WO2022247813A1 - 电动工具及其控制方法 - Google Patents
电动工具及其控制方法 Download PDFInfo
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- WO2022247813A1 WO2022247813A1 PCT/CN2022/094599 CN2022094599W WO2022247813A1 WO 2022247813 A1 WO2022247813 A1 WO 2022247813A1 CN 2022094599 W CN2022094599 W CN 2022094599W WO 2022247813 A1 WO2022247813 A1 WO 2022247813A1
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- electric tool
- output head
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- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000001514 detection method Methods 0.000 claims abstract description 221
- 230000004044 response Effects 0.000 claims abstract description 52
- 230000005540 biological transmission Effects 0.000 claims description 43
- 238000005553 drilling Methods 0.000 claims description 42
- 230000007246 mechanism Effects 0.000 claims description 31
- 230000008859 change Effects 0.000 claims description 19
- 230000013011 mating Effects 0.000 claims description 5
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Classifications
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- 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
- B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/02—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
-
- 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
- B25F1/00—Combination or multi-purpose hand tools
-
- 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
- B25F1/00—Combination or multi-purpose hand tools
- B25F1/02—Combination or multi-purpose hand tools with interchangeable or adjustable tool elements
- B25F1/04—Combination or multi-purpose hand tools with interchangeable or adjustable tool elements wherein the elements are brought into working positions by a pivoting or sliding movement
-
- 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
Definitions
- the invention relates to the technical field of electric tools, in particular to an electric tool and a control method thereof.
- Double-head power tools or multi-head power tools are widely used in machinery, construction and other fields. Since the power tools include at least two output heads, different output heads can be used to achieve different functions without changing the tool body.
- the output head realizes the drilling function
- the other output head realizes the screwdriver function.
- the general operation process is that when the drilling function is needed, adjust the output head corresponding to the drilling function to the working position, and then replace the drilling accessories for it; when the screwdriver function is needed, set the screwdriver function Adjust the corresponding output head to the working position, and then replace the screwdriver working accessories for it.
- the above method is cumbersome. Once the output head at the working position does not correspond to the required working mode, it is often necessary to frequently replace the working accessories or switch the output head, which is inconvenient to operate and low in efficiency.
- a power tool comprising:
- At least two output heads which can be selectively located in the working position or the non-working position respectively;
- an output head detection component capable of detecting the output head at the working position and generating a detection signal, the detection signal being associated with the working mode of the output head
- a function switching unit capable of generating a mode switching signal for instructing switching of the working mode of the output head at the working position in response to an external trigger
- a controller connected to the output head detection component and the function switching unit, can switch the working mode of the output head at the working position in response to the mode switching signal, and can correlate the detection signal with the switched working mode couplet.
- the electric tool also includes:
- the output head switching unit is connected to each of the output heads respectively, and switches the output head at the working position in response to external triggers to change the detection signal of the output head detection component.
- the controller can respond to the detection signal Change, switch the working mode of the output head at the working position.
- the output head detection component includes a detection element, and the detection element includes a Hall sensor, a light sensor or a proximity sensor.
- the function switching unit can also generate a torque switching signal for instructing to switch the working torque of the output head at the working position in response to an external trigger, and the controller can respond to the torque switching Signal to switch the working torque of the output head at the working position.
- the function switching unit includes a first switching area and a second switching area
- the working mode of the output head includes the first mode and the second mode
- the first switching area and the second switching area correspond to the first mode and the second mode, respectively.
- the first switching area includes a first key, and the first key can generate a mode switching signal in response to an external trigger, so that the working mode of the output head at the working position can be switched to the first mode ;
- the second switching area includes a second key, and the second key can generate a mode switching signal in response to an external trigger, so that the working mode of the output head at the working position can be switched to the second mode.
- the first button can also generate a torque switching signal in response to an external trigger, so that the output head at the working position can change the working torque.
- the function switching unit includes a display area for displaying the current torque.
- the function switching unit further includes an indicator light corresponding to each working mode, and the indicator light is used to indicate the working mode of the output head at the current working position.
- the pre-stored work-related state is read, and the work-related state is used to characterize the relationship between the detection signal and the work mode.
