Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
  • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
  • B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
  • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
  • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/10—Primary casings; Jackets or wrappings
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
  • H02J7/1415—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with a generator driven by a prime mover other than the motor of a vehicle
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
  • H02K11/30—Structural association with control circuits or drive circuits
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
  • Y02E60/10—Energy storage using batteries

Definitions

• the invention relates to a system comprising at least an electronically commutated electric motor of a defined size and a
• Claim includes at least at least one first hand tool, which has at least one first interface, which can correspond to at least one rechargeable battery of a voltage class.
• first hand tool which has at least one first interface, which can correspond to at least one rechargeable battery of a voltage class.
• first interface can correspond to at least one rechargeable battery of a voltage class.
• the electrical energy can be transmitted via the interface of the power tool.
• Power transmission can be wired or wireless.
• a wireless energy transfer can be done for example via inductive energy transfer.
• the system further comprises at least one electronically commutated electric motor of a defined size.
• a size should be understood here a length and a diameter.
• the length of the electronically commutated Electric motor is defined by a package length.
• the diameter is from the
• Diameter of a motor housing formed.
• At least one first electronic unit is at least provided to control and / or regulate the electronically commutated electric motor.
• control is to be understood in particular to mean that the electronic unit, depending on a parameter of the electronically commutated electric motor, generates a control signal for provides the electronically commutated electric motor.
• At least one first switching element activates the electronically commutated
• the system further comprises at least one second hand tool machine having at least one second interface that can correspond to the rechargeable battery of a voltage class.
• At least one second electronic unit is provided to control and / or regulate the electronically commutated electric motor.
• At least one second switching element is provided for activating the electronically commutated electric motor.
• the system further includes at least one rechargeable battery of a voltage class. It is proposed that the rechargeable battery of a voltage class be connected either to the first interface of the first
• Hand tool can correspond or correspond with the second interface of the second hand tool.
• “correspond” is meant in particular “connect” or “attach” understood.
• the rechargeable battery of a voltage class can thus supply either the first hand tool with electrical energy or provide the second hand tool with electrical energy.
• the electronically commutated electric motor is received by a first housing part of the power tool.
• the electronically commutated electric motor defines a first axis coaxial with an output shaft.
• the output shaft is at least provided to drive a machining tool.
• the electronically commutated electric motor drives the output shaft directly.
• directly should be understood in particular here that the electronically commutated electric motor is connected via the output shaft with the machining tool without the interposition of a conventional transmission.
• the length of the electronically commutated electric motor defines a length of the first housing part
• a compact design of the first housing part can be achieved, since space can be saved by eliminating a conventional transmission.
• space is created in the power tool, which is suitable to accommodate electric motors that are capable of delivering high torque and therefore can work without the need for a gearbox as a direct drive.
• the electronic unit is at least partially received by a second housing part.
• the electronic unit is at least in an x-direction of the second in this embodiment
• Housing part at least partially disposed between the interface and the first housing part.
• the "x direction” is to be understood here in particular as meaning the main extension direction of the second housing part, in this way achieving a compact design of the second housing part.
• the rechargeable battery is at least partially integrated in the second housing part. It is particularly advantageous if the second housing part receives a large part of a battery length l B. Under a "major part of a battery length l B " is here in particular a Proportion that corresponds to greater than 50% of the battery length l B to be understood.
• the rechargeable battery with the second housing part defines a second axis, which is coaxial with the insertion direction of the rechargeable battery.
• the rechargeable battery is at least partially disposed on the second housing part and a majority of
• Battery length l B is outside the second housing part, wherein the rechargeable battery with the second housing part forms a second common axis which is at an angle, in particular perpendicular to the insertion direction of the rechargeable battery. In this way, another in the main extension direction of
• the first axis is at an angle a to the second axis, between 60 ° and 120 °, especially between 80 ° and
• the first axis lies in one
• Angle a to the second axis which is between 10 ° and 20 °, especially between 5 ° and 10 °, but preferably about 0 °.
• the second housing part is designed as a handle.
• the second housing part serves as a handle.
• hand should in this case be understood in particular as a component around which at least partially at least one hand of an operator can be placed in order to guide the handheld power tool.
• the rechargeable battery is replaceable, which is a flexible
• the switching element is arranged in the second housing part, wherein the switching element can be designed as a slide switch, a deadman switch, as a throttle switch or as a locking switch. But it is also conceivable that the switching element can be designed as a slide switch, a deadman switch, as a throttle switch or as a locking switch. But it is also conceivable that the switching element can be designed as a slide switch, a deadman switch, as a throttle switch or as a locking switch. But it is also conceivable that the switching element can be designed as a slide switch, a deadman switch, as a throttle switch or as a locking switch. But it is also conceivable that the switching element can be designed as a slide switch, a deadman switch, as a throttle switch or as a locking switch. But it is also conceivable that the switching element can be designed as a slide switch, a deadman switch, as a throttle switch or as a locking switch. But it is also conceivable that the switching element can be designed as a slide switch,
• Switching element is designed as an electronic switch, a sensor switch or the like. Several switching elements can form a switching system from which can be selected flexibly.
• the electronically commutated electric motor has a length Ii which is between 12 and 30 mm, especially between 15 and 25 mm, but preferably between 18 and 24 mm. Furthermore, in this embodiment, the electronically commutated electric motor has a diameter di which is between 30 and 50 mm, especially between 35 and 44 mm, but is preferably 38 mm.
• Construction of the first housing part achieved.
