EP3787842A1

EP3787842A1 - Machine tool device

Info

Publication number: EP3787842A1
Application number: EP19714603.8A
Authority: EP
Inventors: Andras VIGH; Janos SOLTESZ; Ulrich Bohne
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2018-05-04
Filing date: 2019-03-27
Publication date: 2021-03-10
Anticipated expiration: 2039-03-27
Also published as: DE102018206876A1; WO2019211048A1; EP3787842B1; CN112074373A

Abstract

The invention relates to a machine tool device comprising at least one switch unit (12a), at least one electronic unit (14a) and at least one support unit (20a) that can be disposed on a housing unit (16a; 16b) of a machine tool. According to the invention, the support unit (20a) is intended to accommodate the switch unit (12a) and the electronic unit (14a).

Description

description

Machine tool device

State of the art

It is already a machine tool device with at least one scarf tereinheit, with at least one electronic unit and with at least one can be arranged on a housing unit of a machine tool carrier unit, pre-strike.

Disclosure of the invention

The invention relates to a machine tool device with at least one switch unit, with at least one electronic unit and with at least one can be arranged on a housing unit of a machine tool Trä gereinheit.

It is proposed that the carrier unit is provided for receiving the scarf unit and the electronic unit.

The machine tool device is preferably intended for use in the machine tool, in particular in an electric screwdriver. In particular, the machine tool device as a Vormontagebau group, in particular as an electronic pre-assembly, trained for the machine tool. Preferably, the carrier unit is at least teilwei se within the machine tool, in particular within the Gehäuseein unit, can be arranged. In particular, the carrier unit can be arranged on an inner side of a housing shell element of the housing unit. Preferably, the Carrier unit can be arranged directly or indirectly on the housing unit. In particular, the carrier unit can be arranged on at least one further component of the work generating machine device on the housing unit, in particular attached to the housing unit, be. Preferably, the machine tool device, in particular the electronic unit, for controlling and / or regulating the machine tool, in particular a drive train unit of the machine tool provided. "Provided" is to be understood in particular to be specially programmed, specially configured, specially designed and / or specially equipped. The fact that an object is intended for a specific function is intended in particular to mean that the object fulfills and / or executes this specific function in at least one application and / or operating state.

An "electronic unit" is to be understood as meaning in particular a unit having at least one control electronics. Under a "control electronics" in particular a special unit with a processor unit and with a memory unit and with an operating program stored in the memory unit should be ver. The electronics unit preferably comprises a unit platinum. Preferably, the board unit of the electronic unit is designed as a printed circuit board. The electronic unit, in particular arranged on the circuit board unit, preferably comprises at least one microprocessor, an integrated circuit, in particular an application-specific integrated circuit (ASIC), a logical electronic circuit or the like. Preferably, the electronic unit has further components, for example cables and / or wires, in particular to an electrical connection to the carrier unit, the switch unit and / or components of the machine tool, such as a motor, on. The electronics unit is in particular for a control and / or Rege development of the machine tool, in particular the drive train unit, vorgese hen. In particular, the electronics unit is provided to activate the engine of the drive train unit, in particular in response to a signal of the scarf tereinheit, and / or disable, in particular to open a circuit or close. Preferably, the machine tool comprises a switching unit, which is provided at least for setting a direction of rotation of the Mo tor. Preferably, the electronics unit is provided, in particular in response to a signal of the switching unit, the motor to regulate a set direction of rotation. Preferably, the electronic unit is provided to identify a battery unit of the machine tool, for example, based on a Kodierwiderstands the battery unit. In particular, the electronic unit may have a memory unit in which coding resistances of battery units that can be used with the machine tool are preferably stored. Preferably, the electronics unit is provided to compare a coding resistance of the battery unit with the stored coding resistors and to control and / or regulate energization of the motor by the battery unit as a function of a match of the detected coding resistance with at least one of the stored coding resistors. Preferably, the electronics unit by means of electrical energy of the Akkuein unit is operable. In particular, the board unit of the electronics unit is connected via line elements with at least one accumulator contact element of the factory generating machine device. Preferably, the line elements are soldered to the board unit. In particular, the accumulator contact element is provided to realize an electrical connection between the battery unit and the electronics unit. The electronic unit may preferably be provided for controlling and / or regulating further components and / or functions of the machine tool, by way of example displays.

The switch unit is provided in particular for activating and / or deactivating the motor, in particular via the electronics unit. The scarf tereinheit comprises for activating and / or deactivating the motor before preferably at least one switching element, such as a mechanical switch, a signal switch o. The like. Preferably, the switch unit at least one switching rod on. Preferably, the shift rod is mechanically and / or electrically coupled to the switching element. In particular, the shift rod is provided for an actuation of the switching element. The scarf tereinheit and / or the machine tool include / comprises to a Actuate supply of the switching element preferably at least one operating switch, in particular arranged on the shift rod, in particular fixed, can be. The actuation switch can be designed, in particular, as a push-button switch, as a slide switch, as a rocker switch or as another actuation switch which appears expedient to a person skilled in the art. Preferably, the switch unit, in particular the switching element, is provided to the Electronic unit, in particular electrical or electronic signal to provide in response to an actuation of the switching element. Preference, the switch unit to a provision of the signal via at least one signal line element, in particular a cable, electrically connected to the electronic unit. Preferably, one end of the Signalleitungsele element is arranged on the board unit of the electronic unit, in particular soldered to the board unit of the electronic unit. Preferably, another end of the signal line element is connected to the switch unit. Preference, the switch unit has at least one socket into which the far re end of the signal line element, in particular by means of a plug of the signal line element, can be inserted. Alternatively or additionally, it is conceivable that components of the machine tool device, in particular the Trägerein unit, the switch unit and / or the electronics unit, at least partially electrically conductive and / or integrated electrical Leitungsele elements, for example, conductor tracks have. Preferably, the socket is arranged on a side facing away from the shift rod of the switch unit.

The carrier unit is preferably formed at least substantially as a support plate or has at least one support plate. Preferably, the support plate is polygonal, in particular at least substantially square table, formed. Alternatively, it is conceivable that the carrier plate is at least substantially rectangular, elliptical or the like. The support plate is preferably formed as an injection molded component, preferably made of a plastic. The support plate is preferably on the housing unit of the machine tool, in particular on a housing shell element of the housing unit, can be arranged. In particular, the support plate is attached to at least one further construction part of the machine tool device, which is attached to the housing unit, in particular to a housing shell element of the housing unit. The support plate is preferably at least indirectly with the Gehäuseein unit, in particular with a housing shell element of the housing unit, a related party. In particular, the carrier unit has at least one plate arranged on the carrier Kontaktpin at least to a mechanical connection to the electronic unit, in particular with the board unit of the Elektronikein unit, on. In addition, it is conceivable that the contact pin to an electrical Ver connection with the electronic unit, in particular with the board unit of Elekt- unit, is provided. The carrier unit preferably has a plurality of contact pins. Preferably, the contact pin is cohesively bonded to the carrier plate. The contact pin can in particular be injected into the carrier plate or molded onto the carrier plate. The contact pin preferably extends at least substantially perpendicular to a main scale plane of the carrier plate away from the carrier plate. A "main extension plane" of an object is to be understood in particular a plane who the, which is parallel to a largest side surface of a smallest imaginary cuboid, which just completely surrounds the object, and in particular special runs through the center of the cuboid. The expression "substantially perpendicular" is intended to define, in particular, an orientation of a direction relative to a reference direction, the direction and the reference direction, in particular in one plane, including an angle of 90 ° and the angle a maximum deviation of, in particular, less than 8 °, advantageously less than 5 ° and particularly advantageously less than 2 °. The contact pin is preferably formed at least partially from a metal.

The board unit of the electronic unit preferably has at least one contact recess corresponding to the contact pin. Preferably, the board unit of the electronic unit comprises a plurality of Kontaktausnehmun gene, wherein each one of the contact recesses corresponds to each one of the plurality of contact pins. Preferably, the contact pin extends in a arranged on the carrier unit state of the board unit of the electronic unit at least substantially perpendicular to a Haupterstre ckungsebene the board unit through the contact recess therethrough. Before preferably the board unit is soldered to the contact recess with the contact pin. Preferably, the board unit of the electronic unit has a shape corresponding to a shaping of the carrier plate of the carrier unit, in particular to a dimensionally accurate arrangement on the carrier plate. Preferably, the main extension plane of the support plate and the main extension plane of the sinker unit are aligned in a arrange on the carrier unit th state of the electronic unit at least substantially parallel to each other. By "substantially parallel" is meant, in particular, an orientation of a direction relative to a reference direction, in particular in a plane, the direction being opposite the reference direction being a deviation. especially smaller than 8 °, advantageously smaller than 5 ° and particularly advantageously smaller than 2 °. Preferably, the carrier unit comprises at least one carrier element for receiving the switch unit or a switch receiving unit on the carrier plate. Preferably, the Trägerele element is arranged on the support plate, in particular integrally formed with the support plate. Preferably, the carrier element is ausgebil det as a latching rail. In particular, the carrier element is arranged on one of the electronics unit abge outside of the carrier plate. Preferably, the elec tronic unit, in particular the board unit of the electronics unit, and the switch unit at two at least substantially parallel to each other aligned and facing away from each other outer sides of the carrier plate angeord net. Preferably, the support plate is at least substantially disposed between the electronic unit, in particular the board unit of the electronic unit, and the switch unit.

The embodiment of the machine tool device according to the invention makes it possible to provide an advantageously compact and preassemblable electronic preassembly assembly for a machine tool. Before some of the most important to a control and / or regulation of the machine tool components are summarized and can be arranged together on a housing unit of the machine tool. It can be an advantageous easy to remove and thus advantageously conveniently exchangeable and / or maintainable Werkzeugmaschi nenvorrichtung be provided.

Furthermore, it is proposed that the carrier unit has at least one, in particular special injected, heat sink element, which is intended to cool the electronic unit. Preferably, the heat sink element is arranged on the carrier plate. Preferably, the heat sink element is injected into the carrier plate. Alternatively, it is conceivable that the heat sink element is molded onto the support plate, is bolted to the support plate is glued to the support plate, is soldered to the support plate o. The like. Preferably, the Kühlkör is made of a metal element. The heat sink element is preferably in contact with the electronic unit, in particular with the Platinenein unit of the electronic unit. Preferably, the heat sink element is provided to heat energy from the electronics unit, in particular from the board unit of the electronics unit to pick up and lead away from the electronics unit. In particular, the support unit may have at least one heat element attached to the heat sink element, such as a heat conduction paste, which is provided to support absorption of heat energy by the heat sink element.

Preferably, the heat sink element extends along an at least substantially complete maximum extent of the carrier plate in a first direction. Preferably, the heat sink element has at least two contact extensions. The contact extensions are formed as at least sections, in particular at least substantially vertical, angled portions of the Kühlkörperele element. The contact extensions are formed as two mutually remote ends of the heat sink element along a main extension direction of the heat sink element. The contact extensions preferably extend at least substantially perpendicular to the main extension direction of the heat sink element and to the main extension plane of the carrier plate away from the carrier plate, in particular in the direction of a side facing away from the switch unit side of the carrier plate. Preferably, the carrier unit has a plurality of heat sink elements, in particular three heat sink elements, the plate along a second, at least substantially perpendicular and aligned at least substantially parallel to the main extension plane of the support plate direction one behind the other on the support plate, in particular the carrier plate injected are. Preference, along the second direction on a first side of the carrier plate and on a second, the first side of the carrier plate side facing away from the carrier plate a plurality of contact extensions, in particular three Kon contact extensions, arranged one behind the other. Preferably, the Kühlkör perelemente limit an extension of the board unit of the electronic unit along the first direction. In particular, the board unit of the electronics unit may be fixed by the heat sink elements along the first direction. Preference, the board unit of the electronics unit extends along the second direction beyond the carrier plate. It can be achieved advantageously efficient cooling of the electronics unit. Advantageously, the carrier unit simultane- ously meet tasks of recording and cooling of the electronics unit. In addition, it is proposed that the electronic unit has at least one circuit board unit, which is electrically connected to the heat sink element. The heat sink element is in particular provided for electrically connecting the circuit board unit to further components of the machine tool device and / or the machine tool. Preferably, the board unit is electrically connected to all the heat sink elements of the carrier unit. Preferably, the board unit via the contact pin with the Kühlkör perelement is electrically connected. In particular, in each case a contact pin is electrically conductively connected to a respective heat sink element. In particular, the heat sink element is cohesively, for example by means of a Lötverbin tion, connected to the contact pin, preferably formed integrally with the contact pin. Preferably, the heat sink element is at least partially inner half of the support plate connected to the contact pin. In particular, the contact pin and / or the heat sink element extends at least partially within the carrier plate. Preferably, the heat sink element and the contact pin are integrally injected into the carrier plate. Preferably, the con tact pin is formed as a double pin. Preferably, the contact extensions are provided for electrical contacting with electrical connection elements of the electronic unit. In particular, at least one electrical connection element can be electrically connected to at least one contact extension, in particular soldered to the contact extension. In particular, the same electrical voltage is applied to each contact extension of the heat sink element.

Preferably, the heat sink element is provided to electrically connect the sinker unit to a motor of the machine tool. In particular, the heat-sink element, in particular at least one contact extension of the heat-sink element, can be electrically connected to at least one connection contact of the motor via at least one electrical connection element, for example a cable or a wire. In particular, the electrical connec tion element with the heat sink element, in particular with at least one contact extension of the heat sink element, and / or be soldered to the terminal contact of the motor. The engine is preferably formed out of a three-phase motor. Preferably, in each case a heat sink element, in particular in each case a contact extension of the heat sink element, in each case via an electrical connection element and in each case via a connection contact, each having an electrical connection element. see phase of the motor electrically connected. In particular, the electronic unit does not provide the motor with electrical energy for operation of the motor via the heat sink elements. Preferably, the board unit via at least one heat sink element can be electrically connected to a power source, in particular a battery unit, the machine tool. In particular, the engine via the heat sink element of the battery unit with electrical energy ver is ver. The heat sink element can fulfill an advantageous dual function. Advantageously can be dispensed with additional electrical contact elements.

It can be provided an advantageous cost-effective and compact trained Werkzeugma machine device, which allows an advantageous cost-effective and compact machine tool.

It is also proposed that the machine tool device comprises at least one switch receiving unit, the force and / or form-fitting, in particular special via a dovetail connection, at least one Trä gerelement the carrier unit arranged, in particular latched, is. The Trä gerelement is preferably designed as a latching rail, in particular with at least one notch. Preferably, the carrier element has a dovetail shape. Alternatively, it is conceivable that the carrier element is designed as a spring, as a bung or as another carrier element that appears meaningful to a person skilled in the art. Preferably, the carrier unit comprises two carrier elements. In particular, one of the support elements on the first side of the support plate and another of the support elements on the two th side of the support plate is arranged. The carrier element preferably has a main extension direction at least substantially parallel to the second direction. The switch receiving unit comprises at least one groove corresponding to the carrier element for a frictional and / or positive connection, in particular a latching, with the carrier element. Preference, the switch receiving unit comprises two grooves, each one of the grooves corresponds to one of the support elements. Alternatively, it is conceivable that the switch receiving unit has at least one carrier element and that the carrier unit has at least one groove corresponding to the carrier element of the switch receiving unit. Preferably, the scarf teraufnahmeeinheit comprises two switch receiving parts. Preferably, each of the switch receiving parts each comprises a groove for connection to one each Carrier element of the carrier unit. In particular, the Schalteraufnahmetei le main extension planes, which are aligned in an arrange on the carrier unit th state of the switch receiving unit at least substantially perpendicular to the main extension plane of the support plate. Advantageously, a secure and tool-free connection of the switch receiving unit with the carrier unit can be achieved.

It is also proposed that the switch receiving unit has at least one switch receiving element to an arrangement of the switch unit on the Trä gereinheit. Preferably, the switch receiving element is formed as a fort set of the switch receiving part. Preferably, a main extension direction of the extension extends at least substantially parallel to the groove of the switch receiving part. A "main extension direction" of an object should in particular be understood to mean a direction which runs parallel to a longest edge of a smallest geometric cuboid which just completely encloses the object. In particular, the scarf teraufnahmeelement is formed as an angled portion of the switch receiving part. In particular, an angled portion of the switch receiving part forms the Fort sentence. In particular, the switch receiving part is in an arranged on the Trägerein unit state of the switch receiving part along the first Rich direction in the direction of a center of the support plate angled. Preferably, the switch receiving unit has two switch receiving elements, wherein each one of the switch receiving elements is arranged on each of a switch receiving part. In particular, the switch unit is fixed between the switch receiving parts along the first direction. In particular, the Schalterein unit is at least substantially perpendicular to the main extension plane of the support plate fixed by the switch receiving elements. Advantageously, a safe and tool-free arrangement of the switch unit can be achieved on the carrier unit.