- the controller also obtains the current detection signal and the working mode of the output head at the working position in response to the shutdown of the electric tool, and stores the working association state, which is used to characterize the association between the detection signal and the working mode relation.
- the controller when the controller detects that the working state parameters of the electric tool meet the preset value, it judges that the electric tool is stopped, and the working state parameters include: voltage, current, temperature, motor speed, motor At least one of the stop durations.
- the working modes include screwdriver mode and drill mode.
- the detection signal is associated with the working mode of the output head, and when different output heads are at the working position, the corresponding detection signals are different;
- the working mode of the output head at the working position is switched, and the detection signal is associated with the switched working mode.
- control method also includes:
- the working mode of the output head at the working position is switched, and the detection signal is associated with the switched working mode, and the working association state is updated.
- the method further includes: controlling an indicator light to be turned on to indicate the working mode of the output head at the working position.
- the method further includes: when it is judged that the electric tool is stopped, determining the current detection signal and the working mode of the output head at the working position; and storing the working related state.
- the detection signal includes a Hall signal, a light signal or a proximity signal.
- the detection signal includes a first signal and a second signal
- the working mode includes a first mode and a second mode
- the work-related state includes: the first signal corresponds to the first mode, and the second signal corresponds to the second mode; or, the first signal corresponds to the second mode, and the second signal corresponding to the first mode.
- the method further includes that the first mode is a screwdriver mode, and the second mode is a drill mode.
- the method also includes:
- the control switches the working torque of the output head at the working position.
- the method also includes:
- the control display area is turned on to indicate the working torque of the output head at the current working position.
- the method further includes: when it is judged that the electric tool is stopped, storing the working torque in the first mode.
- the method also includes:
- the working state parameter When the working state parameter satisfies the preset condition, it is judged that the electric tool is stopped, and the working state parameter includes at least one of voltage, current, temperature, motor speed, and motor stop duration.
- the above-mentioned electric tool detects the output head at the working position through the output head detection component and generates a corresponding detection signal, and generates a mode switching signal through the function switching unit in response to external triggers, wherein the mode switching signal is used to indicate the output of the working position.
- the controller switches the working mode of the output head at the working position in response to the mode switching signal, and can correlate the detection signal corresponding to the output head at the working position with the working mode after switching. That is, the same output head can have multiple working modes. When the same output head is in the working position, its working mode can be switched by the function switching unit, and the switched working mode is associated with the current detection signal.
- the switched working mode is matched with the output head at the current working position. Therefore, the switching of the working mode can be realized without switching the output head and the working position can be ensured.
- the output head accurately corresponds to the required working mode, which simplifies the operation and effectively improves the efficiency and convenience of the electric tool.
- the present invention also provides an electric tool, which includes:
- the casing includes a main body casing extending along the longitudinal axis, and a handle casing at an angle to the main body casing, and the part opposite to the connecting part of the main body casing and the handle casing is defined as the top of the main body casing;
- a motor arranged in the housing of the host
- the switch trigger is arranged on the handle housing and is used to control the start and stop of the motor
- a working assembly includes a first output head and a second output head, and the first output head and the second output head are alternatively mated with the output shaft;
- a control device includes a function switching unit, a controller electrically connected to the function switching unit; the function switching unit is arranged on the top, and can generate a mode switching signal in response to an external trigger, the The controller switches the working mode of the output head matched with the output shaft according to the received mode switching signal, so as to set the electric tool as a drill mode or a screwdriver mode; when the electric tool is in the drill mode, The output head matched with the output shaft outputs a constant torque, and when the electric tool is in the screwdriver mode, the output torque of the output head matched with the output shaft can be adjusted within a preset range.
- an operation button is provided at the connecting part of the main body casing and the handle casing, and the switch trigger is arranged adjacent to the operation button; The position of the housing is locked, so that the hand of the operator holding the handle housing can selectively trigger the operation button or the trigger switch.
- the electric tool includes a gear transmission mechanism arranged between the motor and the output shaft, and is movable between a first position and a second position relative to the main body casing, so that A gear adjusting member for adjusting different rotational speeds of the output shaft, the gear adjusting member is located at the top and close to the gear transmission mechanism.
- the function switching unit includes at least one button, and the button is used to operatively switch the working mode of the electric tool between a drill mode and a screwdriver mode.