• the electronically commutated electric motor has a length l 2 which is between 10 and 30 mm, especially between 15 and 25 mm, but is preferably 20 mm. Furthermore, in this embodiment, the electronically commutated electric motor has a diameter d 2 which is between 30 and 50 mm, especially between 35 and 45 mm, but preferably 44 mm. In this way, a powerful hand tool connected with a compact design of the first housing part is achieved.
• the electronically commutated electric motor has a length l 3 , which is between 10 and 35 mm, especially between 15 and 30 mm, but preferably 26 mm. Furthermore, in this embodiment, the electronically commutated electric motor has a diameter d 3 which is between 40 and 60 mm, especially between 45 and 55 mm, but is preferably 50 mm. In this way, a powerful hand tool connected with a compact design of the first housing part is achieved.
• the electronically commutated electric motor as
• Internal rotor motor or be designed as an external rotor motor. Is the
• Commutated electric motor is an external rotor motor, is the electromotive
• the electronically commutated electric motor has a rotor and a sensor element.
• the sensor element is advantageously provided to detect an angular position of the rotor, which of the
• Commutation done and the required torque of the electronically commutated electric motor can be generated.
• the commutation is sensorless.
• the length of the first housing part is particularly preferably 100 mm.
• Electric motor realized that significantly defines the length of the first housing part.
• the electronic unit calculates by means of a reference value-actual value comparison of at least one value of the parameter, which relates to the electronically commutated electric motor, at least one drive signal for the electronically commutated electric motor.
• the electronics unit is connected to an internal switch.
• An internal switch should be understood here to mean a switch which is activated by actuation of the external switching element.
• At least one parameter relating to the internal switch can be monitored.
• the parameter may be a short-circuit current that flows through a switching contact.
• the electronic unit calculates by means of a reference value-actual value comparison of at least one value of the parameter, which relates to the internal switch, at least one drive signal for the electronically commutated electric motor.
• the electronics unit can be connected to the rechargeable battery. This can advantageously at least one
• the parameter is at least one capacity of the rechargeable battery and / or one
• the electronic unit calculates by means of a nominal value-actual value comparison of at least one value of the parameter, which relates to the rechargeable battery, at least one drive signal for the electronically commutated electric motor.
• the battery voltage is in a range between 3.6 and 42V, in particular between 7.2 and 18V. Particularly preferred is the
• Operating point can be operated or can work efficiently, in an advantageous embodiment between an ecomodus and a
• Boost mode can be switched.
• boost mode is to be understood as meaning a mode in which the electronically commutated electric motor is operated particularly efficiently
• the power requirement on the electronically commutated electric motor may be limited in time and may be within the overload range of the electronically commutated electric motor
• the power boost of the electronically commutated electric motor is between 10% and 100%, especially between 20% and 50%, but preferably at 33% .
• the time limit of the boost mode is between 0 and 5 min, especially between 0 and 2, 5min
• the time limit of the boost mode is preferably between 30 s and 1 min.
• the portable power tool is preferably embodied in at least one of the following embodiments: a. angle
• Hand tool machines shown. the system according to the invention in a schematic representation, a partial view of a first invention
• Hand tool in a schematic representation, a partial view of a second housing part in a schematic representation, a partial view of a second invention
• Hand tool in a schematic representation, a first electronically commutated electric motor of defined size in a schematic representation, a partial view of the first electronically commutated
• Electric motor defined size in a schematic representation a second electronically commutated electric motor defined size in a schematic representation, a partial view of the second electronically commutated
• Electric motor defined size in a schematic representation a third electronically commutated electric motor defined size in a schematic representation, a partial view of the third electronically commutated
• FIG. 9 shows a second embodiment of the first invention
• FIG. 10 shows a third embodiment of the first invention
• FIG. 11 a schematic representation of a third hand-held power tool according to the invention.
• Figure IIa is a partial view of the third invention
• Figure 12 is a partial view of the second invention
• FIG. 12a is a partial view of a further embodiment of the second hand tool according to the invention in a schematic representation
• Figure 13 is a partial view of a fourth invention
• FIG. 14 a schematic representation of a fifth hand tool according to the invention.
• Figure 15 is a partial view of a sixth invention
• Figure 15a is a view of the sixth invention
• FIG. 15b shows a view of a further embodiment of the sixth hand tool according to the invention in a schematic representation
• FIG. 16 a schematic representation of a seventh hand tool according to the invention
• FIG. 17 shows an eighth hand tool according to the invention in FIG. 17
• FIG. 18 shows a ninth hand tool according to the invention in FIG.
• FIG. 19 shows a tenth hand tool according to the invention in FIG.
• FIG. 1 shows a system 10 which comprises an electronically commutated electric motor 12 of a defined size and a rechargeable battery 14 of a voltage class.
• the rechargeable battery 14 serves as an electrical energy source for various hand tool machines 16a to 16j, but at least for a first hand tool 16a, as shown in Figure 2.
• the power tool 16a is designed as an angle grinder.
• the portable power tool 16b to 16j as eccentric grinder, as a straight grinder, as an oscillating multitool, as a router, as electric scraper, as a jigsaw, as a circular saw, as riveting or Sander.
• Hand tool 16a is electronically commutated
• the electronically commutated electric motor 12a points in certain
• An electronic unit 20a is provided to control and / or regulate the electronically commutated motor 12a. Upon actuation of a
• Switching element 22a of the electronically commutated electric motor 12a is activated.