It is also proposed that the switch receiving unit has at least one coupling element for coupling to a housing unit of a machine tool. Preferably, the coupling element is formed as a fastening rib. In particular, the coupling element is arranged on the scarf teraufnahmeteil, preferably in one piece with the switch receiving part educated. Preferably, the coupling element is arranged on a side facing away from the groove of the switch receiving part. In particular, the coupling element extends at least substantially perpendicular to the main extension plane of the switch receiving part and at least substantially parallel to the second direction. Preferably, the switch receiving unit comprises two coupling elements, wherein in each case one of the coupling elements is arranged on in each case a switch receiving part. Preferably, the scarf teraufnahmeeinheit comprises at least one further coupling element. In particular, the further coupling element is arranged at a distance from the coupling element on the switch receiving part, in particular integrally formed with the Schalterauf receiving part. In particular, the further coupling element extends at least substantially parallel to the coupling element. Preference, the switch receiving unit comprises two further coupling elements, wherein each one of the coupling elements is arranged on each element a switch receiving. Preferably, the housing unit of the machine tool, in particular a housing shell element of the housing unit, at least one mounting extension on which the coupling element and / or the further coupling element can be arranged / is. Preferably, the tool is machine device by means of the coupling element without tools on the Ge housing unit, in particular on the mounting extension, can be arranged. By "eintei lig" should be understood in particular formed in one piece. Preferably, this is a piece of a single blank, a mass and / or egg nem casting, more preferably in an injection molding process, in particular a one- and / or multi-component injection molding process prepared. An advantageously convenient arrangement of the machine tool device on the housing unit of the machine tool can be made possible.

It is also proposed that the machine tool device comprises at least one accumulator contact element which is provided to a power supply to at least the electronics unit and which is connected via at least one, in particular at least substantially rigid, line element electrically at least one sinker unit of the electronics unit. The accumulator contact element is preferably formed at least partially as a contact plate. In particular, the accumulator contact element has at least one contact plug, which leads to an electrical contact with the battery unit the machine tool is provided. Preferably, the accumulator contact element has a plurality of contact plugs, wherein at least a first of the contact plug is provided for electrical contact with a positive pole of the battery unit and at least a second of the contact plug for electrical contact with a negative pole of the battery unit. A third of the contact plug can be provided for electrical contacting with a coding resistor of the battery unit. A fourth of the con tact plug can vorgese to detect a temperature of the battery unit hen. Preferably, the contact plug is arranged at least partially within the battery unit in a state of the battery unit arranged on the battery cell surface element. In particular, the contact plug can be provided with a force and / or positive connection, in particular a latch, with the battery unit. The accumulator contact element is provided in particular to electrically connect the battery unit to a power supply of the electric nikeinheit and / or the motor with the electronic unit. Preferably, the Akkumulatorkontaktelement is electrically connected via the contact plug with the battery unit and the line element of the electronic unit with the board unit.

The conduit element is designed in particular as an at least substantially rigid conduit element. The conduit member is preferably formed as a Ka bel. Preferably, the conduit element has a diameter, a length and / or a material which permits at least substantially stable positioning of the conduit element, in particular with the battery element contact element arranged on the conduit element

chen / permits. Preferably, the conduit element is deformable, in particular bendable, trained. In particular, the conduit element retains its, in particular special produced by a deformation of the conduit element, shape without the action of external forces, which are in particular stronger than a force of gravity, at the line element. In particular, the line element can be deformed in such a way that an at least substantially dimensionally accurate arrangement of the machine tool device, in particular of the battery mu loor rkontaktele- element, on the housing unit of the machine tool is made possible. In particular special is by a deformation of the line element a position of the Ak kumulororkontaktelements relative to the carrier unit, in particular a distance the accumulator contact element of the carrier unit, adaptable. Alternatively, it is conceivable that the conduit element is completely rigid, by way of example as a rigid metal wire, that the conduit member has an at least substantially substate shell o. The like. Preferably, the electrical connection element is formed at least substantially analogous to the conduit element. Preferably, the line element is at least partially guided on the switch receiving unit, in particular on the switch receiving part, in particular fixed. In particular, the switch receiving unit has at least one guide element, which is provided to a guide, in particular to egg ner fixation of the conduit member to the switch receiving unit, in particular on the switch receiving part. Preferably, the Füh is approximately element arranged on the switch receiving part, in particular integrally formed with the switch receiving part. Preferably, each scarf teraufnahmeteil the switch receiving unit is arranged in each case at least one guide element, which is to see a guide, in particular to a fixation of each at least one line element to the switch receiving part.

In particular, the conduit member is provided to attach the Akkumulatorkontak telement in a predetermined position relative to the carrier unit, in particular to the carrier plate to the board unit. Preferably, the line member attaches the accumulator contact element on the Pla tineneinheit that the switch unit and / or the switch receiving unit between tween the carrier unit, in particular the carrier plate, and the accumulator contact element are arranged on the carrier unit / is. The electronic unit preferably has at least two line elements which fix the battery cell contact element to the board unit. In particular, a first of the line elements electrically connects the board unit to the positive electrical pole of the battery unit and a second of the line elements the Platinenein unit electrically to the negative electrical pole of the battery unit, in particular via an electrical contact plug. Preferably, at least one of the line elements can be designed as a thermistor, in particular to limit an electrical inrush current. The electronics unit can have at least one further line element which can be fastened to the board unit and in particular to at least one of the contact plugs. Preferably, the electronic unit has at least two further Leitungsele elements, in particular a first further line element is electrically connected to the third contact plug and a second further line element is electrically connected to the fourth contact plug. The board unit is preferably provided to detect the coding resistor of the battery unit via the first further line element. The board unit is virtue, as intended to capture the tempera ture of the battery unit via the second further line element. In particular, the second further line element is at least partially designed as a temperature sensor, in particular as a thermistor. It is conceivable that the further line elements are formed ver different from the line elements. In particular, it is conceivable bar that the other line elements are provided only to a line of electrical current rule. Preferably, the line element is soldered to the board unit and / or to the accumulator contact element. Preference, the accumulator contact element of the board unit electrical energy from the battery unit on the line element available, which provides the Plati neneinheit at least partially via at least one heat sink element and at least one electrical connection element to the engine. In particular, it is conceivable for the circuit board unit and / or the accumulator contact element to convert / convert an electrical voltage and / or an electrical current of the battery unit into an electric voltage that can be used by the motor and / or an electric current that can be used by the motor. An advantageous simultaneous arrangement of the accumulator contact element in a predetermined position and a power supply of at least the electronic unit can be achieved.

Furthermore, the invention is based on a machine tool, insbesonde of an electric screwdriver, with at least one inventive work generating machine device. The machine tool is preferably designed as a hand tool machine, in particular as a wireless electric hand tool. In particular, the machine tool is designed as an electric screwdriver, in particular as a battery-operated screwdriver. Alternatively, it is conceivable that the machine tool is embodied as a jigsaw, as a grinding machine or as another machine tool that appears meaningful to a person skilled in the art. Furthermore, it is proposed that the machine tool comprise at least one drive train unit and at least one housing unit which comprises at least a first housing shell element and at least one second housing shell element which are fixed to one another via the drive train unit and / or via the factory generating machine device along a drive axle of the drive train unit. The second housing shell element is preferably connected to the first housing shell element via at least one contact surface of the first housing shell element and via at least one contact surface of the second housing shell element along at least one contact line between the first housing shell element and the second housing shell element. The first housing shell element and the second Gehäusescha lenelement form in particular at least partially a handle, in particular a pistol grip, from. Preferably, the first Gehäusescha lenelement and the second housing shell element along the contact line, in particular at least substantially free of visible Befestigungsele elements, connected to each other, in particular fixed to each other. The first Ge housing shell element and the second housing shell element are vorzugswei se designed as a housing shells. In particular, the first housing shell element and the second housing shell element on a three-dimensional shape. The first housing shell element and the second housing shell element are preferably formed from a plastic. Alternatively, it is conceivable that the first housing shell element and / or the second Ge häuseschalenelement from a metal, made of a composite material, in particular fiber composite material, or from another, a person skilled in the useful appearing material are / is. In particular, it is conceivable that the second housing shell element is formed from a material different from a material of the first housing shell element. At least the first housing shell element and the second housing shell element form, in particular in a mutually fixed state, together a Ge housing a machine tool, in particular an electric screwdriver housing from. Preferably within the housing formed by at least the first housing shell element and the second housing shell element are wider re, preferably all, internal components of the machine tool, such as - For example, a motor, a transmission, the machine tool device o. The like. Arranged and / or enclosed by the housing.

The contact line is in particular a line along which the first housing shell element and the second housing shell element are arranged in an assembled state of the housing unit to each other, in particular abut each other. Preferably, the contact line is formed as a separating edge, along which the first housing shell element and the second Gehäusescha lenelement are interconnected and / or separable. The contact line corresponds in particular at least substantially a course of a housing se edge of the first housing shell element and the second Gehäusescha lenelements. Preferably, the housing edge of the first Gehäusescha lenelements or the second housing shell element extends at least Wesentli Chen perpendicular to a wall thickness of the first housing shell element and the second housing shell element. Preferably, the hous se edge of the first housing shell element and the second Gehäusescha lenelements the first housing shell element or the second Gehäusescha lenelement, in particular in a direction which is aligned at least substantially perpendicular to the housing edge and the wall thickness of the first housing shell element or the second housing shell element is.

The housing edge of the first housing shell element preferably has a course corresponding to a profile of the housing edge of the second Gehäuseschalenele element course. In particular, the first housing shell element and the second housing shell element in an assembled state of the housing unit along the housing edge of the first housing shell element and along the housing edge of the second housing shell elements are at least substantially dimensionally accurate, in particular jigsaw-like, to each other. Preferably, the first housing shell element and the second housing shell element over the contact surface of the first housing shell element and the contact surface of the second housing shell element abut each other. The contact surface of the first housing shell element or the contact surface of the second housing shell element is in particular characterized by a maximum length of the housing edge of the first housing shell element or of the second housing shell element and by a wall thickness of spanned on the first housing shell element and the second housing shell element.

The handle is in particular a housing area, on which a user grips the machine tool for use and / or actuation of the machine tool. A trained as a pistol grip handle is in particular formed at least substantially analogous to a handle of a pistol. In particular, a housing unit with a pistol grip at least in We sentlichen tangible to a gun. Preferably, an actuating switch is arranged to actuate the machine tool at least substantially analogous to a trigger of a gun on the handle. Vorzugswei se trained as a pistol grip handle is aligned at an angle to a subsequent to the handle housing portion. In particular, the handle designed as a pistol grip and the housing section adjoining the hand form at least substantially an L-shaped end section of the housing unit. The out as a pistol grip handle formed in particular arcuately in the rest of the housing unit.

The first housing shell element and the second housing shell element are preferably connected to one another, in particular fixed to one another. Preference, the first housing shell element and the second housing shell element are connected to each other at least on the handle at least substantially free of view ble fastening elements together, in particular fixed to each other. In particular, the first housing shell element and the second Ge housing shell element along the contact line by means of at most five visible fasteners, preferably by means of at most three visible fastening supply elements, more preferably by means of at most one visible fastenings tion elements and most preferably completely free of visible fasteners connected to each other, in particular fixed to each other , The, in particular not visible from the outside, fasteners for fixing the first housing shell member and the second Gehäusescha lenelements can be designed as fasteners, in particular as screws, connecting pins, bolts, locking elements, screw holes or other, a person skilled in the meaning of apparent fasteners. Preferably, the Housing unit a plurality of, in particular different, Befestigungsele elements to a compound of the first housing shell member and the two-th housing shell member together. Preferably, the fastening are supply elements in an assembled state of the housing unit or the machine tool, especially for the user, not visible, especially not visible. Preferably, in particular not visible from the outside, fasteners by the first housing shell element, by the two te housing shell element and / or by other components of the housing unit or the machine tool, such as a tool holder, a switch, a diaphragm, a clip o ., covered.

The handle is preferably at least on one side of the tool facing and / or facing away from the handle formed at least substantially free of separating edges. The tool side of the housing unit is in particular special an outer side of the first housing shell element and / or the second housing shell member having at least one outlet opening from which an output element of the machine tool can protrude to drive a set A tool, and / or in an assembled state of the housing unit a tool holder of the machine tool and / or egg nem is arranged on the tool holder arranged insert tool. Preferably, a use of the housing unit or the machine tool by the user, in particular on the handle, a force in Rich tion of the tool side or transversely to a main extension plane of the work tool side exercisable. "Transverse" is to be understood in particular an orientation of a rich direction and / or an axis relative to a reference direction and / or Be zugsachse, wherein the orientation of the direction and / or the axis at least different from an at least substantially parallel alignment with the reference direction and / or to the reference axis and in particular is skewed or perpendicular to the reference direction and / or to the reference axis. Preferably, the handle is formed at least on the tool side abgewand th side of the handle at least substantially free of separating edges. Preferably, the handle on the side facing the tool side and the side facing away from the tool side of the handle is formed at least substantially free of separating edges. Preferably, the handle has at least one separating edge on at least one at least substantially perpendicular to the the tool side aligned side of the handle. Preferably, the handle has two sides of the handle aligned at least substantially perpendicular to the tool side. In particular, the handle on both of the at least substantially perpendicular to the tool side aligned pages on the separation edge.

The first housing shell element and / or the second Gehäuseschalenele element have / preferably at least one on a tool receiving portion of the first housing shell member and / or the second housing shell member arranged ventilation opening. Preferably, the tool receiving area is a region of the first housing shell element and / or the second housing shell element, on which a Werkzeugaufnah me and / or an insertion tool can be arranged / is. In particular, the tool receiving area on the tool side of the housing unit angeord net or forms the tool side at least partially. Preferably, the ventilation opening is concealed in a mounted state of the machine tool by the tool holder and / or the insert tool. Before preferably the ventilation opening is formed as a recess in the first housing seschalenelement and / or the second housing shell element. The ventilation opening may be at least substantially rectangular, square, elliptical, circular or the like. The ventilation opening is in particular provided for an air supply to a drive train unit, in particular to a motor, the machine tool and / or the machine tool device. The tool holder is intended to suck in by a rotation of the tool holder, in particular at least substantially dust-free, air and to generate an air flow in the ventilation opening. In within the first housing shell member and / or the second housing shell member of the air flow, in particular by a labyrinthine air flow guide, to the drive train unit and / or the Werkzeugmaschi neneinrichtung passed. The air flow is for cooling the Antriebsstran geinheit, in particular of the engine, and / or the machine tool device provided. In particular, the first housing shell element and / or the second housing shell element can / have a plurality of, preferably two, ventilation openings. Preferably, the first housing shell element and / or the second housing shell element have / has at least one air outlet opening. The air outlet opening is preferably arranged on an upper side and / or on at least one side surface of the first housing shell element and / or the second housing element. The air outlet opening may in particular be designed at least substantially analogously to the ventilation opening. Al ternativ is conceivable that, in particular on a side surface of the first housing shell member and / or the second housing shell member to parent, air outlet opening is formed as an air outlet slot. The air outlet opening is provided to allow the air flow to cool the drive odd unit and / or the machine tool device escape from the Gehäuseein unit. The machine tool can have a fan, in particular arranged on the motor. The fan may be adapted to convey air from an interior of the housing unit through the air outlet opening out of the housing unit. Preferably, the first housing shell element and / or the second housing shell element have / has a plurality of air outlet openings, for example an air outlet opening on an upper side of the first housing shell element and / or the second housing shell element and one air outlet opening in each case on a side surface of the first housing shell element and / or second hous salen element.