- the electric tool further includes a torque adjusting member electrically connected to the controller, and the torque adjusting member is used to operatively adjust the torque matched with the output shaft in the screwdriver mode.
- the output torque of the output head is used to operatively adjust the torque matched with the output shaft in the screwdriver mode.
- the electric tool further includes a torque regulator electrically connected to the controller;
- the function switching unit includes a first button, and the first button is used to operatively switch the electric tool to The working mode of the tool is switched to the screwdriver mode; in the screwdriver mode, the first button can also be used as the torque regulator for adjusting the output torque of the output head connected to the output shaft.
- the function switching unit further includes a second button, and the second button is used to operably switch the working mode of the electric tool to the drilling mode; the first button is the same as the second button Two buttons are arranged side by side.
- the first button and the second button are respectively provided with logos or patterns representing working modes.
- the electric tool further includes a first working indicator light corresponding to the first button, and a second working indicator light corresponding to the second button, when the electric tool is in the drilling mode, the first working indicator light is on ; When the power tool is in the screwdriver mode, the second working indicator light is on.
- the electric tool further includes a display area electrically connected to the controller, and the display area is used to display the set torque of the output head coupled with the output shaft in the screwdriver mode.
- the above-mentioned electric tool generates a mode switching signal in response to an external trigger through the function switching unit, wherein the mode switching signal is used to instruct switching of the working mode of the output head at the working position, and the controller switches the output head at the working position in response to the mode switching signal.
- the working mode of the head When switching to the drill mode, the output head at the working position, that is, the output head matched with the output shaft outputs a constant torque; when switching to the screwdriver mode, the output torque of the output head matched with the output shaft is at the preset adjustable within the range.
- the function switching unit may include buttons for switching working modes, and may also include torque regulators for adjusting torque, or may include buttons integrating switching working modes and torque adjustment, so that the function switching interface is more convenient for user operation and improves the user experience. convenience.
- the present invention also provides an electric tool, characterized in that the electric tool includes:
- the motor is arranged in the housing;
- the motor drives the output shaft to rotate
- a working assembly comprising at least two output heads selectively in a working position mated with the output shaft;
- a control device includes a function switching unit and a controller electrically connected to the function switching unit; corresponding to any output head in the working position, the function switching unit is operable to make the electric tool switch between drill mode and screwdriver mode; the function switching unit can respond to external triggers and generate a mode switching signal for instructing to switch the working mode of the output head at the working position, and the controller responds to the The mode switching signal sets the electric tool to drill mode or screwdriver mode; when the electric tool is in the drill mode, the output head in the working position outputs a constant torque; when the electric tool is in the screwdriver mode, it is in the The output torque of the output head in the working position can be adjusted within a preset range.
- the electric tool further includes a torque regulator electrically connected to the controller.
- the torque regulator When the electric tool switches to the screwdriver mode, the torque regulator is activated, and the torque regulator The component is operable to set the output torque of the output head within a preset range.
- the electric tool further includes a display area electrically connected to the torque adjustment member, and the display area is used to display the output torque set by the torque adjustment member.
- the electric tool includes a gear transmission mechanism arranged between the motor and the output shaft, and a gear adjustment member that can move between a first position and a second position relative to the housing; when the When the electric tool is in the drilling mode and the gear adjustment member is in the first position, the gear transmission mechanism has a first transmission ratio, and the output head in the working position can output a first constant speed; when the electric tool is in the drilling mode, And when the gear adjustment member is in the second position, the gear transmission mechanism has a second transmission ratio, and the output head in the working position can output a second constant speed.
- control device further includes a detection device for detecting the gear adjustment member, the detection device is electrically connected to the controller, and when the gear adjustment member is in the first position, the detection device sends out the first position. A detection signal. When the gear adjustment member is in the second position, the detection device sends a second detection signal, and the first detection signal is different from the second detection signal.
- the controller when the electric tool is in the drilling mode, controls the motor to output a first constant torque according to the first detection signal, and controls the motor to output a constant torque according to the second detection signal.
- the second constant torque the first constant torque is different from the second constant torque;
- the controller controls the output torque of the motor according to the first detection signal
- a preset range is adjustable.
- the output torque of the motor is controlled to be adjustable within the second preset range.
- the first preset range is different from the second preset range.