• a second hand tool 16b is shown in FIG. 4 as an eccentric sander.
• the second hand tool 16b is equipped with an electronically commutated electric motor 12b of a defined size and a rechargeable battery 14. Between the electronically commutated electric motor 12b and the rechargeable battery 14, a second interface 18b is arranged.
• a second electronic unit 20b is provided to control and / or regulate the electronically commutated electric motor 12b.
• the electronically commutated electric motor 12b is activated.
• the rechargeable battery 14 is intended to be both attachable to the first interface 18a and to serve as an energy source for the first hand tool 16a, and to be attachable to the second interface 18b and to serve as the power source for the second hand tool 16b. That is, the rechargeable battery 14 may serve as an energy source for the hand tool machines 16a to 16j of different types.
• the electronically commutated electric motor 12a is received by a first housing part 30a.
• the electronically commutated electric motor 12a is received by a first housing part 30a.
• Electric motor 12a drives an output shaft 32a, which also from the first
• Housing part 30a is received.
• the output shaft 32a continues in a tool spindle 24a.
• the electronically commutated electric motor 12a drives the tool spindle 24a directly.
• Direct means that the electronically commutated electric motor 12a is connected to the tool spindle 24a without the interposition of a conventional transmission.
• Due to this design refinement, the length of the electronically commutated electric motor 12a decisively defines the length l G i of the first housing part 30 a. This means that by eliminating a conventional transmission, space can be saved. Requirements for space are at least still by the installation of motors bearings 23 a i, 23 a 2 provided.
• a machining tool 25a is arranged on the output side.
• Machining tool 25a is in the embodiment in Figures 2 and 3, for example, a grinding, roughing or cutting disc.
• Commutated electric motor 12a forms with the first housing part 30a, a first axis 26a.
• the first axis 26a is coaxial with the output shaft 32a.
• the electronics unit 20a is received by a second housing part 34a.
• the second housing part 34a is between the first housing part 30a and
• the two housing parts 30a and 34a can be made in one piece or as separate component units. As separate component units, the two housing parts can be screwed or welded or the like. The two housing parts can be rotatably connected to each other.
• the electronic unit 20a is arranged in the second housing part 34a such that the geometric dimension of the electronics unit 20a in the x direction of the second housing part 34a is with a major part of a battery length lB of the rechargeable battery 14 in the x direction of the second housing part 34a
• the proportion of "the majority of a battery length l B " is greater than 50% of the battery length l B in the embodiment in Figures 2 and 3.
• the rechargeable battery 14 forms a second axis 28a.
• the second axis 28a penetrates the rechargeable battery 14 and extends along the second housing part 34a in an axial direction of the second housing part 34a.
• the axial direction is defined here as the x direction of the hand tool 10a.
• the two axes 26a and 28a are at an angle a to each other, which is between 60 ° and 120 °, but especially between 80 ° and 100 °. Preferably, however, the angle a between the first axis 26a and the second axis 28a is approximately 90 °.
• the angle specification does not take into account manufacturing tolerances.
• the two axes 26a and 28a are at an angle a to each other, which is between 10 ° and 20 °, especially between 5 ° and 10 °, but preferably about 0 °.
• the rechargeable battery 14 is disposed in such a manner on the second housing part 34a, that a large part of the battery length l B is out of the second housing part 34a.
• the second axis 28a is here at an angle, in particular at right angles to the direction of insertion of the
• the second housing part 34a is designed as a handle or serves as a handle.
• the term "handle” is intended to mean a component around which at least one hand of an operator can be placed at least partially to guide the power tool 16a.
• the first interface 18a is a mechanical interface in the exemplary embodiment.
• the mechanical interface establishes a mechanically fixed, but detachable connection of the two housing parts 30a, 34a.
• the first housing part 30a is fixed to the second housing part 34a via the mechanical interface 18a, but releasably connected manually or by a suitable tool.
• an internal switch 36a is actuated, which turns on the electronic unit 20a.
• the electronic unit 20a is energized and / or regulates and / or controls the electronically commutated electric motor 12a.
• the switching element 22a and the electronic unit 20a are formed by the second housing part 34a
• the switching element 22a is designed as a slide switch.
• the switching element 22a as a deadman switch
• a switching system may include at least a slide switch, a deadman switch, a gas trigger switch, and a lock switch.
• Figures 5 and 5a show an electronically commutated electric motor 12 of a first size.
• the electronically commutated electric motor 12 has a length II, which is between 12 and 30 mm, especially between 15 and 25 mm, but preferably between 18 and 24 mm.
• the electronically commutated electric motor 12 can be used with the length Ii in the various hand tool machines 16a to 16j.
• the values for the length I 1 of the electronically commutated electric motor 12 do not take into account any manufacturing tolerances occurring in the engine manufacturing process.
• the electronically commutated electric motor 12 of the first size has a diameter di which is between 30 and 50 mm, especially between 35 and 44 mm, but is preferably 38 mm.
• the electronically commutated electric motor 12 can be used with the diameter di in the various hand tool machines 16a to 16j.
• Commutated electric motor 12a take no account of manufacturing tolerances occurring in the motor manufacturing process.
• Figures 6 and 6a show an electronically commutated electric motor 12 of a second size.
• the electronically commutated electric motor 12 has a length l 2 which is between 10 and 30 mm, especially between 15 and 25 mm, but is preferably 20 mm.
• the electronically commutated electric motor 12 can be used with the length l 2 in the various hand tool machines 16a to 16j.