The drive train unit preferably comprises at least one engine, at least one transmission and at least one transmission cover, which is provided to fix the transmission to the engine. The motor is preferably designed as an elect romotor, in particular as a DC electric motor. The transmission is particularly provided for transmitting power from the engine to a drive shaft of the drive train unit. In particular, the transmission is provided for a rotating and / or oscillating drive of the output shaft about a drive axis of the drive train unit. Preferably, a longitudinal axis of the output shaft extends at least substantially parallel, in particular coaxially, to the drive axle of the drive train unit. A longitudinal axis of an object, in particular a cylindrical object, is in particular an axis which is aligned at least substantially perpendicular to a cross-sectional area of the object spanned by cylinder radii of the object. The transmission is Specifically intended to change a direction of rotation and / or a Drehgeschwin speed of the engine, in particular a drive shaft of the engine, to a drive to the output shaft, in particular to translate. The drive shaft of the motor is preferably formed as a rotor shaft of the motor. In particular special engine is mechanically coupled to the transmission. Preferably, the drive shaft of the motor extends at least partially within the transmission and in particular with components of the transmission, such as gears, connected. Preferably, the transmission is provided to realize ver different rotational speeds of the output shaft. In particular, at least two different rotational speeds of the output shaft, with which the output shaft rotates, can be realized via the transmission. Before preferably, the engine has different directions of rotation, in particular the drive shaft to the motor, along which the transmission can drive in particular from the drive shaft. In particular, at least a first rotational direction of the output shaft, for example in a clockwise direction about the drive shaft, and at least a second rotational direction of the output shaft, for example, counterclockwise about the drive axis, can be realized via the transmission. Preferably, the transmission is designed as a planetary gear. The gear cover is arranged in particular between the transmission and the engine and preferably fixes the transmission along the drive axle to the engine. Preferably, the transmission cover is attached to a first side of the transmission cover on the engine, in particular on an end face of the engine through which the drive shaft extends to the motor. Preferably, the gear cover is on a second, the first side of the gear cover facing away te te the gear cover on the transmission, in particular on an end face of the transmission, which faces away from the output shaft attached to the transmission. Before preferably the gear cover with at least one fastening element, in particular a screw and / or a connecting pin, fixed to the engine and / or to the transmission. Preferably, the gear cover has a main extension plane, which is aligned at least substantially perpendicular to the drive axis. Preferably, the gear cover is in an assembled state of the drive train unit at least partially obscured by the Mo tor and / or the transmission. The drive train unit is provided in particular for driving an insert tool of the machine tool. The insert tool is preferential, as a screwdriver bit or as a drill formed. Alternatively, it is conceivable that the insert tool forms out as a grinding plate, as a saw blade or as another, one skilled in the useful appearing insert tool. Preferably, the user exerts a force along the drive axis on the machine tool, in particular special on the insert tool of the machine tool when using the Werkzeugma machine. Preferably, the drive train unit and / or the machine tool device are / is provided to fix the first housing shell element and the second housing shell element along the drive axis to each other. In particular, the first housing shell element and the second housing shell element along the drive axis viewed at least substantially one behind the other, in particular on the drive train unit and / or the Werkzeugmaschinenvor direction, arranged. In particular, at least one parting plane extends at least in sections, in particular on the handle, transversely to the Antriebsach se. A parting plane is in particular a plane between the first hous seschalenelement and the second housing shell element in which the contact line and / or the separating edge extends and in particular At least in We sentlichen is aligned perpendicular to a contacting direction along which the first housing shell element and the second housing shell element abut each other, in particular fixed to each other. In particular, the parting plane is aligned at least substantially parallel to the contact surface of the first housing shell element or of the second housing shell element. The first housing shell element and the second Gehäuseschalenele element are preferably fixed together along the drive axle by means of fixing elements and / or a locking tab on the drive train unit and / or the machine tool device and the drive train unit and / or the machine tool device to each other. Advantageously, a stable fixation of the first housing shell element and the second Gehäusescha lenelements can be achieved together. The first housing shell element, the second housing shell element and the drive train unit form due to the fixation an advantageous linear and low-point Kraftübertra supply effect chain. Preferably, the housing unit has at least one shell element on the first housing element and / or on the second housing shell element angeordne TES and / or arrangeable receiving element, in particular a locking tab, which at least partially within the first housing shell element and / or of the attachment to the Antriebstrangeinheit Second Ge housing shell element is provided by a connection with at least one connec tion element of the drive train unit. Preferably, the housing unit has a single receiving element. Alternatively, it is conceivable that the housing unit has a plurality of receiving elements. The receiving element is in particular materially connected to the first housing shell element and / or with the second housing shell element, preferably with the first housing shell element or with the second housing shell element, in particular integrally with the first housing shell element and / or with the second housing shell element, preferably with the first Housing shell element or with the second housing shell element formed. Alternatively, it is conceivable that the receiving element non-positively and / or positively, for example by a screw, a latch o. The like., Lenelement connected to the first housing shell element and / or the second Gehäusescha lenelement and / or is connectable. The receiving element is in particular special intended to attach the at least substantially complete drive strange unit. Preferably, the receiving element is provided to pre-fix the engine, the gearbox fixed to the engine via the gearbox and connected to the transmission output shaft of the drive train unit. Alternatively, it is conceivable that the receiving element is provided to fasten individual components of the drive train unit. A within the housing unit, in particular within the first housing shell member and / or the second housing shell element, arranged object is in egg nem mounted state of the machine tool preferably from the outside, in particular by an at least substantially opaque Gehäuseein unit, not visible. In particular, within the housing unit, in particular special within the first housing shell member and / or the second housing shell element, arranged object by the first Gehäusescha lenelement and / or by the second housing shell element at least partially enclosed. In particular, a within the housing unit, in particular special within the first housing shell member and / or the second Housing shell element, object arranged by the first Gehäusescha lenelement and / or the second housing shell element spatially separated from an environment of the machine tool, for example, a hand of a user who engages the machine tool.

The receiving element is preferably ausgebil det as a locking tab. Alternatively, it is conceivable that the receiving element as a bearing bridge o. The like. Is formed. The receiving element is preferably provided for attachment of the drive train unit, wherein in particular at least We sentlichen all components of the drive train unit are interconnected. In particular, the locking tab is provided for a positive and / or positive connection, in particular a latching, with at least one, preferably a single, component of the drive train unit, via which at least substantially all components of the drive train unit are fixed to one another. The locking tab is preferably formed at least partially elastic. In particular, the locking tab has at least one, preferably two, locking tab extension, which is provided for fixing the drive-train unit. Preferably, at least one latching recess is arranged on the Verriege ment plate extension. Vorzugswei se, the connecting element of the drive train unit is designed as a latching element, which is provided in particular to a latching with the Verriegelungsla rule extension, in particular with the latching recess. Alternatively or additionally, it is conceivable that the connecting element as a Rastaus recess, in particular to a catch with the receiving element, as a screw or thread, in particular to a screw with the on receiving element, as a plug-in element or a plug-in receptacle, in particular to a plug connection the receiving element, as a clamping element or a clamping recess, in particular to a clamping connection with the receiving element on, or as another, to a person skilled in the sense of the connecting element is formed. The connecting element is preferably arranged on at least one component of the drive train unit. In particular, the special drive strand unit can have a plurality of, in particular arranged on ver different components of the drive train unit, Verbindungsele instruments. The receiving element is preferably to a, in particular non-positive and / or positive, connection of the first Gehäuseschalen- elements provided with the second housing shell element. In particular, the first housing shell element and the second housing shell element are fixed to one another via the receiving element. The receiving element can in particular cohesively connected to the first housing shell element, in particular integrally formed with the first housing shell element, and the second housing shell element can non-positively and / or positively connected to the receiving element and in particular fixed to the first housing shell element. Preferably, the first housing shell element and the second housing shell member non-positively and / or positively connected to the receiving element and in particular fixed to each other.

Preferably, the connecting element is arranged on the gear cover and / or is at least partially formed by the gear cover. Alter natively it is conceivable that the connecting element is arranged on the engine and / or on the transmission. Preferably, the connecting element is stoffschlüs sig connected to the gear cover, in particular integrally formed with the gear cover. Preferably, the connecting element extends, in particular the connecting element formed as a latching element, at least from sectionwise transversely to the drive axle of the drive train unit, in particular for engagement in the latching recess of the locking latch extension. Preferably, the gear cover comprises two connecting elements, wherein in each case one of the connecting elements is provided for latching with in each case one locking plate extension, in particular each with a latching recess. In particular, the connecting elements are arranged on mutually abge facing sides of the gear cover and at least substantially symmetrical to each other.

Preferably, the connecting element is formed at least partially ramped to a spreading of the receiving element. In particular, the connecting element formed as a latching element is at least sectionally ramp-shaped. Preferably, the Verbindungsele element is at least provided to a spreading of the receiving element during assembly of the drive train unit to the receiving element. In particular, the connecting element is viewed from the engine along the drive axle in the direction of the transmission in the form of a rising Ramp formed. Preferably, the connecting element, in particular at least substantially perpendicular to the drive axis viewed, at least substantially T-shaped, in particular to an at least We sentlichen dimensionally accurate latching with the at least substantially T-shaped recess of the locking tab extension. Preference, at least one of a vertical line of a "T" s corresponding portion of the connecting element is formed like a ramp.

Furthermore, it is proposed that the housing unit at least one on the first housing shell element and / or on the second Gehäusescha lenelement arranged mounting receptacle to a recording of a Fixie relements, in particular a screw, comprising at least in wesent union complete machine tool device at least partially within the first Housing shell element and / or the second housing shell elements fixed. The fixing element is preferably designed as a screw. Alternatively, it is conceivable that the fixing element is designed as a connecting pin, as a connecting bolt or as another, a person skilled in the useful erschei Nendes fixing. The fixing element provided for fixing the machine tool device preferably has a main extension direction oriented at least substantially parallel to the drive axis. Preferably, the housing unit has a single fastening supply recording and a single to a recording on the Befestigungsauf measure provided for fixing. The attachment receptacle is in particular special for attachment of the electronics unit, the carrier unit, the scarf tereinheit and the accumulator contact element to the first housing shell element and / or provided on the second housing shell element. The attachment receptacle is preferably provided to a mounting of the gearing unit on which the electronic unit is arranged, arranged scarf unit. The accumulator contact element is arranged in particular on the electronics unit, in particular on the circuit board unit. The Akkumu latorkontaktelement is preferably fixed by means of the line elements on the Plati neneinheit.

The switch unit is preferably fixable by means of the fixing element to the fastening input, in particular with the fastening receptacle. screwable. In particular, the switch unit has a fixing recess, through which the fixing element can be introduced into the fastening receptacle. The attachment receptacle is at least substantially tubular and may in particular have a corresponding with the fixing element Innenge thread. Preferably, the fastening receptacle extends at least substantially parallel to the drive axis. Preferably, the attachment receptacle is arranged on an inner side of the first housing shell element and / or of the second housing shell element. In particular, the fastening receptacle is materially connected to the first Gehäuseschalenele element and / or connected to the second housing shell element, in particular formed integrally with the first housing shell element and / or with the second housing shell element. The attachment receptacle is vorzugswei se to a fastening of the first housing shell member and the second housing shell member provided to each other. Preferably, the Fixie is relement provided for a fixation of the first housing shell member and the two-th housing shell member. By way of example, the mounting receptacle can be arranged on the first housing shell element and the fi xierelement the at least substantially complete Werkzeugmaschi nenvorrichtung and the second housing shell element on the Befestigungsauf acquisition, in particular on the first housing shell element, fix. It can be an advantageously comfortable and simple arrangement of at least Wesentli chen complete machine tool device, in particular, in the Ge housing unit can be achieved. Advantageously can be dispensed ver to a variety of bearings to a recording of components of the machine tool device. Advantageously, a cost-effective and easily serviceable machine tool can be provided.

It is also proposed that the fastening receptacle is provided to spatially separate at least one accumulator contact element of the machine tool device from the switch unit. Preferably, the fastening receptacle extends in a state arranged at the housing unit of the machine tool device at least in sections between the switch unit and the accumulator contact element. Preferably, the fastening receptacle is in contact with the switch unit and with the Akkumula torkontaktelement. In particular, the fastening receptacle stands on a first th side of the fastening receptacle in contact with the switch unit. In particular special, the fastening receptacle is on a second side facing away from the first side of the fastening receptacle side of the fastening receptacle in contact with the Akkumulatorkontaktelement. Preferably, the switch unit and / or the Akkumulatorkontaktelement are at least partially stored on the fastening supply recording. Preferably, the conduit member has a maxi male extension, which allows an arrangement of the switch unit and Akkumu latorkontaktelements to the attachment receptacle. In particular, the line element is deformable such that the switch unit and the battery mulatorkontaktelement can be arranged around the mounting bracket. It may be an advantageous stable arrangement of the machine tool device, in particular special of the switch unit and the Akkumulatorkontaktelements, are achieved at the Ge housing unit.

The machine tool has, in particular, at least one actuating switch which is provided for actuating the machine tool device and for concealing the fixing element. The operation switch is preferably before to an operation of the switching element of the switch unit, in particular special on the shift rod of the switch unit provided. In particular, the operating switch is arranged in a mounted state of the machine tool on the shift rod, in particular pushed onto the shift rod. In particular, the operating switch is in an assembled state of the machine tool at least partially disposed within a switch receiving opening of the first housing shell member and / or the second Gehäuseschalenele element through which the shift rod extends at least in sections. Preferably, the switch receiving opening has a shape corresponding to a form of the operating switch shape. Preference, the operation switch hidden in a arrange on the shift rod th state, the fixing element, which is provided for fixing the machine tool device. Preferably, the actuation switch has at least one disassembly recess. The disassembly recess is preference, as a recess, in particular a partial recess formed in the Actuate supply switch. Preferably, the disassembly recess is arranged on a side of the actuating switch facing away from the upper side of the housing unit. The disassembly saving is in particular one, in particular tool-free, disassembly of the actuating switch, in particular of the shift rod provided. Preferably, the operation switch is at the de montageaussparung tangible and removable from the shift rod.

In particular, the housing unit, in particular for the formation of an at least substantially linear force transmission active chain, at least one further fixing element, in particular a screw, to a connection of the first housing shell element or the second housing shell element with the receiving element and / or the drive train unit. The further fixing element preferably has a main extension direction oriented at least substantially parallel to a drive axis of the drive train unit. The further fixing element is preferably at least substantially formed in a manner analogous to the fixing element of the housing unit. Vorzugswei se is the further fixing element to a connection of the second Gehäusescha lenelements provided with the drive train unit. Alternatively or additionally, it is conceivable that the further fixing element is provided to a connection of the first Ge häuseschalenelements with the receiving element. Preferably, the further fixing element is arranged on the tool receiving area of the first housing shell element or the second housing shell element on which a tool holder and / or an insertion tool can be arranged. The further fixing element preferably fixes the first housing shell element or the second housing shell element along the drive axle to the receiving element and / or to the drive train unit, in particular to a gear housing of the transmission of the drive train unit. Preference, the machine tool housing comprises a plurality of further fixing elements, in particular three further fixing elements, which are provided for a connec tion of the first housing shell element or the second housing shell elements with the receiving element and / or the Antriebsstrangereinheit and aligned at least substantially parallel to the drive axis Have main directions of extension. By means of the further fi xierelements is in particular an at least substantially linear Kraftüber trag ungs effect chain formed with a force from a user starting at least substantially linear over the first housing shell element, the drive train to the unit and the second housing shell element zeug or a workpiece is transmitted. Preferably, the tool holder covers in a geinheit on the Antriebsstran arranged state, the further fixing element and / or the Belüf device opening of the first housing shell element and / or the second Ge häuseschalenelements. The tool holder is preferably provided to a measure of the insertion tool. The tool holder is in particular special forms out as a tool chuck, in particular as a jaw chuck. Alternatively, it is conceivable that the tool holder is designed as a Schleifplat tenhalterung, as a saw blade holder or as another, a man skilled as reasonable tool holder. The work tool holder is preferably angeord net on the tool receiving portion of the first housing shell member or the second housing shell member and in particular attached to the drive train unit. In particular, the tool holder can be attached to the output shaft of the drive train unit. Preferably, the output shaft has a thread, by means of which the tool holder is screwed onto the output shaft. Preferably, the drive train unit drives the tool holder and on the Werkzeugauf measure the insert tool. The tool holder preferably covers all arranged on the tool receiving portion of the first Gehäuseschalenele element or the second housing shell element further Fixie relemente. Preferably, the tool holder conceals the further Fixie relement, which is provided for a connection of the first housing shell member or the second housing shell member with the receiving element and / or the Antriebsstrangereinheit and the one to the drive axis of the drive train to at least substantially aligned parallel main direction of extension. Preferably, the tool holder conceals all elements arranged on the tool receiving area of the first housing shell element or of the second housing shell element.

Furthermore, the invention proceeds from a method for assembling a machine tool device, in particular a machine tool according to the invention. It is proposed that at least one switch unit and at least one electronic unit be accommodated on at least one carrier unit in at least one method step. Preferably, the electronics unit, in particular the board unit of the electronics unit, is arranged on an outer side of the carrier unit, in particular the carrier plate of the carrier unit, and fixed by means of the contact pin, in particular soldered to the contact pin. Preferably, the switch unit is disposed on an outer side of the carrier unit facing away from the electronics unit, in particular the carrier plate of the carrier unit. Advantageously, an advantageously compact electronic preassembly assembly can be preassembled for a machine tool.

Furthermore, it is proposed that in at least one method step at least one switch receiving unit non-positively and / or positively, in particular via a dovetail connection, arranged on at least one support element of the carrier unit, in particular latched, is. Preferably, the switch receiving unit, in particular the switch receiving part of the scarf teraufnahmeeinheit, by means of a groove of the switch receiving part force and / or positively arranged on the support element. Preferably, two switch receiving parts of the switch receiving unit are arranged on two carrier elements. Advantageously, the switch receiving unit can be securely connected to the carrier unit without tools.

In addition, it is proposed that in at least one method step, the switch unit teraufnahmeeinheit by means of at least one switch receiving element of the scarf is arranged on the carrier unit. Preferably, the switch unit by means of two switch receiving elements of the Schalteraufnah meeinheit, in particular the switch receiving parts, on the carrier unit is arranged. In particular, the switch unit is pushed between the Schalteraufnahmetei le and the switch receiving elements and fixed by the Schalterauf receiving parts and the switch receiving elements. Advantageously, the scarf tereinheit be placed securely and without tools on the carrier unit.

Furthermore, it is proposed that, in at least one method step, at least one accumulator contact element, which is provided for supplying energy to at least the electronics unit, via at least one, in particular at least substantially rigid, line element is electrically connected to at least one board unit of the electronic unit. Preferably, the accumulator contact element is electrically connected to the board unit of the electronics unit via two at least substantially rigid line elements. In particular, the line elements are soldered to the board unit. In particular, the line elements with the Akkumulatorkontaktele element, in particular with at least two contact plugs of Akkumulatorkontak telements soldered. Preferably, the line elements are rewritten such that the switch unit and the Akkumulatorkontaktelement can be arranged festigungsaufnahme to the loading. In particular, the battery mulatorkontaktelement is electrically connected via two further line elements with the board unit. Advantageously, the machine tool device can be prepared for an arrangement of the accumulator contact element in a predetermined position and for a power supply of at least the electronics unit.