- the electric tool further includes a detection element electrically connected to the controller, and the detection element includes a first detection element disposed on the casing, and a second detection element disposed on the working assembly.
- the detection element includes a first detection element disposed on the casing, and a second detection element disposed on the working assembly.
- the working assembly is rotatably arranged relative to the casing, when one of the output heads rotates to a preset position relative to the casing, the first detection element interacts with the second detection element and generates an electrical signal,
- the controller matches a preset working mode for the electric tool according to the electrical signal.
- the detection element includes a Hall sensor, a light sensor or a proximity sensor.
- the detection element is set as a non-contact switch
- the first detection element is one of a magnet and a Hall element
- the second detection element is another one of a magnet and a Hall element
- the Hall element and The magnet generates a first induction signal
- the controller controls the electric tool to be in one of the drill mode and the screwdriver mode
- the Hall element and the magnet A second sensing signal is generated, and the controller controls the electric tool to be in the other one of the drill mode and the screwdriver mode.
- the function switching unit includes a signal sensor and at least one trigger, the signal sensor is electrically connected to the controller, and the trigger is operable to trigger the signal sensor to A mode switching signal is transmitted to the control board.
- control device further includes an indicator
- the indicator is electrically connected to the controller, the indicator is used to indicate the current working mode of the electric tool, and the indicator
- the parts include a first indicating part and a second indicating part, when the electric tool is in the drill mode, the first indicating part is in the working state, and when the electric tool is in the screwdriver mode, the second indicating part is in the working state .
- Fig. 1 is a schematic structural diagram of an electric tool provided by an embodiment of the present application.
- Fig. 2a is a cross-sectional view of the structure of the power tool when mating described in one embodiment
- Fig. 2b is a cross-sectional view of the structure of the power tool when it is disengaged in one embodiment
- Fig. 2c is an enlarged schematic diagram of a partial structure of the electric tool described in Fig. 2a;
- Fig. 2d is an enlarged schematic diagram of a partial structure of the electric tool described in Fig. 2b;
- Fig. 3 is a function switching module diagram of an electric tool provided by an embodiment of the present application.
- Fig. 4 is a schematic structural diagram of an electric tool provided by an embodiment of the present application.
- Fig. 5 is a partial structural schematic diagram of an electric tool provided by an embodiment of the present application.
- Figure 6 is an enlarged view of the z region in Figure 5;
- Fig. 7 is a flowchart of a control method of an electric tool provided by an embodiment of the present application.
- Fig. 8 is a flowchart of a specific example of a method for controlling an electric tool provided by an embodiment of the present application.
- Fig. 9 is a schematic top view of the control interface of the electric tool provided by another embodiment of the present application.
- Fig. 10 is a schematic diagram when the power tool in Fig. 9 is switched to the drilling mode
- Fig. 11 is a schematic diagram of the power tool in Fig. 9 when switched to the screwdriver mode;
- Fig. 12 is a schematic top view of a control interface of an electric tool provided by another embodiment of the present application.
- Fig. 13 is an exploded schematic diagram of the reducer structure described in one embodiment
- Fig. 14 is a schematic cross-sectional view of the structure of the reducer described in one embodiment.
- first and second are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as “first” and “second” may explicitly or implicitly include at least one of these features. In the description of the present invention, “plurality” means at least two, such as two, three, etc., unless otherwise specifically defined.
- double-head electric tools or multi-head electric tools have been widely used.
- double-head electric tools as an example, one output head is used to realize the drilling function, and the other output head is used to realize the screwdriver function. Switch the output head corresponding to the working mode to the working position, and then replace the corresponding working accessories for the output head, thus completing the entire switching process.
- the above switching process is relatively complicated. Once the output head at the working position does not correspond to the required working mode, it is often necessary to frequently replace the working accessories or switch the output head.
- Scenario 1 After the working accessory is installed, it is found that the working mode of the working accessory is inconsistent with the current output head, and it cannot work normally. Only by reinstalling the working accessory can it work normally;
- Scenario 3 It is necessary to switch between different working modes. It is necessary to switch the output head at the working position first to realize the switching of the working mode, and then install the required working accessories on the output head at the working position, so as to realize the requirement. The operation is cumbersome.