• the values for the length l 2 of the electronically commutated electric motor 12 take no account of manufacturing tolerances occurring in the engine manufacturing process.
• the electronically commutated electric motor 12 of the second size has a diameter d 2 , which is between 30 and 50 mm, especially between 35 and 45 mm, but is preferably 44 mm.
• the electronically commutated electric motor 12 can be used with the diameter d 2 in the various hand tool machines 16a to 16j.
• commutated electric motor 12 do not take into account any manufacturing tolerances occurring in the engine manufacturing process.
• Figures 7 and 7a show an electronically commutated electric motor 12 of a third size.
• the electronically commutated electric motor 12 has a length l 3 , which is between 10 and 35 mm, especially between 15 and 30 mm, preferably but 26 mm.
• the electronically commutated electric motor 12 can be used with the length l 3 in the various hand tool machines 16a to 16j.
• the values for the length l 3 of the electronically commutated electric motor 12 do not take into account any manufacturing tolerances occurring in the engine manufacturing process.
• the electronically commutated electric motor 12 of the third size has a diameter d 3 , which is between 40 and 60 mm, especially between 45 and 55 mm, but preferably 50 mm.
• the electronically commutated electric motor 12 can be used with the diameter d 3 in the various hand tool machines 16a to 16j.
• commutated electric motor 12 do not take into account any manufacturing tolerances occurring in the engine manufacturing process.
• Electric motors designed as internal rotor motors.
• engines of this type are designed as internal rotor motors.
• stator that carries the current-carrying windings, on
• a rotor which carries the permanent magnets, is with the
• FIG. 8 shows a section through an external rotor motor.
• the stator 42 which carries the windings 44, is enclosed by the rotor 46.
• the magnetic field is generated by permanent magnets 48 in the rotor 46
• the rotor 46 is usually on the output shaft 32nd
• External rotor motor 12 may have the lengths Ii to l 3 .
• the external rotor motor 12 may have the diameter d until d. 3
• Stators triggered counter-voltage takes place.
• a sensor device may be provided to a
• Electric motors 12a to 12j the electronic units 20a to 20j always be the same
• the cooling can be passive or active. In passive cooling, the removal of thermal energy by convection takes place. With active cooling, the thermal energy of the component to be cooled is reduced by means of a cooling system
• the cooling system is a fan 52a.
• the fan 52a is mounted on the output shaft 32a and between the electronically commutated electric motor 12a and the machining tool 25a
• Output shaft 32 a is mounted, but via elements such as belt or
• Gears is connected to the output shaft 32a. It is equally conceivable that other cooling systems such as Peltier elements, heat sinks, additional actuators with air guide elements or the like are used.
• the electronic unit 20a is connected to the electronically commutated electric motor 12a.
• the electronic unit 20a monitors at least one parameter relating to the electronically commutated electric motor 12a.
• the parameter relating to the electronically commutated electric motor 12a should be understood as meaning at least one of the following parameters of the electronically commutated electric motor 12a: a load torque, an overload torque, a rotational speed, a current, a Armature voltage and / or a temperature of the electronically commutated
• the load torque describes a moment that is generated by a workpiece as a counter-torque to a drive torque.
• Cooling effect of the fan 52a so that the temperature, measured in the electronically commutated electric motor 12a, increases. Consequently, at least one of the following parameters can be monitored: exceeding the overload torque, falling below a limit value of the rotational speed, exceeding a limit value of the current, exceeding a threshold value of the armature voltage and / or exceeding a limit value of the temperature.
• the overload torque is to be understood as the moment above which the increase in temperature becomes critical for the components of the electronically commutated electric motor 12a, i. that destruction of the electronically commutated electric motor 12a can no longer be ruled out.
• the electronic unit 20a calculates by means of a reference value-actual value comparison of at least one value of the parameter at least one drive signal for the electronically commutated electric motor 12a.
• the electronics unit 20a is connected to the internal switch 36a.
• the electronic unit 20a monitors at least one parameter relating to the internal switch 36a. Below the parameter should be at least the following
• a short-circuit current that flows through a switching contact 37a.
• the switch contact 37a is located between the internal switch 36a and the electronics unit 20a.
• the electronic unit 20a calculates by means of a reference value-actual value comparison of at least one value of the parameter at least one drive signal for the electronically commutated electric motor 12a.
• the electronic unit 20 a is connected to the rechargeable battery 14.
• the electronic unit 20a monitors at least one of the
• rechargeable battery 14 related parameters. Under the parameter should at least one of the following parameters of the rechargeable battery 14 are understood: a capacity of the rechargeable battery 14 and / or an overload condition of the rechargeable battery 14.
• the electronic unit 20a calculates by means of a setpoint-actual value comparison of the value of the parameter at least one drive signal for the electronically commutated electric motor 12a.
• the battery voltage is in a range between 3.6 and 42V, especially between 7.2 and 14.4 V, but is preferably 10.8V.
• Battery voltage values here are nominal voltage values of the battery voltage and do not take into account possible battery voltage fluctuations.
• the nominal voltage of a battery results from the number of in series
• the rated voltage of the rechargeable battery 14 is not equal to the open circuit voltage of the rechargeable battery 14.
• the rechargeable battery 14 consists in particular of lithium ions
• the rechargeable battery 14 includes one or more rows of battery cells, which in turn are connected in parallel with each other.
• Each individual cell has a length of about 65 mm and a diameter of about 18 mm. But it is also conceivable that a cell has a length of 65 to 70 mm and a diameter of 14 to about 20 mm.