In at least one method step of a method for mounting a machine tool, in particular a machine tool according to the invention, the first housing shell element and the second housing shell element of the housing unit are preferably fixed to one another via the drive strand unit along the drive axis of the drive strand unit. Vorzugswei se be the first housing shell element and / or the second housing shell element on the receiving element, in particular the Verriegelungsla cal, and / or on the other fixing element, in particular the further Fixie relement having a to the drive axis of the Antriebstrangeinheit at least substantially parallel aligned main extension direction , Fixed to the drive train unit and the drive train unit in particular aneinan the.

In at least one further method step of the method for mounting the machine tool, the receiving element, in particular the locking tab, the housing unit is preferably arranged on the first housing shell element and / or on the second housing shell element, in particular special with the first housing shell element and / or with the second Ge screwed to the housing shell element. Preferably, a separate from the first Th housing housing shell element and / or the second housing shell element present receiving element arranged on the first housing shell element and / or on the second housing shell element, in particular screwed lenelement with the first housing shell element and / or with the second Gehäusescha lenelement. In particular, the receiving element is arranged on the inner side of the first housing shell element and / or on the inside of the two-th housing shell element.

In at least one further method step of the method for assembling the machine tool, preferably the transmission of the drive train unit is fixed to the motor of the drive train unit by means of the gear cover of the drive train unit. In particular, the at least substantially complete drive train unit is preassembled. Preferably, the Getriebede is ckel means of at least one fastener, in particular a screw be and / or a connecting pin fixed to the engine and / or to the transmission.

In at least one further method step of the method for assembling the machine tool, the drive string unit is preferably connected by means of the receiving element, in particular the locking tab, which is arranged on the first housing shell element and / or on the second housing shell element and by means of which the first housing shell element is connected to the second housing shell element At least partially within the first housing shell member and / or the second housing shell elements by a connection with the connecting element of the drive strange unit attached. Preferably, the preassembled drive train unit is at least partially inserted into the receiving element, in particular the Verriegelungsla cal, which is spread by the at least partially ramp-like design of the connecting element of the locking tab extension and the latching recess is locked to the connecting element.

In at least one further method step of the method for mounting the machine tool, the machine tool device, which is provided in particular for controlling and / or regulating at least the drive train unit, preferably by means of the fixing element of the housing unit, in particular a screw, fixed to the mounting receptacle of the housing unit. Preferably, the machine tool device, in particular the switch receiving unit, coupled by means of the coupling element of the Schalteraufnah meeinheit with the housing unit, in particular arranged on the Montagefort set. In particular, the machine tool device, in particular special the switch receiving unit, fixed by means of the fixing element on the first housing shell element and / or on the second housing shell element, in particular on the mounting receptacle. Preferably, by means of the fixing element, the machine tool device and the second housing seschalenelement, in particular at the same time, fixed to the first housing shell element.

In at least one further method step of the method for mounting the machine tool, the tool holder is preferably arranged on the drive train unit by means of which at least one further fixing element of the housing unit, in particular a screw, and / or at least one ventilation opening of the first housing shell element and / or of the second Housing shell element is hidden / is. The tool holder is preferably arranged on the tool receiving area and in particular attached to the drive train unit. Preferably, the Werkzeugaufnah me is attached to the output shaft, in particular screwed by means of the thread on the output shaft. In particular, by means of the tool holder at least one further fixing element, preferably all arranged on the tool receiving area further fixing elements, covered. In particular, all of the tool receiving area arranged ventilation openings are covered by the tool holder.

The machine tool device according to the invention, the machine tool according to the invention and / or the method according to the invention should / should not be limited to the application and embodiment described above. In particular, the machine tool according to the invention, the machine tool according to the invention and / or the method according to the invention may have a number differing from a number of individual elements, components and units as well as method steps mentioned herein for fulfilling a function described herein. sen. In addition, in the ranges of values indicated in this disclosure, values lying within the limits mentioned should also be regarded as disclosed and be used as desired.

drawings

Further advantages emerge from the following description of the drawing. In the drawings, two embodiments of the invention are shown. The drawings, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.

Show it:

1 is a side view of a Werkzeugmaschi invention ne,

2 is an exploded view of the Werkzeugma machine according to the invention in a perspective view,

3 shows a part of the machine tool according to the invention in a perspective view,

4 is a partial exploded view of the machine tool according to the invention in a perspective view,

5 is an exploded view of an alternative powertrain geinheit of the machine tool according to the invention in a perspective view,

6 is a plan view of the alternative of the drive train unit of he inventive machine tool in a schematic representation,

7 shows a part of a housing unit of the machine tool according to the invention in a perspective view,

8 is a front view of a part of the machine according to the invention in a perspective view, 9 shows the machine tool according to the invention in a perspective view,

Fig. 10 is an operating switch of the machine tool according to the invention in a perspective view, Fig. 11 shows a handle of a housing unit of the invention

12 shows an alternative of the handle of the housing unit of the inventions to the invention machine tool in a perspective view,

13 is a machine tool device according to the invention in egg ner perspective view,

Fig. 14 is an exploded view of a portion of the invention

Machine tool device in a perspective Dar position,

15 is an exploded view of the Werkzeugma machine device according to the invention in a perspective view, Fig. 16 shows another part of the machine tool according to the invention in a perspective view,

17 shows the machine tool device according to the invention in a further perspective view,

Fig. 18 is an exploded view of an alternative invention

19 shows an exploded view of a part of a housing unit of the al ternative machine tool according to the invention from Figure 17 in a perspective view and

Fig. 20 is a partial exploded view of the alternative erfindungsge MAESSEN machine tool of Figure 17 in a perspektivi rule representation.

Description of the embodiments

FIG. 1 shows a side view of a machine tool 18a. The machine tool 18 a is formed as a hand tool. The machine tool 18 a is designed as a wireless electric hand tool. The Machine tool 18a is designed as an electric screwdriver, in particular as an electric screwdriver. The machine tool 18a comprises a Ge housing unit 16a. The machine tool 18a and the housing unit 16a are shown in an assembled state. The housing unit 16a has a first housing shell element 48a and a second housing shell element 50a. The first housing shell member 48 a and the second housing shell member 50 a are verbun along a contact line 58 a between the first housing shell element 48 a and the second housing shell member 50 a to each other. The first housing shell element 48a and the second housing shell element 50a are along the contact line 58a between the first housing shell member 48a and the second housing shell member 50a at least substantially free of, in particular from the outside, visible Befestigungsele instruments connected to each other. The first housing shell element 48a and the second housing shell element 50a are fixed along the contact line 58a between the first housing shell element 48a and the second Gehäuseschalenele element 50a at least substantially free of visible fasteners to each other. The first housing shell element 48a and the second Ge housing shell element 50a are along the contact line 58a completely free from, in particular from the outside, visible fasteners ver together, in particular fixed to each other. At least substantially, the contact line 58a corresponds to a profile of a housing edge 60a of the first housing element 48a or a housing edge 62a of the second housing element 50a (see FIG. The first housing shell element 48a and the second housing shell element 50a are designed as housing shells. The first housing shell element 48a and the second housing shell element 50a have a three-dimensional shape. The first housing shell element 48 a and the second housing shell element 50 a are formed from a synthetic material. Alternatively, it is conceivable that the first Gehäuseschalenele element 48a and / or the second housing shell element 50a are made of a metal, a composite material, in particular fiber composite material, or from another, a person skilled in the useful appearing material ausgebil det / is. In particular, it is conceivable that the second housing shell element 50a is formed from a material which is different from a material of the first housing shell element 48a. At least the first housing shell element 48 a and the second housing shell element 50 a form, in particular in a mutually fixed state, together from a housing of an electric screwdriver. The first housing shell member 48a and the second hous seschalenelement 50a are in a mounted state of the housing unit 16a along the housing edge 60a of the first housing shell member 48a and along the housing edge 62a of the second housing shell member 50a dimensionally accurate, in particular jigsaw-like, to each other. The first housing shell member 48 a and the second housing shell member 50 a are at a contact surface 64 a of the first housing shell member 48 a and a contact surface 66 a of the second housing shell member 50 a to each other (see Figu Ren 7 and 16).

The first housing shell element 48a and the second housing shell element 50a form, at least in sections, a handle 68a. The first housing shell element 48a and the second housing shell element 50a form, at least in sections, a pistol grip. The handle 68a is formed as a pistol grip. The handle 68a is a housing portion where a user grips the machine tool 18a for use and / or operation of the machine tool 18a. Within the first housing shell element 48a and the second housing shell element 50a, a battery unit 70a of the machine tool 18a is detachably arranged on the handle 68a. In Figure 1, only a cover cap 72a of the battery unit 70a can be seen. The cover cap 72a is flush with the first Gehäuseschalenele element 48a and with the second housing shell member 50a on the handle 68a from. The machine tool 18a has a tool holder 74a for receiving an insert tool 76a of the machine tool 18a. The insert tool 76 a is interchangeable in the tool holder 74 a arranged. The tool holder 74a is formed as a tool chuck. The insert tool 76a is exemplified in FIG. 1 as a screwdriver bit.

FIG. 2 shows an exploded view of the machine tool 18a in a perspective view. The machine tool 18a includes a drive strange unit 46a. The first housing shell element 48a and the second housing shell element 50a are fixed to one another via the drive train unit 46a along a drive axle 52a of the drive train unit 46a. The drive strangeunit 46a is provided to drive the insertion tool 76a. The drive train unit 46a is provided for driving the tool holder 74a on which the insert tool 76a is arranged. The powertrain unit 46a includes a motor 78a. The motor 78a is formed as an electric motor. The motor 78a is formed as a DC electric motor. The drive train unit 46a includes a transmission 80a. The Antriebsstrangein unit 46a comprises an output shaft 82a (see Figure 3). The drive shaft 52a of the drive train unit 46a extends at least substantially parallel, in particular coaxially, to a longitudinal axis of the output shaft 82a. The Antriebsstrangein unit 46 a is provided to a rotating drive of the insert tool 76 a to the drive shaft 52 a on. When using the machine tool 18a, the user exerts a force along the drive shaft 52a on the machine tool 18a, in particular on the insert tool 76a of the machine tool 18a. The drive train unit 46a is provided to fix the first housing shell element 48a and the second housing shell element 50a along the drive axle 52a to one another. The first housing shell element 48a and the second housing shell element 50a are at least substantially one behind the other, in particular on the drive train unit 46a, arranged along the drive axle 52a. At least one parting plane 84a of the housing unit 16a extends at least in sections, in particular on the handle 68a, transversely to the drive axle 52a (see FIG. The first housing shell element 48a and the second housing shell element 50a are fixed to one another along the drive axis 52a by means of a fixing element 56a, by means of further fixing elements 86a of the housing unit 16a and by means of a receiving element 88a on the drive strand unit 46a and via the drive strand unit 46a. Preferably, the fixing element 56a and the wide Ren fixing elements 86a at least a part of, in particular from the outside, not visible fasteners by means of which at least the first housing shell member 48a and the second housing shell member 50a connected to each other, in particular fixed to each other.

The housing unit 16a has the further fixing elements 86a to form an at least substantially linear force transmission active chain. The housing unit 16a has three further fixing elements 86a. The further fixing elements 86a are designed as screws. Alternatively, it is conceivable that the further fixing elements 86a as connecting pins, as a connecting pin o. Like. Are formed. The further fixing elements 86a are provided for connecting the first housing shell element 48a or the second housing shell element 50a to the receiving element 88a and / or the drive train unit 46a. The further fixing elements 86a are provided to connect the second housing shell element 50a with the drive train unit 46a. The second housing shell element 50a is fixed by means of the further Fixie relemente 86a on the drive train unit 46a. The second Gehäusescha lenelement 50a is fixed by means of the further fixing elements 86a on the gear 80a, in particular on a transmission housing of the transmission 80a. The further fixing elements 86a have a direction of the drive axle 52a of the Antriebsstrangein unit 46a at least substantially parallel aligned main direction of extension 90a. The further fixing elements 86a are arranged on a tool receiving area 92a of the second housing shell element 50a, on which the tool receptacle 74a can be arranged. The further fixing elements 86a fix the second housing shell element 50a along the drive axle 52a to the drive train unit 46a. By means of the further fixing elements 86a, an at least substantially linear force transmission effect chain can be formed, where at a force from a user, at least substantially linearly via the first housing shell element 48a, the drive train unit 46a and the second housing shell element 50a is transmitted to the insertion tool 76a or a workpiece , The tool holder 74a can be attached without tools to the drive strand unit 46a. However, it is also conceivable that the tool holder 74a can be fastened to the drive-strand unit 46a by means of an attachment of a fastening tool. The tool holder 74a is provided for concealing the further fixing elements 86a of the housing unit 16a. The tool holder 74a is fixed to the output shaft 82a.

The first housing shell element 48a is fixed to the drive strand unit 46a by means of the receiving element 88a. The receiving element 88a is arranged on the first housing shell element 48a. The receiving element 88 a is at least partially disposed within the first housing shell element 48 a is. The receiving element 88a is formed as a locking tab. The receiving element 88a is for attachment of the Antriebsstranginheit 46a at least partially within the first housing shell member 48a and / or the second housing shell member 50a by a connection with see at least one connecting element 94a of the drive train unit 46a pre. The receiving element 88a is at least partially inner half of the first housing shell member 48a and / or the second housing shell member 50a and to a connection of the first Gehäuseschalenele element 48a provided with the second housing shell member 50a for attachment of the at least substantially complete Antriebstrangseinheit 46a. The Ge housing unit 16 a has a single receiving element 88 a. Alternatively, it is conceivable that the housing unit 16a has a plurality of receiving elements 88a. The receiving element 88 a is formed integrally with the first housing shell element 48 a. Alternatively, it is conceivable that the receiving element 88 a non-positively and / or positively, in particular by a screwing environment, is connected to the first housing shell member 48 a. The receiving element 88a designed as a locking tab is provided for fastening the drive train unit 46a, wherein at least substantially all components of the drive train unit 46a are connected to one another.

The receiving element 88a is provided to attach the motor 78a, the gear 80a fixed to the motor 78a via a gear cover 96a of the drive train unit 46a, and the output shaft 82a connected to the gear 80a to the drive train unit 46a. Alternatively, it is conceivable that the Aufnah meelement 88a is provided to fasten individual components of the drive train unit 46a. The receiving element 88a is provided for a positive and / or positive connection with at least one, preferably a single, component of the drive train unit 46a via which at least substantially all components of the drive train unit 46a are fixed to one another. The receiving element 88a is provided for latching to the component of the drive train unit 46a via which at least substantially all components of the drive train unit 46a are fixed to one another. The receiving element 88a is at least partially elastic. The receiving element 88a has two locking tab extensions 98a. The two Verriegelungslaschenfort sets 98a are arranged symmetrically to each other. The locking tab extensions 98a are provided for fixing the drive string unit 46a. At the locking tab extensions 98a each have a latching recess 100a is arranged. The drive train unit 46a has at least one connecting element 94a. The drive train unit 46a has two connection elements 94a. The connecting elements 94a are designed as latching elements. forms. The connecting elements 94a are provided for latching with the locking plate extensions 98a, in particular with the latching recesses 100a. Alternatively or additionally, it is conceivable that the Verbindungsele elements 94a as locking recesses, in particular to a catch with the receiving element 88a, as screws or threads, in particular to a screw with the receiving element 88a, as plug-in elements or plug receptacles, in particular to a plug connection with the receiving element 88a, as clamping elements or clamping recesses, in particular to a clamping connection with the receiving element 88a, or as other, a person skilled in the appearing appropriate connecting elements 94a are formed. The connecting elements 94a are arranged on at least one component of the drive strange unit 46a. The drive train unit 46a can have a plurality of connecting elements 94a, in particular arranged on different components of the drive train unit 46a. The connecting elements 94a are arranged on the gear cover 96a of the drive train unit 46a (see Figure 4). The connecting elements 94 a are arranged symmetrically to each other on two mutually abge facing outer sides of the gear cover 96 a. The transmission cover 96a is provided for coupling the motor 78a to the transmission 80a. The connecting elements 94a are formed at least from section to ramp-like. The connecting elements 94a are formed to a spread of the receiving element 88a, in particular the Verriege ment plate tabs 98a, at least partially ramp-like. In each case one of the connecting elements 94a is provided for latching with a respective locking tab extension 98a, in particular with a respective latching recess 100a. The receiving element 88a is to one, in particular special non-positive and / or positive connection, the first Gehäusescha lenelements 48a provided with the second housing shell element 50a. The first housing shell element 48a and the second housing shell element 50a are fixed to one another via the receiving element 88a. The receiving element 88a is formed integrally with the first housing shell element 48a and the second housing shell element 50a is connected via the further fixing elements 86a and the drive train unit 46a non-positively and / or positively connected to the receiving element 88a and fixed to the first housing shell element 48a. The machine tool 18a has a machine tool device 10a. The machine tool device 10a comprises a carrier unit 20a, on which an electronic unit 14a and a switch unit 12a of the machine tool device 10a are arranged. The machine tool device 10a comprises an accumulator contact element 40a. The first housing shell element 48a has mounting extensions 102a. The mounting extensions 102 a are provided to an arrangement of the machine tool device 10 a on the first housing shell member 48 a. The mounting extensions 102a are to an order of the support unit 20a with the arranged on the support unit 20a electronics unit 14a and the switch unit 12a on the first Gehäusescha lenelement 48a, in particular at least partially within the first hous seschalenelements 48a provided. The first housing shell element 48a has a fastening receptacle 54a. The fastening receptacle 54a is provided for fixing the carrier unit 20a, in particular the switch unit 12a arranged on the carrier unit 20a, to the first housing shell element 48a. The attachment receptacle 54 a is vorgese to a fastening of the electric nikeinheit 14 a, the support unit 20 a, the switch unit 12 a and the accumulator torkontaktelements 40 a on the first housing shell member 48 a. The fastening receptacle 54a is provided for attachment to the unit 20a on which the electronic unit 14a, in particular a unit 24a of the electronic unit 14a, is arranged, which is arranged on the carrier unit 12a. The battery contact element 40a is disposed on the board unit 24a. The accumulator contact element 40a is fixed to the printed circuit board unit 24a by means of line elements 42a, 44a of the electronics unit 14a which are not further represented. The fastening receptacle 54a is provided for fixing the two-th housing shell element 50a to the first housing shell element 48a. The fastening receptacle 54a is tubular. In the fastening receptacle 54a, the fixing element 56a of the housing unit 16a can be introduced. The fixing element 56a fixes the second housing shell element 50a and the switch unit 12a to the support unit 20a and the electronics unit 14a along the drive axle 52a to the attachment receptacle 54a, in particular to the first housing shell element 48a. The fixing member 56a is covered in a mounted state of the machine tool 18a by a Actuate supply switch 104a of the machine tool 18a. The Betätigungsschal ter 104 a is in an assembled state of the machine tool 18 a at the Switch unit 12a arranged. The accumulator contact element 40a is provided for realizing an electrical connection of the rechargeable battery unit 70a to the drive strange unit 46a and to the electronic unit 14a. The Akkumula gate contact element 40a is disposed in an assembled state of the machine tool 18a on the first housing shell member 48a, in particular within the first housing shell member 48a.