- an embodiment of the present application provides an electric tool and a control method thereof.
- the electric tool 10 includes a main body housing 12 and a handle housing 14 arranged at an angle to the main body housing, a motor 15 is arranged in the main body housing 12, and the main body housing 12 Extending longitudinally and having a longitudinal axis X, the handle housing 14 and the host housing 12 form approximately a 90-degree right angle or an obtuse angle greater than 90 degrees and less than 120 degrees; the end of the handle housing 14 is provided with a battery pack mounting seat 141, Used to detachably connect the rechargeable battery pack 30 .
- the motor 15 drives the output shaft 130 to rotate.
- the working assembly 120 includes at least two output heads 100 and an output head switch.
- the output head 100 can alternatively be in a working position mated with the output shaft 130 , and can be locked or unlocked relative to the main body casing 12 .
- the selected output head can reach the working position by rotating the working assembly 120 at the unlocked position around the pivot axis Y relative to the main body casing 12, that is, the output head 100 can be selectively positioned at the working position matched with the output shaft 130. position, or in a non-working position disengaged from the output shaft 130; the output head 100 is alternatively mated with the output shaft 130, and the output shaft 130 can be connected to different types of working parts according to requirements, such as drill bits and bits.
- the trigger switch 18 is disposed on the handle housing 14 close to the main body housing 12 and is electrically connected to the controller 400 disposed in the handle housing 14 .
- the trigger switch 18 can be used to activate the controller 400 and/or start the motor 15 .
- the main body housing 12 and the handle housing 14 are provided with an operation button 21 at the connecting part, and the operation button 21 is arranged adjacent to the position of the trigger switch 18, so that the hand of the operator holding the handle housing 14 can selectively trigger the operation knob 21 or the trigger.
- the switch 18 and the operation button 21 are used to unlock the position of the working assembly 120 relative to the main body casing 12 .
- the schematic movement positions of the trigger switch 18 and the operation button 21 are respectively shown by solid lines and dotted lines, that is to say, the movement directions of the trigger switch 18 and the operation button 21 are consistent with the longitudinal axis X direction of the main body housing 12, In line with the user's operating habits; specifically, the trigger switch 18 starts the motor 15 to move away from the working assembly 120 as shown by the arrow in the figure, and the operation button 21 releases the locking of the working assembly 120 relative to the main body housing 12 and moves away from the working assembly 120.
- Direction translation movement is respectively shown by solid lines and dotted lines, that is to say, the movement directions of the trigger switch 18 and the operation button 21 are consistent with the longitudinal axis X direction of the main body housing 12, In line with the user's operating habits; specifically, the trigger switch 18 starts the motor 15 to move away from the working assembly 120 as shown by the arrow in the figure, and the operation button 21 releases the locking of the working assembly 120 relative to the main body housing 12 and moves away from the working assembly 120.
- Direction translation movement is
- the power tool 10 includes a gear transmission mechanism 155 arranged between the motor 15 and the output shaft 130, and a high and low speed gear that can move between the first position and the second position relative to the main body housing 12.
- the gear adjustment part 150 is used to change the transmission mode of the gear in the gear transmission mechanism 155 to change the reduction ratio, thereby adjusting the different rotational speeds of the output shaft.
- the high and low speed gear adjustment part 150 is located at the top 121 of the main engine casing and is close to the gear transmission mechanism 155.
- the illuminating lamp 160 is set as an LED, which is lit when the trigger switch 18 powers on the motor 15, and will last as the trigger switch 18 is powered off. off.
- the electric tool further includes an output head detection assembly 200 , a function switching unit 300 and a controller 400 .
- the output head detection component 200 is arranged at a preset position, and is used to detect the output head 100 at the working position and generate a detection signal.
- the detection signal generated by the output head detection component 200 will vary with the position of the output head 100. For example, when the output head 100 at the working position is the output head a, the detection signal is A; If the output head 100 is the output head b, then the detection signal is B. Based on the detection signal, it can be deduced whether the output head 100 currently at the working position is the output head a or the output head b.
- the part of the main body casing 12 opposite to the connecting part of the handle casing 14 is defined as the top 121 of the main body casing 12 , and the function switching unit 300 is disposed on the top 121 and close to the working assembly 120 .