• Lithium ion batteries are characterized by a high energy density and thermal stability even at high loads, which means high performance. Another big advantage is the low self-discharge, which also means that the batteries are ready for use even with longer service lives. From these advantages, the advantages of the
• Hand tool machines 16a to 16j according to the invention, in particular the compactness of the hand tool machines 16a to 16j associated with a high performance.
• the rechargeable battery 14 from lithium-air cells, lithium-sulfur cells, lithium polymer cells or
• the rechargeable battery 14 in a be realized other than the geometric design shown, such as a square execution.
• the handheld power tool 16a-16j is operable in both an ecomode and a boost mode.
• the electronically commutated electric motor 12a to 12j of the handheld power tools 16a to 16j is operated at the optimum operating point.
• boost mode the electronically commutated electric motor 12a to 12j works very efficiently.
• the power overshoot of the electronically commutated electric motor 12 a to 12 j is between 10% and 100%, especially between 20% and 50%, but preferably at 33% of the nominal power.
• the time limit of the boost mode is between 0 and 5min, especially between 0 and 2.5min.
• FIG. 9 shows a second embodiment of the first hand tool 16a.
• a lighting device 56a is arranged on the first housing part 30a of the power tool 16a. The lighting device
• Illuminator 56a may illuminate a workfield but also project optical information onto a workpiece and / or environment.
• the lighting device 56a may consist of individual ones
• Illuminants and consist of a plurality of lighting means and, for example, a single LED, as well as several LEDs have.
• the lighting means can come in different designs and sizes
• the illumination device 56a can also be designed as a punctiform light source.
• the lighting device 56a is designed as a projection device.
• Illumination device 56a may have lighting elements that have various shapes on the first housing part 30a and / or on the second
• Housing part 34a can be arranged.
• the lighting device 56a may be formed as a closed light ring.
• the emitted light may have different colors.
• the light emitted by the light ring may vary in brightness. The from the
• Light ring emitted light can be a flashing light, which periodically changes the brightness.
• the light ring can be connected to the first housing part 30a and / or the second housing part 34a by gluing, snapping, clamping, clips or the like.
• the lighting device 56a may be formed as a running light.
• the light emitted by the running light may have different colors.
• the light emitted by the running light may vary in brightness.
• the running light may be connected to the first housing part 30a and / or the second housing part 34a by gluing, latching, clamping, clipping or the like.
• the parameters associated with the hand tool 16a are at least the following
• An overload condition of the hand tool 16a in particular the electronically commutated electric motor 12a, the electronics 20a and / or the rechargeable battery 14th
• the display of the parameters of the power tool 16a may be any one of the parameters of the power tool 16a.
• FIG. 10 shows a further embodiment of the invention
• Hand tool 16a The hand tool 16a is equipped with an interface 58a, which is intended to exchange data, in particular an electronic data exchange between the
• Hand tool 16a in particular the electronics 20a of
• Data processing unit 60 is preferably wireless, for example with the aid of a Bluetooth connection, Bluetooth low energy, a WLAN connection, an N FC connection, an infrared connection or the like.
• the electronics 20a controls and / or regulates the electronically commutated electric motor 12a, preferably as a function of the parameters of the handheld power tool 16a.
• the external communication and / or data processing unit 60 is preferably designed as a smart interface, for example as a smartphone, which has an app for communication with the interface 58a.
• a smart interface for example as a smartphone, which has an app for communication with the interface 58a.
• the external communication and / or data processing unit 60 is preferably designed as a smart interface, for example as a smartphone, which has an app for communication with the interface 58a.
• the external communication and / or data processing unit 60 is preferably designed as a smart interface, for example as a smartphone, which has an app for communication with the interface 58a.
• Data processing unit 60 is designed as an external, transportable communication and / or data processing unit, as permanently installed communication and / or data processing unit or as further, one skilled in the art appear appropriate centralized or decentralized communication and / or data processing unit. It can thus be advantageous
• the power tool 16c is designed as a straight grinder 16c.
• a second housing part 34c is designed as a handle.
• the housing part 34c may also be designed as a pot housing.
• the first housing 34c consists of a further housing part, for example a lid.
• the electronically commutated electric motor 12 is disposed between a rechargeable battery 14 and a tool holder 64c.
• the electronically commutated electric motor 12c can be actively decelerated via a brake, in particular via an electronic brake.
• the electronics 14c is also arranged in the housing part 34c.
• the electronics 20c energizes the electronically commutated electric motor 12c.
• the rechargeable battery 14 serves as an energy source for the electronically commutated
• the electronically commutated electric motor 12c drives a tool spindle.
• the tool holder 64c serves to receive a machining tool, not shown in more detail, for the straight grinder 16c.
• the tool holder 24c is designed as a collet.
• Machining tool may be a not-shown milling, polishing, grinding or the like.
• the tool holder 64c has a diameter d which is between 4.0 and 8.0 mm.
• the diameter d is 6.0 mm. This information does not take into account manufacturing tolerances.
• the electronically commutated electric motor 12c is an internal rotor motor.
• the electronically commutated electric motor 12c may be the electronically commutated electric motor shown in FIG.
• the speed that can be measured on the tool spindle is set.
• the Rated speed at the tool spindle at least 15 000 min ⁇ .
• the speed can be increased up to 50 000 min _1 .