FIG. 3 shows a part of the machine tool 18a in a perspective view. Shown is the first housing shell element 48a. On the first housing shell element 48a, the drive train unit 46a, the machine tool device 10a, in particular the carrier unit 20a with the electronics unit 14a and the switch unit 12a and the battery contacts 40e, are arranged. The connecting elements 94a of the drive train unit 46a are latched with the locking tab extensions 98a, in particular with the Ras tausnehmungen 100a. The output shaft 82a is disposed on the transmission 80a. The output shaft 82a has a thread 106a. By means of the thread 106a, the tool holder 74a can be screwed onto the output shaft 82a. The machine tool 18a comprises an actuating element 108a. The actuator 108a is provided for selection of rotational direction modes and / or speed modes of the drive train unit 46a. The actuator 108a is formed as a rotary ring. The Betätigungsele element 108a is arranged annularly around the gear 80a. The Betätigungsele element 108a is movable on a spring 110a of the machine tool 18a, in particular rotatably about the drive axis 52a movable, mounted on the gear 80a. The machine tool 18a has a displacement element 112a. The displacement member 112a is formed as a sliding ring. The displacement member 112a is disposed annularly around the transmission 80a. The displacement element 112a is movable on the spring 110a, in particular axially movable along the drive axis 52a, mounted on the transmission 80a. The actuator 108a is provided for displacing the displacement member 112a to operate the displacement member 112a. The displacement element 112a is provided for a displacement of a not further illustrated ratchet wheel, in particular ring gear, of the transmission 80a, which is provided for adjusting at least the speed modes of the powertrain ggregation 46a. Figure 4 shows a partial exploded view of the machine tool 18a in egg ner perspective view. The drive train unit 46a is shown in an explosion view. The machine tool device 10a is shown in an assembled state. The gear cover 96a is provided to fix the gear 80a to the motor 78a. The transmission 80a is provided for power transmission from the motor 78a to the output shaft 82a. The gear 80a is seen to a rotating and / or oscillating drive from the drive shaft 82a about the drive shaft 52a of the drive train unit 46a pre. The transmission 80a is provided to change a direction of rotation and / or a rotational speed of the motor 78a, in particular a drive shaft 114a of the motor 78a, to drive the output shaft 82a, in particular to translate. The drive shaft 114a of the motor 78a is formed as a rotor shaft of the motor 78a. The motor 78a is mechanically coupled to the transmission 80a in an assembled state of the drive train unit 46a. The drive shaft 114a of the motor 78a extends in an assembled state of the drive train unit 46a at least partially within the transmission 80a and is connected to components of the transmission 80a, such as gears. The transmission 80a is provided to realize different rotational speeds of the drive shaft 82a from. Via the gear 80a, at least two different rotational speeds of the output shaft 82a, with which the drive shaft 82a from rotating, can be realized. The motor 78a has various rotational directions, in particular the drive shaft 114a of the motor 78a, along which the gear 80a, the output shaft 82a can drive. About the gear 80a, at least a first rotational direction of the output shaft 82a, beispielsewei se clockwise about the drive shaft 52a, and at least a second rotational direction of the output shaft 82a, for example, counterclockwise about the drive axis 52a, realized. The gear 80a is formed as a planetary gear. The transmission cover 96a is disposed between the transmission 80a and the motor 78a, and fixes the gear 80a along the drive shaft 52a to the motor 78a in a mounted state of the drive odd unit 46a. The transmission cover 96a is fixed to the motor 78a on a first side of the transmission cover 96a on the motor 78a, particularly on an end face of the motor 78a through which the drive shaft 114a extends. The gear cover 96a is at a second, the first side of the gear cover 96a abge- turned side of the transmission cover 96a on the transmission 80a, in particular on an end face of the transmission 80a, which faces away from the output shaft 82a, attached to the transmission 80a. The gear cover 96a is fixed with at least one fastening element, not shown in detail, in particular a screw, on the motor 78a and on the gear 80a. The gear cover 96a has a main extension plane 116a, which is aligned at least substantially perpendicular to the right drive shaft 52a. The gear cover 96a is concealed in an assembled state of the drive train unit 46a at least partially by the motor 78a and / or the gear 80a (see Fig. 3).

The connecting elements 94a are arranged on the gear cover 96a and / or are at least partially formed by the gear cover 96a. Alternatively, it is conceivable that the connecting elements 94a are arranged on the motor 78a and / or on the gear 80a. The connecting elements 94a are formed integrally with the gear cover 96a. The connecting elements 94a extend at least in sections transversely to the drive axis 52a of the drive train unit 46a, in particular to engage in the recesses 100a of the locking tab extensions 98a. The Verbindungsele elements 94a are formed to a spreading of the receiving element 88a at least partially ramped. The connecting elements 94a are hen vorgese at least to a spreading of the receiving element 88a during assembly of the drive train unit 46a on the receiving element 88a. The connecting elements 94a are viewed from the motor 78a along the drive shaft 52a in the direction of the transmission 80a viewed in the form of an anstei lowing ramp. The connecting elements 94a are designed to be at least substantially T-shaped, in particular at least substantially perpendicular to the drive axis 52a. The connecting elements 94a are at least substantially dimensionally accurate locking with the at least substantially T-shaped locking recesses 100a of the locking tab extensions 98a at least substantially T-shaped out forms. At least one portion 118a of the connecting members 94a corresponding to a vertical line of a "T" is formed like a ramp.

The carrier unit 20a has at least one heat sink element 22a. The Trä gereinheit 20 a has three heat sink elements 22 a. The heat sink elements 22a are provided to electrically connect the board unit 24a to the motor 78a. At least one heat sink element 22a is electrically connected via at least one electrical connection element 120a of the electronic unit 14a to at least one connection contact 122a of the motor 78a. The electrical connection element 120a is designed as a cable. Alternatively, it is conceivable that the electrical connection element 120a is formed as a wire. The heat sink element 22a has at least one contact extension 124a, which is electrically connected to the connection contact 122a of the motor 78a. The electrical connection element 120a is soldered to the heat sink element 22a, in particular to the special contact extension 124a of the heat sink element 22a, and to the connection contact 122a of the motor 78a. The motor 78a is formed as a three-phase motor. In each case, a heat sink element 22a, in particular depending Weil a contact extension 124a of the heat sink element 22a is electrically connected via in each case an electrical connection element 120a and via a respective terminal contact 122a, each with an electrical phase of the motor 78a. For the sake of clarity, only a single electrical connection element 120a is shown in FIG. The electronics unit 14a provides electrical energy to the motor 78a via the cooling body members 22a to operate the motor 78a. The motor 78a can be supplied with electrical energy via the heat sink elements 22a from the battery unit 70a.

FIG. 5 shows an exploded view of an alternative of a drive train unit 46a 'of the machine tool 18a in a perspective view. The drive train unit 46a 'comprises a motor 78a', a gear cover 96a 'and a gear 80a'. The transmission cover 96a 'is provided for coupling the transmission 80a' to the motor 78a ', in particular along a first arrow direction 126a. The gearbox 80a 'can be pushed onto the gearbox cover 96a' along a first arrow direction 126a. The first arrow direction 126a is aligned at least substantially parallel to a drive axle 52a 'of the drive train unit 46a'. The gear cover 96a 'is screwed to the motor 78a'. The drive train unit 46a 'includes two connection pins 128a. The connec tion pins 128a are provided to a fixation of the gear 80a 'on the Getriebede ckel 96a'. The transmission cover 96a 'includes two Getriebedeckelaus recesses 130a. The transmission 80a 'includes two transmission recesses 132a. The gear 80a 'is pushed onto the gear cover 96a', in that one of the gear recesses 132a is arranged congruently with in each case one of the gear cover recesses 130a. In order to fix the gear 80a 'to the gear cover 96a', the connecting pins 128a can be pushed through the gear recesses 132a and the gear cover recesses 130a. Each one of the connecting pins 128a is by Weil each one of the Getriebeausnehmungen 132a and one of the Getriebede ckelausnehmungen 130a, in particular along a second direction of arrow 134a hindurchschiebbar. The second arrow direction 134a is aligned at least substantially perpendicular to the drive axle 52a 'of the drive train unit 46a'. The connecting pins 128a have longitudinal axes which are aligned at least substantially perpendicular to the drive axis 52a '. In an assembled state of the drive train unit 46a ', the connecting pins 128a are spaced transversely to the drive axle 52a' from the drive axle 52a 'with the longitudinal axes of the connecting pins 128a extending at least substantially perpendicular to the drive axle 52a'.

FIG. 6 shows a top view of the drive train unit 46a 'in a schematic representation. The drive train unit 46a 'is shown in an assembled to stand. The connecting pins 128a are at least substantially completely inserted into the gear cover recesses 130a and the gear recesses 132a. The gear cover 96a 'has two Verbindungsele elements 94a' on. The connecting elements 94a 'extend at least from sectionwise transversely, in particular at least substantially perpendicular, to the drive axle 52a' of the drive train unit 46a '.

Figure 7 shows a portion of the housing unit 16a of the machine tool 18a in a perspective view. Shown is the second housing shell element 50a. In a mounted state of the housing unit 16a, the first housing shell member 48a and the second housing shell member 50a are abutted against each other via the contact surface 64a of the first housing shell member 48a and the contact surface 66a of the second housing shell member 50a. The contact surface 66a of the second housing shell element 50a is defined by a maximum length of the housing edge 62a of the second housing shell element 50a and by a wall thickness 136a of the second Gehäuseschalenele element 50a. The housing edge 62a of the second housing shell The second housing shell element 50a delimits the second housing shell element 50a in a direction which is aligned at least substantially perpendicular to the housing edge 62a and the wall thickness 136a of the second housing shell element 50a.

The housing unit 16a comprises an identification element 138a. The identification element 138a is formed separately from the first housing shell element 48a and from the second housing shell element 50a. The identification element 138a is provided for marking the housing unit 16a or the machine tool 18a, in particular as belonging to a certain series of machine tools 18a. The tag element 138a is formed as a static tag element 138a. The identification element 138a is provided for a non-marking identification. The identification element 138a is at least substantially free of energy consumption. The marking element 138a has a first surface structuring 140a. The first surface structuring 140a is formed as a silver coating of the marking element 138a. The identification element 138a has a second surface structuring 142a. The second surface structuring 142a is formed as an embossment of the identification element 138a. The identification element 138a is at least essentially designed as a clasp. The identification element 138a is curved at least in sections. The marker member 138a is formed of a material different from the material of the first case shell member 48a and the second case shell member 50a. The identification element 138a is formed from a metal, in particular from a spring steel. The marking element 138a is arranged on an upper side 144a of the housing unit 16a. The housing unit 16a has two connecting pins 146a. The Ver connecting pins 146a are provided to a connection of the second Gehäuseschalenele element 50a with a diaphragm 148a of the housing unit 16a and with the first housing shell member 48a. Alternatively, it is conceivable that the Ge housing unit 16a is formed free of the connecting pins 146a and the first housing shell member 48a via other fasteners, for example, snap hook, with the second housing shell member 50a ver prevented. The aperture 148a is on the top 144a of the housing unit 16a arranged. The marker 138a and the aperture 148a are provided to cover the connecting pins 146a. The Kennzeichnungsele element 138a may extensions to a fixation of the first Gehäuseschalenele element 48a, the second housing shell member 50a and / or the aperture 148a together. The extensions can be formed as at least sections bends of the identification element 138a. The first housing shell element 48a, the second housing shell element 50a and / or the diaphragm 148a may / have at least one groove into which at least one extension of the identification element 138a fixes the first housing shell element 48a, the second housing shell element 50a and / or the diaphragm 148a to one another can intervene. The marking element 138a may be magnetic to a magnetic fixing of the first Gehäusescha lenelements 48a, the second housing shell member 50a and / or the Blen de 148a to each other magnetically.

FIG. 8 shows a frontal view of a part of the machine tool 18a in a perspective illustration. There is shown a tool side 150a of the housing unit 16a. Shown is the tool receiving area 92a. The tool receiving area 92a is at least substantially circular in shape. Through a center of the tool receiving portion 92a, the output shaft 82a extends. The further fixing elements 86a of the housing unit 16a are arranged around the center. In each case one of the further fixing elements 86a is arranged at a corner point of an imaginary equilateral triangle, through the center of which the output shaft 82a extends. The first housing element 48a and / or the second housing shell element 50a has at least one ventilation opening 152a arranged on the tool receiving area 92a of the first housing shell element 48a and / or of the second housing shell element 50a. Rich on the Werkzeugaufnahmebe 92 a two vents 152 a of the second Gehäuseschalenele element 50 a are arranged. The ventilation openings 152a are provided for supplying air to the drive train unit 46a, in particular to the motor 78a, and / or to the machine tool device 10a. The ventilation openings 152a are formed as at least substantially rectangular recesses in the second housing shell element 50a. Alternatively, it is conceivable for the ventilation apertures 152a to be at least substantially square, elliptical, circular are round o. The like. Are formed. The ventilation openings 152a have rounded corners. The tool holder 74 a is provided in a arranged on the output shaft 82 a state to ver cover the ventilation openings 152 a. The tool holder 74a is provided to suck in air by means of a rotation of the tool holder 74a, in particular at least substantially free of dust, and to generate an air flow into the ventilation openings 152a. Within the second housing shell element 50 a of the air flow, in particular by a labyrinthine air flow guide, to the drive train to unit 46 a and / or to the machine tool device 10 a passed. The air flow is for cooling the drive train unit 46a, in particular special of the motor 78a, and / or the machine tool device 10a seen before.

The second housing shell member 50a has a switch receiving opening 154a. The switch receiving opening 154a is disposed on a tool side 150a facing side 156a of the handle 68a. A shift rod 158a of the switch unit 12a extends at least in sections through the switch receiving hole 154a. The operating switch 104a is at least partially disposed within the switch receiving opening 154a in an assembled state of the machine tool 18a (see Fig. 10). The Schalterauf receiving opening 154a has a shape corresponding to a shape of the actuating switch 104a shaping. The operation switch 104 a ver covers in a arranged on the shift rod 158 a state, the Fixierele element 56 a, which is pre-see a fixation of the machine tool device 10 a.