- the function switching unit 300 is capable of generating a mode switching signal for instructing to switch the working mode of the output head 100 at the working position in response to an external trigger.
- the function switching unit 300 can be triggered by a user. By triggering the function switching unit 300 , a corresponding mode switching signal can be generated and sent to the controller 400 .
- the power tool has two working modes in total.
- the output head 100 currently in the working position is working mode 1.
- the function switching unit 300 is triggered, the working mode 1 can be switched to working mode 2, that is, the control is currently in working mode.
- the output head 100 at position enters working mode 2. It is worth noting that at this time, there is no need to adjust the output head 100 to switch the working mode in the traditional way, but directly trigger the function switching unit 300 to realize the switching of the working mode of the output head 100 at the current working position.
- the controller 400 is connected to the output head detection component 200 and the function switching unit 300, and can switch the working mode of the output head 100 at the working position in response to the mode switching signal, and can correlate the detection signal with the switched working mode. Specifically, after the controller 400 receives the mode switching signal generated by the function switching unit 300, it correlates the detection signal currently detected by the output head detection component 200 with the working mode after switching, because the detection signal can represent the current working mode. The output head 100 at the position, therefore, the controller 400 actually corresponds the output head 100 at the current working position to the working mode after switching. Assume that the output head 100 at the current working position is output head a, and its initial working mode is working mode 1. When the user triggers the function switching unit 300 to switch working mode 1 to working mode 2, the controller 400 will output Head a is associated with work mode 2, output head a can work in work mode 2.
- the operable input mode of the function switching unit 300 may be a mechanical input or a touch screen input.
- the operator can input a corresponding mode switching signal by manually pressing, sliding or rotating to trigger the controller 400 to perform control output.
- the above-mentioned electric tool detects the output head 100 at the working position through the output head detection component 200 and generates a corresponding detection signal, and generates a mode switching signal through the function switching unit 300 in response to an external trigger, wherein the mode switching signal is used to indicate the The working mode of the output head 100 at the working position is switched, and the controller 400 responds to the mode switching signal, switches the working mode of the output head 100 at the working position, and correlates the current detection signal with the switched working mode. That is, the same output head 100 can have multiple working modes.
- the same output head 100 When the same output head 100 is at the working position, its working mode can be switched by the function switching unit 300, and the switched working mode and the current detection signal Correlation, because the detection signal corresponds to the position of the output head 100 one by one, that is, the switched working mode is associated and matched with the output head 100 at the current working position, thus, the switching of the working mode can be realized without switching the output head 100 Moreover, it is ensured that the output head 100 at the working position accurately corresponds to the required working mode, which simplifies the operation and effectively improves the use efficiency and convenience of the electric tool.
- the electric tool further includes an output head switching unit 500 .
- the output head switching unit 500 is connected to each output head 100 respectively, and in response to an external trigger, switches the output head 100 at the working position to change the detection signal of the output head detection component, and the controller can switch the working position in response to the change of the detection signal.
- the working mode of the output header at the position.
- the output head switching unit 500 is connected to the body of the electric tool and can rotate relative to the body of the electric tool.
- the output head 100 and the output head switching unit 500 are relatively fixedly connected. After the body is unlocked, the output head can be controlled to rotate relative to the body; or the output head can be automatically rotated relative to the body by controlling the motor to drive the output head by operating a specific mechanism.
- the output head switching unit 500 rotates relative to the body, the output head 100 also rotates accordingly, and then the output head 100 at the working position can be switched.
- the detection signal of the output head detection component will change accordingly, and the controller will control the working mode to change accordingly according to the change of the detection signal.
- the output head 100 at the current working position is The corresponding working mode of the output head a is working mode 1.
- the detection signal of the output head detection component 200 changes.
- the controller controls the working mode of the output head at the working position to switch from working mode 1 to working mode 2.
- the output head switching unit 500 and the function switching unit 300 can be used in cooperation.