• a fan 52c is integrated in the second housing part 34c. It is particularly advantageous if the fan 52c between the electronically commutated electric motor
• the fan 52c can also be arranged between the electronically commutated electric motor 12 and the electronics 20c. Just as well, it is conceivable to dispense with the fan 52c and to realize the cooling, for example, via intelligently arranged cooling ribs and / or heat sinks.
• annular disk-shaped housing wall 68c are introduced.
• air inlet openings 74c are introduced in the second housing part 34c.
• a cooling flow is generated by the fan 52c and extends from the
• the rechargeable battery 14 is connected to a rear side 75c of the straight grinder 16c facing away from the tool holder 64c.
• the battery voltage is in a range between 3.6 and 42V, especially between 7.2 and 14.4 V, but is preferably 10.8V. The values of the battery voltage do not take into account possible
• the rechargeable battery 14 is in this case connected to the straight grinder 10c such that a large part of the rechargeable battery 14 is located in the housing interior of the straight grinder 16c and thus contributes to a compact design.
• the blocking device can be designed as a slide, pin or lever.
• the spindle lock can be positive and / or non-positive. It is conceivable that on the output shaft 32c elements such as detent or Friction discs are applied.
• the blocking device can be designed as a separate component. However, it is also conceivable that the blocking device is integrated in an existing component or combined with this. Such a component may be a switching element, an actuating element or the like.
• the spindle lock can be done automatically. But it is also conceivable that the spindle lock is to be operated manually.
• Hand tool 16b shown in a schematic representation.
• the first housing part 30b of the electronically commutated electric motor 12b is arranged.
• the electronically commutated electric motor 12b is connected to the output shaft 32b.
• the output shaft 32b is connected via an eccentrically arranged bearing with a support shaft which carries the machining tool 25b.
• the machining tool 25b of the power tool 16b is in
• Embodiment a sanding pad, on the underside of an abrasive for
• Machining tool 25b of the power tool 16b has a diameter d b which is between 75 and 150 mm, but preferably between 115 and 125 mm.
• the bearing can be designed as a ball bearing and allows a self-rotation of the support shaft about an axis of rotation, which at the same time
• Rotation axis of the machining tool 25b represents.
• the axis of rotation of the support shaft is at an eccentric distance parallel to a rotational axis 78b of the output shaft 32b.
• the second housing part 34b is formed as a handle 76b
• the first housing part 30b and the handle 76b are arranged at an angle to each other.
• the first housing part 30b and the handle 76b are at an angle of approximately 90 ° to one another.
• the angle specification does not take into account manufacturing tolerances.
• the electronics 20b is arranged in the second housing part 34b.
• the electronics 20b is provided to energize the electronically commutated electric motor 12b.
• the electronics 20b is arranged in the second housing part 34b. But it is also conceivable that the electronics 20b for example, integrated in the electronically commutated electric motor 12b or executed separately.
• the second grip area 80b is designed, in particular, as a knob, which is also appealing in terms of its appearance
• the second grip area 80b is designed such that it lies particularly ergonomically in the hand of the operator.
• the electronically commutated electric motor 12b drives the support shaft in particular directly.
• directly is meant that the electronic
• Bevel gear or spur gear is connected.
• Hand tool 16b performs a swinging motion.
• the resulting stroke is in this case twice as large as the eccentric distance between the axis of rotation of the support shaft and the axis 78b.
• the electronically commutated electric motor 12b is an internal rotor motor.
• the electronically commutated electric motor 12b may be the electronically commutated electric motor shown in FIG.
• FIG. 12a A further embodiment according to the invention of the power tool 16b is shown in FIG. 12a.
• the electronically commutated electric motor 12b is an external rotor motor.
• the rotational speed is between 3,000 min-1 to 15,000 min-1, particularly preferably 8,000 rpm to 11,000 rpm. Furthermore, the speed can be reduced via an actuator.
• the fan 52b is integrated in the first housing part 30b.
• the fan 52b is connected between the electronically commutated electric motor 12 and the machining tool 25b integrated.
• other cooling systems such as Peltier elements, closed cooling circuits or the like are used. It is just as possible to dispense with the fan and to realize the cooling, for example, via intelligently arranged cooling ribs and / or heat sinks.
• a dust extraction device 82b is attached to the first housing part 30b. Drill holes distributed over the circumference are introduced into the machining tool 25b, via which grinding dust accumulating during machining of the workpiece is sucked into the first housing part 30b by means of a dust blower 83b, the dust blower 83b being fixedly connected to the output shaft 32b. The sanding dust transported through the bores of the machining tool 25b is guided via the dust suction device 82b into a dust collecting container, not shown.
• the battery voltage is in a range between 3.6 and 42V
• the handheld power tool 16d is designed as an oscillating multitool 16d.
• an electronically commutated electric motor 12d is arranged, which drives the output shaft 32d.
• a tool shaft 84d carries a not shown in detail oscillating tool to be driven.
• the second housing part 34d adjoins the first housing part 32d.
• the first housing part 32d and the second housing part 34d may be embodied in one piece or as separate component units.
• the second housing part 34d serves a user of the portable power tool 16d as a handle or is designed as a handle.
• the second housing part 34 d is also provided for insertion of the rechargeable battery 14.
• the electronically commutated electric motor 12d is an internal rotor motor.
• the electronically commutated electric motor 12 may be the electronically commutated electric motor shown in FIG.
• the output shaft 32d and the tool shaft 84d are arranged parallel to each other. However, the output shaft 32d and the tool shaft 84d can also be arranged at an angle to one another, which is between -30 and 30 °, especially between -10 and 10 °, but preferably between -3.0 and 3.0 °.