FIG. 9 shows the machine tool 18a in a perspective view. The first housing shell element 48a has an air outlet opening 160a. The air outlet opening 160a is arranged on the upper side 144a of the housing unit 16a, in particular of the first housing shell element 48a. The air outlet opening 160a of the first housing shell member 48a is formed as a minimum of substantially rectangular recess in the first Gehäusescha lenelement 48a. The air outlet opening 160a of the first housing shell element 48a has a main extension direction 162a, which is aligned at least substantially perpendicular to the drive axis 52a. The Air outlet opening 160a is arranged in front of the actuating element 108a, viewed from the first housing shell element 48a along the drive axis 52a in the direction of the tool side 150a. The second Gehäuseschalenele element 50 a has two air outlet openings 164 a. One of the Luftauslassöffnnun gene 164 a of the second housing shell member 50 a is disposed on a first side surface 166 a of the second housing shell member 50 a. A further one of the air outlet openings 164a of the second housing shell element 50a is arranged on a second side surface 168a of the second housing shell element 50a facing away from the first side surface 166a of the second housing shell element 50a and aligned at least substantially parallel to the first side surface 166a of the second housing shell element 50a. The second side surface 168a of the second housing shell element 50a is not recognizable due to the perspective view in FIG. The Luftauslassöff openings 164a of the second housing shell member 50a are formed as air outlet slots. The air outlet openings 164a of the second housing shell element 50a extend at least substantially parallel to the housing edge 62a of the second housing shell element 50a in a vicinity of the air outlet openings 164a of the second housing shell element 50a. The air outlet opening 160a of the first housing shell element 48a and the air outlet openings 164a of the second housing shell element 50a are provided to allow the air flow to cool the drive strand unit 46a and / or the machine tool device 10a from the housing unit 16a. The machine tool 18a may have a fan, in particular arranged on the motor 78a. The fan may be provided to convey air from an interior of the housing unit 16a through the air outlet opening 160a of the first housing shell member 48a and / or the air outlet openings 164a of the second housing shell member 50a out of the housing unit 16a.

At least on the side 156a facing the tool side 150a and / or on a side 170a of the handle 68a facing away from the tool side 150a, the handle 68a is at least substantially free of separating edges. The handle 68a is formed on the tool side 150a facing side 156a and on the side facing away from the tool side 150a side 170a of the handle 68a without separating edges. The tool side 150a facing side 156a of the handle 68a is formed by the second housing shell member 50a. The tool side 150a facing away side 170a of the handle 68a is formed by the first housing shell member 48a. The tool side 150 a of the housing unit 16 a is an outer side of the second Gehäuseschalenele element 50 a, which is seen in an assembled state of the housing unit 16 a to before to receive the tool holder 74 a. For a use of the housing unit 16a or the machine tool 18a by the user, in particular via the handle 68a, a force in the direction of the tool side 150a, in particular transversely to a main extension plane of the tool side 150a exercisable. The handle 68a has a separating edge 172a on a first outer side 174a of the handle 68a, which is oriented at least substantially perpendicularly to the side of the tool 150a facing the side 156a of the handle 68a. The handle 68a has the separating edge 172a on a two th outer side 176a of the handle 68a, which is at least substantially perpendicular to the tool side 150a facing side 156a of the handle 68a aligned. The first outer side 174a of the handle 68a faces away from the second outer side 176a of the handle 68a. Due to the perspective view, the second outer side 176a of the handle 68a is not recognizable.

The separating edge 172a runs in a meandering manner at least in sections. The first housing shell element 48a and the second housing shell element 50a are connected to each other along the meandering separating edge 172a at least to a Bil formation of a housing portion 178a to a recording of the drive train unit 46a of the machine tool 18a. A profile of the separating edge 172a at least substantially corresponds to the contact line 58a. The first housing shell member 48a and the second housing shell member 50a are interconnected to form the handle 68a along the separation edge 172a. The separating edge 172a extends at the handle 68a at least substantially linearly. The meandering profile of the separating edge 172a is formed ver different from a linear course of the separating edge 172a. The separating edge 172a extends at the housing region 178a to a receiving of the drive train unit 46a, at least in sections, in a curved manner. The separation edge 172a extends in the housing portion 178a to a receiving the drive train to unit 46a at least once arcuately. The separation edge 172a runs in the housing portion 178a to a recording of Antriebsstrangein unit 46a multiple arcuate.

The separating edge 172a extends in at least two mutually angled separating planes 84a between the first housing shell element 48a and the second housing shell element 50a. A parting plane 84a is a plane between the first housing shell member 48a and the second housing shell member 50a in which the partition edge 172a extends and which is at least substantially aligned with a contacting direction along which the first housing shell member 48a and the second housing shell member 50a are abutted against each other collide, in particular are fixed to each other. The parting planes 84a are aligned at least substantially parallel to the contact surface 64a of the first housing shell element 48a or to the contact surface 66a of the second housing shell element 50a. The housing unit 16a has a plurality of parting planes 84a, in particular at least five parting planes 84a. All parting planes 84a are angled to each other. For the sake of clarity, only a parting plane 84a is shown in which the separating edge 172a extends on the handle 68a.

FIG. 10 shows the actuating switch 104a of the machine tool 18a in a perspective view. The operation switch 104a is to Actuate movement of the machine tool device 10a and provided to cover the Fi xierelements 56a. The operation switch 104a is formed as a pusher switch. Alternatively, it is conceivable that the operation switch 104a is formed as a slide switch, a rocker switch or the like. The Actuate supply switch 104a has at least one disassembly recess 180a. The operation switch 104a is provided to conceal the fixing member 56a provided for fixing the machine tool apparatus 10a. The operation switch 104a is provided for actuating a switch element of the switch unit 12a, in particular via the switch rod 158a of the switch unit 12a. The operation switch 104a is net angeord in a mon state of the machine tool 18a on the shift rod 158a, in particular pushed onto the shift rod 158a. The actuating switch 104a is disposed in a transition region of the handle 68a in the remaining housing. The operating switch 104a is mounted in an assembled state. stood the machine tool 18 a at least partially within the scarf teraufnahmeöffnung 154 a of the second housing shell member 50 a angeord net. The operation switch 104a covers in a arranged on the shift rod 158a state, the fixing element 56a, which is provided for fixing the factory generating machine device 10a. The disassembly recess 180a is formed as a recess, in particular a partial recess, in the Actuate supply switch 104a. The disassembly recess 180a is formed at least substantially circular. The disassembly recess 180a is disposed on a side facing away from the upper side 144a of the housing unit 16a of the actuator 104a. The disassembly recess 180a is provided for, in particular tool-free, disassembly of the actuating switch 104a of the shift rod 158a. The operation switch 104a is gripped on the detachment recess 180a and detachable from the shift rod 158a.

FIG. 11 shows the handle 68a of the housing unit 16a in a perspective view. The housing unit 16a has at least one clamping element 182a. The housing unit 16a has two clamping elements 182a. The clamping elements 182a are provided at least on the handle 68a to a Klemmver connection of the first housing shell member 48a with the second housing shell member 50a together. The clamping elements 182a are at least substantially horseshoe-shaped. Alternatively, it is conceivable that the clamping elements 182a at least substantially C-shaped, U-shaped, L-shaped, half-ring-shaped o. The like. Are formed. The clamping elements 182a are formed separately from the first housing shell element 48a and the second housing element 50a. The clamping elements 182a are at least partially elastic. The clamping elements 182a have finger-like clamping extensions 184a. The clamping members 182 a are formed of a material different from a material of the first housing shell member 48 a and the second Gehäuseschalenele element 50 a. The clamping elements 182a are made of a metal, in particular a spring steel. The Klemmele elements 182 a are arranged on the handle 68 a. The clamping elements 182a are each arranged in a Wandungsausnehmung 186a of the first housing shell elements 48a and a Wandungsausnehmung 188a of the second housing shell member 50a. The wall recesses 186a, 188a are formed in correspondence with a shape of the clamping extensions 184a. det. In the Wandungsausnehmungen 186a, 188a, the clamping extensions 184a of the clamping elements 182a can be inserted. The first housing shell element 48a has two wall recesses 186a. The second Gehäuseschalenele element 50 a has two Wandungsausnehmungen 188 a. The Wandausnehmun conditions 186a of the first housing shell member 48a are up to Einführungsöff openings 190a of the first housing shell member 48a, through which the clamping extensions 184a are inserted, at least substantially closed out forms. The Wandungsausnehmungen 188a of the second Gehäuseschalenele element 50a are formed except for insertion openings 192a of the second Gehäusescha lenelements 50a, through which the clamping extensions 184a are inserted, at least substantially closed. The Wandungsausnehmungen 186a of the first housing shell member 48a and the Wandungsausnehmungen 188a of the second housing shell member 50a are formed as cavities in a wall of the first housing shell member 48a and the second housing shell member 50a. As an alternative to the wall recesses 186a, 188a, it is conceivable for the first housing shell element 48a and the second housing shell element 50a to have clamping recesses formed as partial recesses in the walls of the first housing shell element 48a and the second housing shell element 50a into which the clamping elements 182a are at least partially insertable and fixable are. The Klemmelemen te 182 a can have locking recesses for locking the battery unit 70 a at least partially within the first housing shell member 48 a and the second housing shell member 50 a on the handle 68 a on. The battery unit 70a may locking hook elements to a Verrie gelung with the clamping elements 182a, in particular with the Verriegelungsaus recesses of the clamping elements 182a having.

Figure 12 shows an alternative of a handle 68a 'in a perspective view. On the handle 68a 'is an alternative clamping element 182a' ordered to. The clamping element 182a 'is designed like a clamp. The clamping element 182a 'is provided to hold an alternative first Gehäuseschalenele element 48a' and an alternative second housing shell element 50a 'by a clamping action of the clamping element 182a' together. The Klemmele element 182a 'has two alternative clamping extensions 184a' on. The first housing shell element 48a 'has a fastening rib 194a. The second housing The salen element 50a 'has a fastening rib 196a. The fastening rib 194a of the first housing shell element 48a 'is arranged on an inner side 198a of the first housing shell element 48a'. The fastening rib 196 a of the second housing shell element 50 a 'is arranged on an inner side 200 a of the second housing shell element 50 a'. The Klemmele element 182a 'is formed on the mounting ribs 194a, 196a pushed. The clamping element 182a 'pushed onto the fastening ribs 194a, 196a exerts, in particular by means of the clamping extensions 184a', a clamping action at least substantially perpendicular to the parting plane 84a on the fastening strips 194a, 196a, through which the first housing shell element 48a 'and the second housing shell element 50a 'are fixed to each other.

FIG. 13 shows the machine tool device 10a in a perspective view. The machine tool device 10a comprises the switch unit 12a, the electronic unit 14a and the carrier unit 20a which can be arranged on the housing unit 16a. The carrier unit 20a is provided for receiving the switch unit 12a and the electronic unit 14a. The machine tool apparatus 10a is formed as a pre-assembly assembly, particularly as an electronic pre-assembly, for the machine tool 18a. The carrier unit 20a can be arranged on the inside 198a of the first housing shell element 48a. The carrier unit 20a is directly or indirectly on the Ge housing unit 16a can be arranged. The carrier unit 20a can be arranged on the housing unit 16a via at least one further component of the machine tool device 10a, in particular fixed to the housing unit 16a. The machine tool device 10a, in particular the electronic unit 14a, is provided for controlling and / or regulating the machine tool 18a, in particular the drive train unit 46a of the machine tool 18a.

The electronic unit 14a is at least partially designed as control electronics of the machine tool device 10a. The electronic unit 14a summarizes the board unit 24a. The board unit 24a is formed as a printed circuit board. The electronics unit 14a includes a microprocessor. The microprocessor is disposed on the board unit 24a. Alternatively or additionally, it is conceivable for the electronic unit 14a to have an integrated circuit, in particular an application-specific integrated circuit (ASIC), a logic circuit. see electronic circuit o. The like. Includes. The microprocessor is not shown. The electronic unit 14a has further, not shown components, such as cables and / or wires, in particular to an electrical connec tion with the carrier unit 20a, the switch unit 12a and / or components of the machine tool 18a, for example, the motor 78a on. The electronic unit 14a is provided for controlling and / or regulating the machine tool 18a, in particular the drive train unit 46a. The Elektronikein unit 14 a is provided to the motor 78 a of the drive train unit 46 a, in particular in response to a signal of the switch unit 12 a to ren activa and / or disable, in particular to open or close a circuit. The electronic unit 14a is provided, in particular in dependence on a signal of the operating element 108a, to control the motor 78a in a set direction of rotation. The electronic unit 14a is seen before to identify the battery unit 70a of the machine tool 18a, for example, based on a Kodierwiderstands the battery unit 70a. The electronic unit 14a has a memory unit in which coding resistances of battery units 70a usable by the machine tool 18a are stored. The elec tronic unit 14a is provided to compare a detected Kodierwiderstand the Ak kueinheit 70a with the stored Kodierwiderständen and Ab dependence on a match of the detected Kodierwiderstands with at least one of the stored Kodierwiderstände an energization of the motor 78a through the battery unit 70a to control and / or to regulate. The Elektronikein unit 14a is operable by means of electrical energy of the battery unit 70a. The Plati neneinheit 24 a of the electronic unit 14 a is connected via line elements 42 a, 44 a to the Akkumulatorkontaktelement 40 a of the machine tool device 10 a. The line elements 42a, 44a are soldered to the board unit 24a ver. The accumulator contact element 40a is provided to reali electrical connection between the battery unit 70a and the electronic unit 14a. The electronic unit 14a may be provided for controlling and / or regulating further components and / or functions of the machine tool 18a, in the case of displays.

The switch unit 12a is provided for activating and / or deactivating the motor 78a, in particular via the electronic unit 14a. The scarf tereinheit 12a includes an activation and / or deactivation of the engine 78a at least one switching element, such as a mechanical switch, a signal switch o. The like. The switching element is disposed within a Schalterge housing 202a and not shown in Figure 13 further. The scarf tereinheit 12 a, the shift rod 158 a on. The shift rod 158a is me mechanically and / or electrically coupled to the switching element. The shift rod 158a is provided for operation of the shift element. On the shift Stan ge 158 a, the operation switch 104 a is arranged, in particular fixed. The switch unit 12a, in particular the switching element, is provided to provide the electronic unit 14a with an electrical signal in response to an operation of the switching element. The switch unit 12a has a socket 204a. The switch unit 12a is electrically connected via the socket 204a to provide the signal with the board unit 24a. The socket 204a is arranged on a side of the switch unit 12a facing away from the switching rod 158a, in particular of the switch housing 202a.

The accumulator contact element 40a is electrically connected to the board unit 24a of the electronics unit 14a via at least one, in particular at least substantially rigid, line element 42a, 44a. The Akkumulatorkon clock element 40a is at least partially formed as a contact plate. The accumulator contact element 40a has at least one contact plug 206a, 208a, 210a, 212a, which is provided for electrical contacting with the battery unit 70a of the machine tool 18a. The accumulator contacts lement 40a has a plurality of contact plugs 206a, 208a, 210a, 212a. A first contact plug 206a is provided for electrical contacting with a positive pole of the battery unit 70a. A second contact plug 208a is provided for electrical contact with a negative pole of the battery unit 70a. A third contact plug 210a is provided for electrical contacting with a coding resistor of the battery unit 70a. A fourth contact plug 212a is provided for detecting a temperature of the battery unit 70a. The contact plug 206a, 208a, 210a, 212a are arranged in egg NEM arranged on the Akkumulatorkontaktelement 40a state of the battery unit 70a at least partially within the battery unit 70a. The contact plug 206a, 208a, 210a, 212a can be used to form a positive and / or positive connection, in particular a latch, with the battery unit 70a be provided. The battery contact element 40a is provided to electrically connect the battery unit 70a to a power supply of the electronic unit 14a and / or the motor 78a to the electronic unit 14a. The battery mulatorkontaktelement 40a is connected via the contact plug 206a, 208a, 210a, 212a with the battery unit 70a and the line elements 42a, 44a of the electronic unit 14a electrically connected to the board unit 24a.

The line elements 42a, 44a are formed as at least substantially rigid Lei device elements 42a, 44a. The line elements 42a, 44a are formed as cables. The conduit elements 42a, 44a have a diameter, a length and / or a material that enable / enable at least substantially stable positioning of the conduit elements 42a, 44a, in particular with the accumulator contact element 40a arranged on the conduit elements 42a, 44a. The line elements 42a, 44a are deformable, in particular special bendable, formed. The line elements 42a, 44a retain their shape produced by a deformation of the line elements 42a, 44a without the action of external forces on the line elements 42a, 44a. The Lei tion elements 42 a, 44 a retain their shape without the influence of external forces, which are stronger than a force of gravity, on the line elements 42 a, 44 a at. The line elements 42a, 44a are deformable in such a way that an at least substantially dimensionally accurate arrangement of the machine tool device 10a, in particular of the accumulator contact element 40a, on the housing unit 16a of the machine tool 18a is made possible. By a deformation of the line elements 42a, 44a is a position of the Akkumulatorkontaktelements 40a relative to the support unit 20a, in particular a distance of Akkumula torkontaktelements 40a of the support unit 20a, adaptable. Alternatively, it is conceivable that the line elements 42a, 44a are completely rigid, by way of example as rigid metal wires, that the line elements 42a, 44a have an at least substantially rigid sheath or the like. The electrical connection element 120a is at least substantially analogous to the Conduit elements 42a, 44a formed. The line elements 42a, 44a are at least partially on a switch receiving unit 26a of the factory generating machine device 10a, in particular to switch receiving parts 214a, 216a of the switch receiving unit 26a, out, in particular fixed. In particular, the switch receiving unit 26a has at least one guide element 218a on. The guide element 218a is to a guide, in particular to egg ner fixation, at least one line element 42a, 44a on the Schalterauf acquisition unit 26a, in particular at least one switch receiving portion 214a, 216a provided. The guide member 218a is disposed on at least one switch receiving part 214a, 216a. The switch receiving unit 26a has two guide elements 218a. At each switch receiving portion 214a, 216a of the switch receiving unit 26a, a guide element 218a is arranged in each case, which is seen to a guide, in particular to a fixation of each line member 42a, 44a on the switch receiving part 214a, 216a before. In each case one of the guide elements 218a is integrally formed with a respective one of the switch receiving part 214a, 216a. The second Schalterauf receiving part 216 a is not visible due to the perspective view in Figure 13.

