prefiltered signal or other, the expert appears useful as operating parameters. In addition, the signal processing unit 47 transmits the communication signal 60 to the communication unit 48, in particular conducted.

The communication unit 48 is provided to receive the communication signal 60 from the signal processing unit 47. The communication unit 48 provides the communication link 80 with the Sauggerätkommunikation- unit 130 and transmits the communication signal 60 to the Sauggerätkommunikationseinheit 130, see also Fig. 2. The communication link 80 is made wirelessly in this embodiment.

As shown in FIG. 4, the sensor device 40 includes the sensor unit 46, the signal processing unit 47, the communication unit 48, and the sensor device power supply unit 45, more specifically, these elements are disposed inside a sensor housing 41. The sensor unit 46 has a line binding 56 with the signal processing unit 47, so that the operating signal 210 is transmitted directly and directly. The signal processing processing unit 47 processes the operating signal 210 into the communication signal 60. Thereafter, the signal processing unit 47 sends the communication signal 60 to the communication unit 48 by means of a line link 57, 58. The sensor device 40 also comprises an operating unit 42. In addition, the operating unit 42 has an operating element 43 and a display element 44 on. The

Control unit 42 allows the user to operate the sensor device 40, in particular turn on and off. The operating unit 42 of the sensor device 40 is likewise provided to provide and display an operating state and / or an operating parameter and / or an operating information of the sensor device 40 and / or the suction device 100 for the user.

In this case, it would be possible for the operating unit 42 to indicate whether the sensor device 40 is switched on or off, whether the autostart function is activated, how the charge state of the battery 122 of the suction device 100 is, or further information that appears appropriate to the person skilled in the art. Alternatively, it is conceivable that the operating unit 42 of the sensor device 40 indicates the operating state of the machine tool 200. In addition, the operating unit 42 of the sensor device 40 is designed to change operating states and / or operating parameters of the sensor device 40 and / or the suction device 100 via the operating element 43 and / or the display element 44, in particular the sensor device 40 and / or the suction device 100 to control and / or to regulate. The operating states and / or operating parameters of the sensor device 40 are exemplary as described above. In this embodiment, the operation unit 42 of the sensor device 40 is disposed on the sensor device housing 41. In addition, the sensor device 40 may include an analog-to-digital converter unit 49 (A / D converter unit). The at least one A D

Converter unit 49 converts an analog signal by a suitable evaluation algorithm into a digital signal as described above.

FIG. 4 schematically shows a first embodiment of the invention as well as a second embodiment of the invention. In the first

According to an embodiment of the invention, the signal processing unit 47 additionally has an evaluation unit 52. The evaluation unit 52 is provided to process the operating signal 210 into an evaluation signal 53. Subsequently, the evaluation unit 52 transmits the evaluation signal 53 as the communication signal 60 to the communication unit 48 by means of a line connection 57. The communication unit 48 is configured to receive the evaluation signal 53 as a communication signal 60 and to send the communication signal 60 to the suction device communication unit 130 via the communication connection 80. The suction device communication unit 130 receives the communication signal 60 and forwards it to the suction device control unit 121 in a wired manner, see also Fig. 2. The suction control unit 121 receives the communication signal 60 and then controls and / or controls the suction device 10.

In the second embodiment of the invention, the signal processing unit 47 additionally comprises a filter unit 54, which is designed to convert the operating signal 210 into a filter signal 55. The filter unit 54 forwards the filter signal 55 as the communication signal 60 to the communication unit 48 by means of a line link 58. The communication unit 48 wirelessly transmits the communication signal 60 to the suction device communication unit 130 via the communication connection 80. The suction unit communication unit 130 receives the communication signal 60 and transmits it to the suction apparatus control unit 121 by wire. The suction control unit 121 evaluates and controls the communication signal 60, in particular the filter signal 55 / or controls the suction device 100.