• the angle specification does not take into account possible tolerances in the
• the rotational movement of the output shaft 32d is transmitted to the tool shaft 84d via a coupling / connecting element 86d.
• the coupling / connection element 86d is between the output shaft 32d and the
• Tool shaft 84d arranged. With the aid of the coupling / connecting element 86d, the rotating movement of the output shaft 32d is transmitted into an oscillating oscillating movement of the tool shaft 84d.
• the oscillating pendulum movement is in an angular range between 0.4 and 2.5 °, especially between 0.8 and 1.6 °, but preferably between 1 and 1.4 °. Up to 30,000 oscillations are performed in one second, but especially 25,000 oscillations in one second, but preferably up to 20,000 oscillations in one second.
• the output shaft 32d is rotatably received on its end face facing the tool in a first bearing 88d and rotatably received on its side facing away from the tool in a second bearing 89d.
• the tool shaft 84d is rotatably received on its end face facing the tool in a third bearing 90d and rotatable on its side facing away from the tool in a fourth bearing 91d
• the two bearings 88d, 90d are in particular connected to one another via a bearing plate 92d.
• the bearing plate 92d is a separate component executed opposite the first housing part 30d.
• the bearing plate 92d is constructed of a metal or a composite material, whereby the strength can be increased.
• the four bearings 88d, 89d, 90d, 91d can be designed as a fixed or floating bearing.
• the fan 52d is arranged in the first housing part 30d.
• the fan 52d is mounted on the output shaft 32d and disposed between the electronically commutated electric motor 12d and the cam member 94d. But it is also conceivable that the fan 52d is not attached to the output shaft 32d, but is connected via elements such as belts or gears to the output shaft 32d. It is equally conceivable that other cooling systems such as Peltier elements, heat sinks, additional actuators with air guide elements or the like are used.
• the rechargeable battery 14 is disposed on the second housing part 34d of the portable power tool 16d. In this case, a large part of a battery length l B is integrated into the second housing part 34d.
• Insertion direction of the rechargeable battery 14 is in this case coaxial with the main extension direction of the second housing part 34d.
• the battery voltage is in a range between 3.6 and 42V
• the battery voltage is preferably 10.8 V.
• the values of the battery voltage do not take into account possible battery voltage fluctuations.
• An actuator 70d is disposed on a lower side of the second housing part 34d.
• the actuator 70d is intended to a speed and / or an operating mode, such as an ecomodus or a
• a receiving element 96d is also on the lower side of the second
• the receiving element receives a tool 98d, which is provided for a change of a machining tool.
• a pressure element 100d is arranged on the first housing part 30d and provided for enabling a tool-free change of the machining tool.
• FIG. 14 shows the handheld power tool 16e as a router 16e.
• the electronically commutated electric motor 12e is arranged in the first housing part 30e.
• the electronically commutated electric motor 12e is connected to an output shaft 32e.
• the output shaft 32e continues in a tool spindle 102e. But it is also conceivable that the output shaft 32 e via a coupling with the
• Tool spindle 102 e is connected. But it is also conceivable that the output shaft 32e via a conventional transmission or a belt drive with the
• Tool spindle 102 e is connected.
• the tool spindle 102e carries a tool holder not shown.
• the tool holder is for example a collet.
• a machining tool is inserted and tightened by a union nut.
• the machining tool is, for example, a milling tool.
• the router 16e is suitable, for example, for milling grooves or for edge milling.
• the electronics 20e is intended, inter alia, the electronic
• the electronics 20e is in the first
• the electronics unit 20e evaluates a value of a parameter characterizing the router 16e or a plurality of the router 16e
• One or more of the parameters can be measured and evaluated. If an actual value of one of the parameters deviates in an inadmissible way from the latter
• Desired value in particular a drive signal for a voltage of electronically commutated electric motor 12e selected such that a
• Power output is reduced to the electronically commutated electric motor 12e.
• the electronically commutated electric motor 12e is an internal rotor motor.
• the electronically commutated electric motor 12e may be the electronically commutated electric motor shown in FIG.
• the output shaft 32e is rotatably received on its side facing the tool in a first bearing 88e and rotatably received on its side facing away from the tool in a second bearing 89e.
• the rechargeable battery 14 is connected to the first housing part 30e.
• a large part of a battery length l B is integrated into the first housing part 30e.
• the insertion direction of the rechargeable battery 14 extends along a y-direction of the router 16e.
• the battery voltage is in a range between 3.6 and 42V
• the battery voltage is preferably 10.8 V.
• the values of the battery voltage do not take into account possible battery voltage fluctuations.
• An actuator is intended to provide a speed and / or an operating mode, such as an ecom mode or a boost mode.
• the speed of the en router 16e according to the invention is from 8000 to 35,000 min " ⁇ particularly 10000-25000 ⁇ min. Preferably, the rotational speed of 20000 min -1.
• the router 16e is operable in an automatic mode.
• automatic mode the speed is automatically adjusted depending on a tool and / or application specific parameter.
• a machining tool and / or application-specific parameter is, for example, a feed rate, a diameter and / or a geometric dimension of the machining tool or a material of a machining workpiece.
• the illumination device 56e is arranged on a second housing part 34e of the router 16e.
• Lighting device 56e can also be arranged on the first housing part 30e.
• the lighting device 56e may also be on
• the lighting device 56e may include
• the lighting device 56e may include both a single LED and multiple LEDs.