The lead members 42a, 44a are provided to fix the accumulator contact member 40a in a predetermined position relative to the support unit 20a to the board unit 24a. The lead members 42a, 44a are provided to fix the accumulator contact member 40a in a predetermined position relative to a support plate 220a of the support unit 20a to the board unit 24a. The line elements 42a, 44a fix the accumulator contact element 40a to the board unit 24a such that the switch unit 12a and the switch receiving unit 26a are arranged between the carrier unit 20a, in particular the carrier plate 220a, and the accumulator contact element 40a on the carrier unit 20a. The electronic unit 14a has two elements Lei 42a, 44a, which attach the accumulator contact element 40a on the Pla turbine unit 24a. A first line element 42a connects the Plati neneinheit 24a electrically connected to the positive electrical pole of the battery unit 70a, in particular via the first contact plug 206a. A second line element 44a electrically connects the board unit 24a to the negative electrical pole of the battery unit 70a, in particular via the second contact plug 208. At least one of the line elements 42a, 44a can be designed as a thermistor, in particular to limit an electrical inrush current. The electronics unit 14a has at least one further line element 222a, 224a, which is attached to the board unit 24a and at least one of the con tact plug 206a, 208a, 210a, 212a. The electronics unit 14a has two further line elements 222a, 224a. A first further Leitungsele element 222 a is electrically connected to the third contact plug 210 a. A second further line element 224a is electrically connected to the fourth contact plug 212a. The board unit 24a is provided to detect the coding resistor of the battery unit 70a via the first further line element 222a. The board unit 24a is provided to detect the temperature of the battery unit 70a via the second wide line element 224a. The second further line element 224a is at least partially formed as a temperature sensor. The second further line element 224 a is formed as a Heißlei ter. The further line elements 222a, 224a are formed differently from the line elements 42a, 44a. The further line elements 222a, 224a are provided only for conducting an electric current. The further line elements 222a, 224a are thinner than the line elements 42a, 44a. The line elements 42a, 44a and the other line elements 222a, 224a are soldered to the board unit 24a and to the accumulator contact element 40a. The accumulator contact element 40a provides the Plati neneinheit 24a electrical energy from the battery unit 70a via the line elements 42a, 44a available. The board unit 24a provides the electrical energy at least partially via the heat sink elements 22a and the electrical connection elements 120a to the motor 78a. It is conceivable that the board unit 24a and / or the Akkumulatorkontaktelement 40a converts a elec- electric voltage and / or an electric current of the battery unit 70a in one of the motor 78a usable electrical voltage and / or one of the Mo Tor 78a usable electric power / converts.

Figure 14 shows an exploded view of a portion of the Werkzeugmaschinenvor device 10a in a perspective view. Shown are the electronic unit 14a and the carrier unit 20a. The carrier unit 20a has a support plate 220a. The support plate 220a is polygonal. The support plate 220a is formed at least substantially square. Alternatively, it is adjustable that the carrier plate 220a is at least substantially rectangular, elliptical or the like. The support plate 220a is formed as an injection molded member made of a plastic. The carrier unit 20a has at least one contact pin 226a arranged on the carrier plate 220a at least to a mechanical connection to the electronic unit 14a, in particular to the platinum. nen unit 24a of the electronic unit 14a, on. The carrier unit 20a has three contact pins 226a arranged on the carrier plate 220a. In addition, the contact pins 226a are provided for electrical connection to the electronic unit 14a, in particular to the board unit 24a of the electronic unit 14a. The contact pins 226a are materially connected to the support plate 220a.

The contact pins 226a are injected into the support plate 220a. The contact pins 226a extend at least substantially perpendicular to a main extension plane 228a of the support plate 220a away from the support plate 220a. The contact pins 226a are at least partially formed of a metal. The contact pins 226a are formed as double pins.

The board unit 24a of the electronic unit 14a has six Kontaktausneh measures 230a. In each case two of the contact recesses 230 a korrespondie ren each having one of the contact pins 226 a. The contact pins 226a extend in a arranged on the support unit 20a state of the board unit 24a of the electronic unit 14a at least substantially perpendicular to a main extension plane 232a of the board unit 24a through the Kontaktaus recesses 230a therethrough. The board unit 24a is soldered to the contact projections 230a with the contact pins 226a. The board unit 24a of the electronic unit 14a has a shape corresponding to a shape of the support plate 220a of the support unit 20a shaping to a dimensionally accurate Anord voltage on the support plate 220a. The main extension plane 228a of the carrier plate 220a and the main extension plane 232a of the board unit 24a are aligned in a state arranged on the carrier unit 20a of the electronic unit 14a at least substantially parallel to one another. The carrier unit 20a comprises at least one carrier element 28a, 30a for receiving the switch unit 12a or a switch receiving unit 26a of the machine tooling device 10a on the carrier plate 220a. The carrier unit 20a comprises two carrier elements 28a, 30a. The carrier elements 28a, 30a are arranged on the carrier plate 220a. The support elements 28a, 30a are integrally formed with the support plate 220a. The support elements 28a, 30a are formed as a locking slide nen. The support elements 28a, 30a are arranged on one of the Elektronikein unit 14a facing away from the outer side of the support plate 220a. The electronic unit 14a, in particular the board unit 24a of the electronic unit 14a, and the switch unit 12a are connected to two at least substantially parallel. aligned and facing away from each other outer sides of the Trä gerplatte 220 a arranged. The carrier plate 220a is arranged at least substantially between the electronic unit 14a, in particular the board unit 24a of the electronic unit 14a, and the switch unit 12a (see FIG.

The support unit 20a has at least one, in particular injected, cooling body element 22a, which is intended to cool the electronic unit 14a. The carrier unit 20a has three heat sink elements 22a. The cooling body elements 22a are arranged on the support plate 220a. The Kühlkör perelemente 22 a are injected into the support plate 220 a. Alternatively, it is conceivable that the heat sink elements 22a are injection-molded onto the carrier plate 220a, are screwed to the carrier plate 220a, are glued to the carrier plate 220a, soldered to the carrier plate 220a, or the like. The heat sink elements 22a are formed from a metal. The heat sink elements 22a are in a arranged on the support unit 20a state of the electronic unit 14a in contact with the electronic unit 14a, in particular with the board unit 24a of the elec tronic unit 14a. The heat sink elements 22 a are provided to receive heat energy from the electronic unit 14 a, in particular from the board unit 24 a of the electronic unit 14 a, and forward away from the electronic unit 14 a. The support unit 20a may include at least one heat conduction means, such as a thermal grease, attached to the heatsink elements 22a, which is provided to assist in absorbing heat energy through the heatsink elements 22a.

The heat sink elements 22a extend along an at least in wesent union complete maximum extent of the support plate 220a in a first direction 234a. Each of the heat sink elements 22 a has two contact extensions 124 a. The contact extensions 124a are configured as angled sections of the heat sink elements 22a, at least in sections, in particular at least substantially vertically. Each two contact extensions 124a are formed as two mutually remote ends of a respective heat sink element 22a ent long a main extension direction 236a of the heat sink element 22a out. The contact extensions 124a extend at least substantially perpendicular to the main extension direction 236a of the heat sink element 22a and to the main extension plane 228a of the carrier plate 220a from the carrier plate 220a away. The contact extensions 124a extend at least substantially in the direction of a side facing away from the switch unit 12a side of the carrier plate 220a. The heat sink elements 22a are disposed one behind the other on the carrier plate 220a along a second, at least substantially perpendicular to the first direction 234a and at least substantially parallel to the main extension plane 228a of the support plate 220a direction, in particular injected into the carrier plate 220a. The second direction 238a is aligned at least substantially perpendicular to the main extension direction 236a of the heat sink elements 22a. Along the second direction 238a are on a first side 240a of the support plate 220a and on a second, the first side 240a of the support plate 220a opposite side 242a of the support plate 220a each three contact extensions 124a arranged behind the other. The on the second side 242a of the support plate 220a angeord Neten contact extensions 124a are not visible in Figure 14 due to the exploded view. The heat sink elements 22a delimit an extension of the board unit 24a of the electronic unit 14a along the first direction 234a. The contact extensions 124a limit the extent of the board unit 24a along the first direction 234a. The board unit 24 of the electronic unit 14 a is fixed by the heat sink elements 22 a, in particular by the contact extensions 124 a along the first direction 234 a. The board unit 24a of the electronics unit 14a extends beyond the carrier board 220a along the second direction 238a.

The board unit 24a is electrically connected to the heatsink elements 22a in an assembled state of the machine tool 10a. The board unit 24a is electrically connected to the heat sink elements 22a via the contact pins 226a. In each case a contact pin 226a is electrically conductively connected to a respective heat sink element 22a. In each case, a heat sink element 22a is formed integrally with one contact pin 226a each. Alternatively, it is conceivable that in each case a heat sink element 22a is materially connected, for example mitels a solder joint, each having a contact pin 226a. In each case, a heat sink element 22a is at least partially connected within the support plate 220a, each with a contact pin 226a. The contact pins 226a and the heat sink elements 22a extend at least partially within the carrier plate 220a. In each case one heat sink element 22a and one each Clock pin 226a are integrally injected into the carrier plate 220a. The Kontaktforts sets 124a are provided for electrical contacting with the electrical connec tion elements 120a of the electronic unit 14a. In each case an electrical cal connecting element 120a is electrically connected to at least one Kon contact extension 124a per heat sink element 22a, in particular soldered to the contact extension 124a (see Figure 4). At each contact extension 124a depending Weil a heat sink element 22 a is the same electrical voltage.

FIG. 15 shows an exploded view of the machine tool device 10a in a perspective view. The machine tool device 10a summarizes the switch receiving unit 26a, the non-positive and / or positive, in particular special via a dovetail connection, at least one Trä gerelement 28a, 30a of the support unit 20a arranged, in particular latched is. The switch receiving unit 26a is non-positively and / or positively arranged on a first support member 28a and on a second support member 30a of the Trä gereinheit 20a. The first carrier element 28a has a latching notch 244a for latching with the switch receiving unit 26a. The second carrier element 30a has a latching notch 246a for latching with the scarf teraufnahmeeinheit 26a (see Figure 17). The support elements 28a, 30a have a dovetail shape. Alternatively, it is conceivable that the Trägerele elements 28 a, 30 a as springs, as bungs o. The like. Are formed. The first support member 28a is disposed on the first side 240a of the support plate 220a and the second support member 30a is disposed on the second side 242a of the support plate 220a. The carrier elements 28a, 30a have main directions of extension at least substantially parallel to the second direction 238a. The scarf teraufnahmeeinheit 26 a comprises a first with the first support member 28 a corresponding groove 248 a to a positive and / or positive connec tion, in particular a locking, with the first support member 28 a. The switch receiving unit 26a includes a second with the second Trägerele element 30a corresponding groove 250a to a non-positive and / or positive connection, in particular a latching, with the second support member 30a. Alternatively, it is conceivable that the switch receiving unit 26a has at least one carrier element and that the carrier unit 20a has at least one groove corresponding to the carrier element of the switch receiving unit 26a. The switch receiving unit 26a comprises a first switch receptacle. meteil 214a and a second switch receiving part 216a. The first switch receiving portion 214a includes the first groove 248a. The second switch receiving part 216a includes the second groove 250a. The switch receiving parts 214a, 216a have main extension planes, which are aligned at least substantially perpendicular to the main extension plane 228a of the carrier plate 220a in a state arranged on the carrier unit 20a th state of the switch receiving unit 26a.

The switch receiving unit 26a has at least one switch receiving element 32a, 34a for arranging the switch unit 12a on the carrier unit 20a. The switch receiving unit 26a has a first switch receiving element 32a and a second switch receiving element 34a. The first switch receiving element 32a is formed as an extension of the first switch receiving part 214a. The second switch receiving element 34a is formed as an extension of the second switch receiving part 216a. Main extension directions of the extensions extend at least substantially parallel to the grooves 248a, 250a of the switch receiving parts 214a, 216a. The first switch receiving element 32 a is formed as an angled portion of the first switch receiving part 214 a. An angled portion of the first switch receiving portion 214a forms the extension. The second switch receiving element 34a is formed as an angling of the second switch receiving part 216a. An angled portion of the second switch receiving portion 216a forms the extension. The switch receiving portions 214a, 216a are angled in a state arranged on the support unit 20a of the switch receiving portions 214a, 216a along the first direction 234a toward a center of the support plate 220a. The switch unit 12a, in particular the switch housing 202a, is fixed between the switch receiving parts 214a, 216a along the first direction 234a. The scarf tereinheit 12 a, in particular the switch housing 202 a, is at least substantially We sentlichen perpendicular to the main extension plane 228 a of the support plate 220 a fixed by the switch receiving elements 32 a, 34 a.

The switch receiving unit 26a has at least one coupling element 36a, 38a for coupling with the housing unit 16a of the machine tool 18a. The switch receiving unit 26a has a first coupling element 36a and a second coupling element 38a. The coupling elements 36a, 38a are designed as fastening ribs. The first coupling element 36a is disposed on the first switch receiving part 214a. The first coupling element 36a is formed integrally with the first switch receiving part 214a. The first coupling element 36a is arranged on a side of the first switch receiving part 214a facing away from the first groove 248a. The first coupling element 36a extends at least substantially perpendicular to the main plane of the first switch receiving part 214a and at least substantially parallel to the second direction 238a. The second coupling element 38a is arranged on the second switch receiving part 216a. The second coupling member 38 a is integrally formed with the second switch receiving part 216 a. The second coupling element 38a is arranged on one of the second groove 250a from the turned side of the second switch receiving part 216a. The second coupling element 38a extends at least substantially perpendicular to the main extension plane of the second switch receiving part 216a and at least substantially parallel to the second direction 238a. The Schalterauf receiving unit 26 a comprises a first further coupling element 252 a and a second further coupling element 254 a. The first further coupling element 252a is arranged at a distance from the first coupling element 36a on the first switch receiving part 214a, in particular integrally formed with the first switch receiving part 214a. The first further coupling element 252a extends at least substantially parallel to the first coupling element 36a. The second further coupling element 254a is arranged at a distance from the second coupling element 38a on the second switch receiving part 216a, in particular integrally formed with the second switch receiving part 216a. The second further coupling element 254a extends to at least substantially parallel to the second coupling element 38a (see Figure 17).

FIG. 16 shows a further part of the machine tool 18a in a perspective representation. Shown is the first housing shell element 48a. At least partially within the first housing shell element 48a, the motor 78a and the machine tool device 10a are arranged. The machine tool device 10a is arranged by means of the coupling elements 36a, 38a and by means of the further coupling elements 252a, 254a on the mounting extensions 102a. The machine tool device 10a is connected by means of the coupling Lung elements 36a, 38a and mitels the other coupling elements 252a, 254a without tools on the first housing shell element 48a, in particular on the mounting projections 102a, respectively. Due to the perspective view, only one of the mounting extensions 102a can be seen. The mounting extension 102a extends between the first coupling element 36a and the first further coupling element 252a. Similarly, another of the mounting sets 102a extends between the second coupling element 38a and the second further coupling element 254a.

On the first housing shell element 48a, the fastening receptacle 54a is arranged. In the fastening receptacle 54 a, the fixing element 56 a is arranged that the at least substantially complete Werkzeugmaschinenvor device 10 a at least partially fixed within the first housing shell member 48 a. The switch unit 12a has a fixing recess 256a, through which the fixing element 56a can be introduced into the fastening receptacle 54a. The fastening receptacle 54 a is at least substantially tubular ausgebil det. The fastening receptacle 54a has a with the fixing 56a korres pondierendes internal thread. The fastening receptacle 54a extends at least substantially parallel to the drive axle 52a. The mounting receptacle 54 a is arranged on the inner side 198 a of the first housing shell element 48 a. The fastening receptacle 54a is formed integrally with the first housing shell element 48a. The fastening receptacle 54a is provided for fastening the first housing shell element 48a and the second housing shell element 50a to one another. The fixation element 56a provided for fixing the machine tool device 10a is provided for fixing the first housing shell element 48a and the second housing shell element 50a. The fixing element 56a fixes the at least substantially complete machine tool device 10a and the second housing shell element 50a to the fastening receptacle 54a, in particular to the first housing shell element 48a (see FIG.