Fig. 5 is a flowchart for explaining the sensor device 40 and the auto-start function. The user activates the autostart function 300 in which the user sets the sucker operating element 141 or the operating element 43 of the sensor device 40 to an autostart function position 310. As a result, the sensor unit 46 of the sensor device 40 is activated and the sensor unit 46 is in an activated state 320. The sensor unit 46 begins to monitor the machine tool 200, in particular the handheld power tool, so that the operating signal 210 can be detected. In this case, the sensor unit 46 is then in a monitoring state 330. As soon as the machine tool is in operation 340, the sensor unit 46 detects the operating signal 210 and the suction device 100 is started. In this case, then, the suction device 100 is in an activated state 350. During the activated state 350 of the suction device 100, the sensor unit 46 remains in the monitoring state 330 and continues to detect the operation 340 of the machine tool 200. Once the machine tool 200 is no longer in operation 340, this change is made the sensor unit 46 is detected and the suction device 100 is deactivated 360. A message is then sent to the user about this state change of the machine tool 200 to the Sauggeratanzeigeelement 142 and / or the display element 44 of the sensor device 40.

In the event that the Sauggerätbedienelement 141 and the control element 43 of the sensor device 40 are not on the autostart function position 310, information to the Sauggeratanzeigeelement 142 and the display element 44 of the sensor device 40 is also transmitted. This informs the user that the sensor device 40 is not yet activated and the autostart function 300 is not available. In particular, the user is informed that the autostart function position 310 has not yet been set.

Claims

claims

Claim 1

Suction connection adapter (10) for a suction device (100), with at least one machine connection unit (20) and with at least one suction device connection unit (30), wherein the at least one machine connection unit (20) can be detachably connected to a machine tool (200), in particular a handheld power tool is, and the at least one Sauggeratanschlusseinheit (30) with a suction hose (110) of a suction device (100) is detachably connectable, characterized in that the Absauganschlussadapter (10) at least one sensor device (40).

Claim 2

Suction connection adapter (10) according to claim 1, characterized in that the at least one sensor device (40) comprises at least one sensor unit (46) which is designed to detect at least one operating signal (210) of the machine tool (200), in particular of the handheld power tool ,

Claim 3

Absauganschlussadapter (10) according to claim 1 or 2, characterized in that the at least one sensor device (40) comprises at least one signal processing unit (47) which is adapted to the at least one operating signal (210) from the at least one sensor unit (46) receive and process in at least one communication signal (60). Claim 4

Absauganschlussadapter (10) according to claim 3, characterized in that the at least one sensor device (40) has at least one communication unit (48) which is adapted to receive the at least one communication signal (60) from the at least one signal processing unit (47), at least one communication connection (80) with a suction device (100), in particular with a Sauggerätkommunikationseinheit (130) to provide and forward the at least one communication signal (60).

Claim 5

Absauganschlussadapter (10) according to claim 3 or 4, characterized in that the at least one signal processing unit (47) is additionally designed by means of at least one evaluation unit (52) to convert the at least one operating signal (210) into at least one evaluation signal (53), and the at least one evaluation unit (52) is provided to forward the at least one evaluation signal (53) as the at least one communication signal (60).

Claim 6

Absauganschlussadapter (10) according to claim 3 or 4, characterized in that the at least one signal processing unit (47) is additionally adapted by at least one filter unit (54) to convert the at least one operating signal (210) in at least one filter signal (55), and the at least one filter unit (54) is provided to forward the at least one filter signal (55) as the at least one communication signal (60). Claim 7

Absauganschlussadapter (10) according to one of claims 4 to 6, characterized in that the at least one communication link (80) as a wireless communication link (81) is formed.

Claim 8

Absauganschlussadapter (10) according to any one of the preceding claims, characterized in that the at least one sensor device (40) has at least one control unit (42), wherein the at least one control unit (42) at least one control element (43) and / or at least one display element ( 44).

Claim 9

Absauganschlussadapter (10) according to any one of the preceding claims, characterized in that the at least one sensor device (40) is adapted to control a suction device (100) and / or to regulate, in particular to change an operating mode of a suction device (100), if the at least one sensor device (40) registers at least one predefined signal.

Claim 10

System with a suction connection adapter (10) according to one of the preceding claims and with at least one suction device (100).

Claim 1 1

System according to claim 10, characterized in that it additionally comprises a machine tool (200), in particular hand tool machine.