• the LEDs can be provided in various designs and sizes.
• the illumination device 56e can also be embodied as a punctiform light source. But it is also conceivable that the
• Lighting device 56e is designed as a projection device.
• the lighting device 56e can have lighting elements which have different shapes on the first housing part 30e and / or on the second
• Housing part 34e may be arranged.
• the fan 52e is mounted on the output shaft 32e and disposed between the electronically commutated electric motor 12e and the tool spindle 102e. But it is also conceivable that the fan 52e is not on the
• Output shaft 32 e is mounted, but is connected via elements such as belts or gears to the output shaft 32 e. It is equally conceivable that other cooling systems such as Peltier elements, heat sinks, additional actuators with air guide elements or the like are used.
• FIG. 15 shows a hand-held power tool 16f designed as an electric scraper 16f for the scraping processing of surfaces.
• the electric scraper 16f has an electronically commutated electric motor 12f arranged in the first housing part 30f, which is intended to drive the machining tool 25f.
• the machining tool 25f may be a scraper, spatula, knife or the like.
• the electronically commutated electric motor 12f is with an output shaft 32f connected. The output shaft 32f enters
• Eccentric element 94f On the eccentric 94f, as shown in Figure 15a, a ball bearing 104f is mounted. An end of the eccentric element 94f facing the machining tool 25f engages in a passage opening 106f of a driving element 108f.
• a disk HOf and a spring element 112f are arranged between the carrier element 108f and the ball bearing 104f.
• a shutter 114f closes a lower opening 116f of the first housing 30f.
• the processing tool 25f of the electric doctor 16f can be removed.
• the entrainment element 108f engages with a nose 118f in a recess 120f of a clamping end of a shaft 122f of the machining tool 25f.
• the eccentric element 94f revolves about its axis of rotation, followed by the carrier element 108f.
• the machining tool 25f is guided in a longitudinal guide 124f.
• the longitudinal guide 124f is formed so as to surround the shank 122f of the machining tool 25f.
• the longitudinal guide 124f is provided with a continuous, rectangular guide slot 126f. Through the guide slot 126f, the shaft 122f of the
• a sealing member 128f closes a front opening of the first housing part 30f.
• the shaft 122f of the machining tool 25f passes through the front opening of the first housing part 30f.
• the spring element 112f, the disc HOf, the carrier element 108f, the closure element 114f, the processing tool 25f, the longitudinal guide 124f and the sealing element 128f are shown in an exploded view in FIG. 15a.
• the electronically commutated electric motor 12f is an internal rotor motor.
• the electronically commutated electric motor 12f may be the electronically commutated electric motor shown in FIG.
• the rechargeable battery 14 is connected to the second housing part 34f.
• a large part of a battery length l B is integrated into the second housing part 34 f and forms with this a common axis which is coaxial with the insertion direction of the rechargeable battery 14.
• the battery voltage is in a range between 3.6 and 42V
• the battery voltage is preferably 10.8 V.
• the values of the battery voltage do not take into account possible battery voltage fluctuations.
• the second housing part 34f serves a user of the electric scraper 16f as a handle or is designed as a handle.
• the fan 52f is mounted on the output shaft 32f and disposed between the electronically commutated electric motor 12f and the cam member 94f. But it is also conceivable that the fan 52f not on the
• Output shaft 32f is attached, but is connected via elements such as belts or gears to the output shaft 32f. It is equally conceivable that other cooling systems such as Peltier elements, heat sinks, additional actuators with air guide elements or the like are used.
• FIG. 15b shows an embodiment of electric scraper 16f with a device 130f for adjusting and / or determining a height h.
• the device 130f is disposed on the first housing part 34f.
• the height h here is the distance between a working end 132f of the machining tool 25f and an imaginary extension line which runs along a lower housing wall 134f of the first housing part 30f in the x direction of the electric doctor 16f.
• the machining tool 25f is guided and fixed with respect to the height h, so that the machining tool 25f can penetrate into a working material limited to a predetermined depth of cut.
• the device 130f comprises at least a first height adjustment means 136f and a second one
• Height adjustment means 138f The height adjustment means 136f, 138f are with help at least one height-adjustable fastening means 140f adjustable and fixable.
• the first height adjustment means 136f and the second height adjustment means 138f are interconnected via an axis 142f.
• a reading unit 144f serves to indicate to the operator of the electric doctor 16f the depth of cut.
• the portable power tool 16g is designed as a jigsaw 16g.
• the handheld power tool 16h is designed as a circular saw 16h.
• the portable power tool 16i is designed as a riveting tool 16i.
• the portable power tool 16j is designed as roller scooter 16j.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Power Engineering (AREA)
• General Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• Chemical & Material Sciences (AREA)
• Portable Power Tools In General (AREA)
• Sawing (AREA)
• Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
• Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
• Charge And Discharge Circuits For Batteries Or The Like (AREA)
• Harvester Elements (AREA)

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• 2014
  • 2014-06-10 DE DE102014211046.7A patent/DE102014211046A1/de active Pending
• 2015
  • 2015-04-07 KR KR1020167034574A patent/KR102392850B1/ko active IP Right Grant
  • 2015-04-07 CN CN201580031114.5A patent/CN106715053B/zh active Active
  • 2015-04-07 JP JP2016571276A patent/JP6356269B2/ja active Active
  • 2015-04-07 EP EP15713777.9A patent/EP3154747A1/de active Pending
  • 2015-04-07 EP EP23166476.4A patent/EP4230354A1/de active Pending
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