The mounting receptacle 54 is provided to the Akkumulatorkontaktele element 40 a of the machine tool device 10 a spatially separated from the switch unit 12 a unit. The fastening receptacle 54a extends in a state of the machine tool device arranged on the housing unit 16a. tion 10a at least in sections between the switch unit 12a and the Akkumulatorkontaktelement 40a. The attachment receptacle 54a is in contact with the switch unit 12a and the accumulator contact element 40a. The attachment receptacle 54a is in contact with the switch unit 12a on a first side of the attachment receptacle 54a. The fastening receptacle 54 a is on a second, the first side of the fastening receptacle 54 a abge facing side of the fastening receptacle 54 a in contact with the accumulator contact element 40 a. The switch unit 12a and the accumulator contact element 40a are at least partially mounted on the fastening receptacle 54a. The line elements 42a, 44a and the further line elements 222a, 224a have a maximum extent, which allows the arrangement of the switch unit 12a and of the accumulator contact element 40a about the attachment receptacle 54a. The line elements 42a, 44a are deformable in such a way that the switch unit 12a and the accumulator contact element 40a can be arranged around the fastening input 54a. The line elements 42a, 44a and the further line elements 222a, 224a are not further illustrated in FIG.

The contact surface 64a of the first housing shell element 48a is defined by a maximum length of the housing edge 60a of the first housing shell element 48a and by a wall thickness 258a of the first housing shell element 48a. The housing edge 60a of the first housing shell element 48a bounds the first housing shell element 48a in a direction that is oriented at least substantially perpendicular to the housing edge 60a and the wall thickness 258a of the first housing shell element 48a.

FIG. 17 shows the machine tool device 10a in a further perspective view. The motor 78a of the drive train unit 46a is electrically connected to the machine tool device 10a. The motor 78a is electrically connected to the machine tool 10a via three electrical connection members 120a. In each case, an electrical connection element 120a is electrically ver each with a terminal contact 122a of the motor 78a connected, in particular soldered. In each case an electrical connection element 120a is electrically connected to a respective heat sink element 22a. In each case, an electrical connection element 120a is electrically connected to one contact extension 124a of a respective heat sink element 22a, in particular soldered. The electrical connection elements 120a are formed at least substantially wesent rigid. The electrical connection elements 120a fix the motor 78a in a predetermined position relative to the machine tool apparatus 10a. The electrical connection elements 120a fix the motor 78a in a predetermined position relative to the support plate 220a and to the board unit 24a.

The switch unit 12a is provided to provide the board unit 24a with an electrical or electronic signal in response to an operation of the switching element of the switch unit 12a via at least one signal line element 264a of the electronic unit 14a. The signal line element 264a is designed as a cable, in particular as a flat cable. One end of the signal line element 264a is disposed on the board unit 24a, in particular soldered to the board unit 24a. Another end of the signal line element 264a is connected to the switch unit 12a. The other end of the signal line element 264a is formed as a plug. The other end of the signal line element 264a is plugged into the socket 204a of the scarf tereinheit 12a. Alternatively or additionally, it is conceivable that components of the machine tool device 10a, in particular the carrier unit 20a, the switch unit 12a and / or the electronic unit 14a are at least partially electrically conductive and / or integrated electrical Leitungsele elements, for example, conductor tracks have. The electronics unit 14a has another signal line element 266a. The other signal line element 266a electrically connects the board unit 24a to the motor 78a. The Plati neneinheit 24 a is provided to the motor 78 a via the further Signallei element 266 a to control. The further signal line element 266a is formed as a cable. The further signal line element 266a is at least substantially analogous to the electrical connection elements 120a ausgebil det. One end of the further signal line element 266a is arranged on the board unit 24a, in particular soldered to the board unit 24a. A wide res end of the other signal line element 266a is connected to the motor 78a a related party. The further end of the further signal line element 266a is designed as a plug. The further end of the further signal line element 266a is plugged into a motor socket 268a of the motor 78a. In the following, a method for mounting the Werkzeugmaschinenvor device 10 a, in particular with reference to the preceding figures, described. In at least one method step, the switch unit 12a and the electronics unit 14a are received on the carrier unit 20a. The electronics unit 14a, in particular the board unit 24a of the electronic unit 14a, is arranged on the outside of the carrier unit 20a, in particular the carrier plate 220a of the carrier unit 20a, and fixed by means of the contact pins 226a, in particular soldered to the contact pins 226a. The switch unit 12a is disposed on the outside of the electronics unit 14a facing away from the outer side of the support unit 20a, in particular the support plate 220a of the support unit 20a.

In at least one further method step, the switch receiving unit 26a is non-positively and / or positively, in particular via a dovetail connection, arranged on at least one support element 28a, 30a of the support unit 20a, in particular locked. The switch receiving unit 26a, in particular special switch receiving portions 214a, 216a of the switch receiving unit 26a, by means of the grooves 248a, 250a to the switch receiving portions 214a, 216a non-positively and / or positively arranged on the support elements 28a, 30a. The first switch receiving part 214a of the switch receiving unit 26a is disposed on the first support member 28a. The second switch receiving part 216a of the switch receiving unit 26a is arranged on the second support member 30a is.

In at least one further method step, the switch unit 12a is arranged on the carrier unit 20a by means of at least one switch receiving element 32a, 34a of the switch receiving unit 26a. The switch unit 12a is arranged on the carrier unit 20a by means of two switch receiving elements 32a, 34a of the switch receiving unit 26a, in particular of the switch receiving parts 214a, 216a. The switch unit 12a, in particular the switch housing 202a, is slid between the switch receiving parts 214a, 216a and the switch receiving elements 32a, 34a and fixed by the switch receiving parts 214a, 216a and the switch receiving elements 32a, 34a.

In at least one further method step, the accumulator contact element 40a is connected to a power supply of at least the electronics unit 14a is provided, via at least one, in particular at least substantially rigid, line element 42a, 44a electrically connected to the board unit 24a of the electronic unit 14a. The battery contact element 40a is electrically connected to the board unit 24a of the electronic unit 14a via the first line element 42a and the second line element 44a. The line elements 42a, 44a are soldered to the board unit 24a. The Leitungsele elements 42 a, 44 a are soldered to the Akkumulatorkontaktelement 40 a. The first line element 42a is soldered to the first contact plug 206a of the battery mulatorkontaktelements 40a. The second lead member 44a is soldered to the second contact plug 208a of the accumulator contact member 40a. The line elements 42a, 44a are reshaped in such a way that the switch unit 12a and the accumulator contact element 40a can be arranged around the attachment receptacle 54a. The battery contact element 40a is electrically connected to the board unit 24a via the two further line elements 222a, 224a.

With regard to further method steps of the method for assembling the machine tool device 10a, reference may be made to the preceding description of the machine tool device 10a, since this description is also analogous to the method to read and thus all features out visually the machine tool device 10a also in relation to the procedural ren for mounting the machine tool device 10 a as disclosed gel th.

In at least one method step of a method for assembling the machine tool 18a, the first housing shell element 48a and the second housing shell element 50a of the housing unit 16a are fixed to one another via the drive strangeunit 46a along the drive axle 52a of the drive train unit 46a. The first housing shell element 48a and the second housing shell element 50a are fixed to one another via the receiving element 88a and via the further fixing elements 86a on the drive train unit 46a and via the drive train unit 46a.

In at least one further method step for assembling the machine tool 18a, the gear 80a of the drive train unit 46a becomes fixed by means of the gear cover 96a of the drive train unit 46a to the motor 78a of the drive train unit 46a. The at least substantially complete drive train unit 46a is preassembled. The gear cover 96a is fixed to the motor 78a and / or to the gear 80a by means of at least one fastening element, in particular a screw and / or at least one connecting pin 128a.

In at least one further procedural step of the method for assembling the machine tool 18a, the drive string unit 46a is arranged on the receiving element 88a, in particular the locking tab, which is arranged on the first housing shell element 48a and / or on the second housing shell element 50a, and by means of which the first housing shell element 48a is connected to the second housing shell member 50a, at least partially within the first housing shell member 48a and / or the second housing shell member 50a by a connection with the Verbindungsele elements 94a of the drive train unit 46a attached. The preassembled drive strangeunit 46a is at least partially inserted into the receiving element 88a, in particular the special locking tab, wherein the locking plates tabs 98a are spread open by the at least stepwise ramp-like design of the connecting elements 94a and the latching recesses 100a engage with the connecting elements 94a.

In at least one further procedural step of the method for assembling the machine tool 18a, the machine tool device 10a, which is provided in particular for controlling and / or regulating at least the drive strangeunit 46a, by means of the fixing element 56a of the housing unit 16a, in particular a screw, on the Attachment 54a of the housing unit 16a fixed. The machine tool device 10a, in particular special switch receiving unit 26a, is pelt gekop by means of the coupling elements 36a, 38a of the switch receiving unit 26a with the housing unit 16a, in particular arranged on the mounting projections 102a. The tool machine device 10a, in particular the switch receiving unit 26a, is fixed by means of the fixing element 56a to the first housing shell element 48a and / or to the second housing shell element 50a, in particular to the fastening receptacle 54a. Mitels of the fixing element 56a are the Machine tool device 10a and the second housing shell element 50a, in particular at the same time, fixed to the first housing shell element 48a fi.

In at least one further method step of the method for mounting the machine tool 18a, the tool holder 74a is arranged on the drive odd unit 46a, by means of which at least one further fixing element 86a of the housing unit 16a, in particular a screw, and / or the Belüf device openings 152a of the first housing shell member 48a and / or the second housing shell element 50a are concealed. The tool holder 74a is disposed on the tool receiving portion 92a and fixed to the drive train unit 46a. The tool holder 74 a is attached to the drive shaft from 82 a, in particular screwed by means of the thread 106 a from the drive shaft 82 a. By means of the tool holder 74a all Liche on the tool receiving portion 92a arranged further Fixierele elements 86a are covered. By means of the tool holder 74a, the two ventilation openings 152a arranged on the tool receiving area 92a are concealed.

With regard to further method steps of the method for mounting the machine tool 18a, reference may be made to the preceding description of the machine tool 18a, since this description is also analogous to the method to read and thus all features with respect to the machine tool 18a also in relation to the method assembly of the machine tool 18a are considered to be disclosed.

In the figures 18 to 20, a further embodiment of the invention is GE shows. The following descriptions and the drawings are essentially limited to the differences between the embodiments, with respect to the same designated components, in particular with respect to compo le with the same reference numerals, in principle, to the drawings and / or the description of the other embodiment, in particular the figures 1 to 17, can be referenced. To distinguish the embodiments, the letter a is the reference numerals of the embodiment in the figures 1 to 17 adjusted. In the embodiment of Figures 18 to 20, the letter a is replaced by the letter b.

FIG. 18 shows an exploded view of an alternative machine tool 18b in a schematic representation. The machine tool 18b comprises a housing unit 16b. The housing unit 16b has a first housing shell element 48b and a second housing shell element 50b. The machine tool 18b comprises a drive train unit 46b. The drive train unit 46b has a motor 78b, a gear cover 96b, and a gear 80b. The transmission cover 96b is provided for coupling the engine 78b to the transmission 80b. The transmission cover 96b can be connected to the transmission 80b by means of connecting pins 128b of the drive train unit 46b. The Werkzeugma machine 18b includes a tool holder 74b. The housing unit 16b includes a fixing element 56b and further fixing elements 86b. The Werkzeugma machine 18b includes a Werkzeugmaschinenvorrich device 10b not shown. The housing unit 16b comprises a receiving element 88b. The receiving element 88b is formed separately from the first housing shell member 48b and the second housing shell member 50b. The receiving element 88b can be arranged on the first housing shell element 48b. The receiving element 88 b is at least partially within the first Gehäuseschalenele element 48 b can be arranged.

Figure 19 shows an exploded view of a part of the housing unit 16b in a perspective view. Shown is the first housing shell element 48b and the receiving element 88b. The receiving element 88b is at least partially introduced into the first Gehäuseschalenele element 48b along a third direction of the arrow 260b. The receiving element 88 b is fixed to the first housing shell element 48 b. The receiving element 88b can be fixed on an inner side 198b of the first housing shell element 48b. The receiving element 88b can be fixed to the first housing shell element 48b by means of three additional fixing elements 262b of the housing unit 16b. In a state fixed to the first housing shell element 48b of the receiving element 88b, the receiving element 88b is disposed at least substantially analogously to the receiving element 88a of the first exemplary embodiment on the first housing element 48b. Figure 20 shows a partial exploded view of the machine tool 18b in a perspective view. The second housing shell element 50b is fixed to the drive strand unit 46b by means of four further fixing elements 86b. The further fixing elements 86b are arranged on a tool receiving region 92b of the housing unit 16b. In each case one of the further fixing elements 86b is arranged at a respective corner point of an imaginary square, through the center of which an output shaft 82b of the drive train unit 46b extends along a drive axle 52b of the drive train unit 46b. The tool receiving area 92b is formed free of ventilation openings. Alternatively, it is conceivable that 92b ventilation openings are arranged on the tool receiving area.

Hereinafter, a method of assembling the machine tool 18b will be described. In particular, additional and / or different method steps, in particular with reference to the figures 18 to 20 described in comparison to the method for a Mon days of the machine tool 18 a of the first embodiment. In at least one method step of assembling the machine tool 18b, the receiving element 88b, in particular the locking tab, the housing unit 16b is arranged on the first housing shell element 48b and / or on the second housing shell element 50b, in particular with the first housing shell element 48b and / or bolted to the second housing shell element 50b. The sepa rat of the first housing shell member 48 b and the second housing shell member 50 b present receiving element 88 b is arranged on the first Ge häuseschalenelement 48 b, in particular screwed to the first housing shell member 48 b. The receiving element 88b is arranged on the inner side 198b of the first housing shell element 48b.

Claims

claims

1. Machine tool device with at least one switch unit (12a), with at least one electronic unit (14a) and with at least one housing unit (16a; 16b) of a machine tool can be arranged carrier unit (20a), characterized in that the carrier unit (20a) to a Recording the switch unit (12 a) and the Elektronikein unit (14 a) is provided.

2. Machine tool device according to claim 1, characterized in that the carrier unit (20 a) at least one, in particular injected tes, heat sink element (22 a), which is provided to the elec tronic unit (14 a) to cool.

3. Machine tool device according to claim 2, characterized in that the electronic unit (14a) has at least one board unit (24a) which is electrically connected to the heat sink element (22a).

4. Machine tool device according to one of the preceding Ansprü surface, characterized by at least one switch receiving unit (26 a), the non-positively and / or positively, in particular via a Schwal benschwanzverbindung, arranged on at least one support element (28 a, 30 a) of the carrier unit (20 a), in particular locked, is.

5. Machine tool device according to claim 4, characterized in that the switch receiving unit (26 a) at least one Schalterauf receiving element (32 a, 34 a) to an arrangement of the switch unit (12 a) on the carrier unit (20 a).

6. Machine tool device according to claim 4 or 5, characterized in that the switch receiving unit (26a) has at least one coupling element (36a, 38a) for coupling with a housing unit (16a, 16b) of a machine tool.

7. Machine tool device according to one of the preceding Ansprü surface, characterized by at least one Akkumulatorkontaktelement (40a) which is provided to a power supply at least the electronics unit (14a) and the at least one, in particular at least substantially rigid, line element (42a, 44a) electrically with at least one circuit board unit (24a) of the electronic unit (14a) is connected.

8. Machine tool, in particular electric screwdriver, with at least one machine tool device according to one of the preceding Ansprü surface.

9. A machine tool according to claim 8, characterized by at least one drive train unit (46a, 46b) and at least one housing unit (16a, 16b), which comprises at least a first housing shell element (48a, 48b) and at least one second housing shell element (50a, 50b) via the drive train unit (46a; 46b) and / or via the machine tool device along a drive axle (52a; 52b) of the drive strangeunit (46a; 46b) are fixed to one another.

10. Machine tool according to claim 8 or 9, characterized in that the housing unit (16a, 16b) at least one seschalenelement (48a, 48b) on the first housing and / or on the second housing shell element (50a, 50b) arranged fastening receptacle (54a) to a receptacle of a fixing element (56a, 56b), in particular a screw, which at least partially fixes the at least substantially complete machine tool device at least partially within the first housing shell element (48a, 48b) and / or the second housing shell element (50a, 50b).

11. Machine tool according to claim 10, characterized in that the fastening receptacle (54 a) is provided to at least one Ak kumulatorkontaktelement (40 a) of the machine tool device spatially Lich from the switch unit (12 a) to separate.

12. A method for mounting a machine tool device, in particular a special machine tool device according to one of claims 1 to 7, characterized in that in at least one process step at least one switch unit (12 a) and at least one electronic unit (14 a) on at least one carrier unit (20 a ) who took the.

13. The method according to claim 12, characterized in that in at least one method step at least one switch receiving unit (26a) non-positively and / or positively, in particular via a dovetail joint, arranged on at least one carrier element (28a, 30a) of the carrier unit (20a) , in particular locked, is.

14. The method according to claim 13, characterized in that in at least one method step, the switch unit (12a) by means of at least egg Nes switch receiving element (32a, 34a) of the switch receiving unit (26a) on the support unit (20a) is arranged.

15. The method according to any one of claims 12 to 14, characterized in that in at least one method step at least one Akkumula torkontaktelement (40a) which is provided to a power supply at least the electronics unit (14a) via at least one, in particular at least substantially rigid, Conduction element (42 a, 44 a) is electrically connected to at least one board unit (24 a) of the electronic unit (14 a) a related party.