- the initial state is that the output head a is at the working position, and its working mode is working mode 1, that is, the output head a-working mode 1; 1, the output head b can be switched at the working position by rotating the output head switching unit 500,
- the function switching unit 300 can also be triggered to switch the working mode of the output head a to the working mode 2, that is, the output head a-working mode 2; 3, on the basis of 2, rotate the output head switching unit 500, switch the output head b to the working position, at this time, the detection signal changes, and switch the working mode to working mode 1 , that is, output head b-working mode 1; 4, trigger the function switching unit 300 on the basis of 3, and switch the working mode of output head b to working mode 2, that is, output head b-working mode 2;
- the working mode of each output head is not unique, and the output head can be associated with multiple working modes.
- the output head at the working position and the work of the output head at the working position can be quickly and freely switched as needed model.
- the output head detection component includes a detection element
- the detection element may include a Hall sensor, a light sensor or a proximity sensor.
- the sensor can quickly and accurately detect the position change of the output head, and generate a corresponding detection signal.
- the output head detection assembly 200 includes matching first detection elements 210 and second detection elements 220.
- the first detection element 210 is relative to the second detection element.
- the detection element 220 has different degrees of position changes, and the second detection element 220 generates different detection signals according to the different degrees of position changes of the first detection element 210 .
- the positional relationship between the first detection element 210 and each output head 100 may be relatively fixed, that is, when the position of the output head 100 changes, the position of the first detection element 210 changes accordingly, while the second detection element
- the position of 220 is fixed, that is, the position of the first detection element 210 changes relative to the second detection element 220, when the first detection element 210 is in a different position, the second detection element 220 can sense different signals, thus , the position of the output head 100 can be detected through the cooperation of the first detection element 210 and the second detection element 220 .
- the first detection element 210 may be disposed on the output head switching unit 500
- the second detection element 220 may be disposed on the body close to the output head switching unit 500 .
- the positional relationship between the second detection element 220 and each output head 100 may be relatively fixed, that is, when the position of the output head 100 changes, the position of the second detection element 220 changes accordingly, while the first detection element
- the position of 210 is fixed, that is, the position of the first detection element 210 changes relative to the second detection element 220, when the second detection element 220 is in a different position, the second detection element 220 can sense different signals, and then detect out the position of the output head 100.
- the second detection element 220 may be disposed on the output head switching unit 500
- the first detection element 210 may be disposed on the body close to the output head switching unit 500 .
- the first detection element 210 includes a magnet
- the second detection element 220 includes a Hall sensor or a proximity sensor.
- the signal detected by the Hall sensor or the proximity sensor is different.
- the position detection process is simplified by using the Hall sensor/proximity sensor with the magnet, and the structure is relatively simple. Easy to implement.
- the detection signal of the Hall sensor/proximity sensor includes low level and high level, for example, when the level is low, the output head a is at the working position, and when the level is high, the output head b is at the working position, then there are two associations Mode: High level corresponds to working mode 1, low level corresponds to working mode 2, or low level corresponds to working mode 1, and high level corresponds to working mode 2.
- the first detection element 210 includes a light source, which can emit light beams without interruption, and the light source includes, for example, semiconductor light sources, light-emitting diodes, laser diodes, infrared emitting diodes, etc.; the second detection element 220 includes a light sensor, which can Receive and detect light. When the light source and the light sensor are in different positions, the light sensor can detect different signals according to whether it receives light or the intensity of the received light, thereby simply realizing position detection.
- the function switching unit can also generate a torque switching signal for instructing to switch the working torque of the output head at the working position in response to an external trigger, and the controller can switch the output head at the working position in response to the torque switching signal working torque.
- the working torque of the output head at the working position can be switched by the function switching unit.
- the user can trigger the function switching unit according to preset rules, and then generate a torque switching signal corresponding to a specific torque value.
- the controller detects the corresponding torque switching signal, the working torque of the output head at the working position can be adjusted. to the corresponding torque value.
- the function switching unit includes a first switching area 310 and a second switching area 320
- the working mode of the output head includes the first mode and the second mode
- the first switching area 310 and the second switching area 320 respectively correspond to the first switching area 310 and the second switching area 320.
- first mode and second mode by triggering the first switching area 310 , the output head at the working position can be adjusted to the first mode, and by triggering the second switching area 320 , the output head at the working position can be adjusted to the second mode.
- Each switching area corresponds to each working mode, which is convenient for operation and less prone to errors.
- the function switching unit 300 includes trigger buttons corresponding to each working mode.
- the first switching area 310 includes a first button 311, and the first button 311 can generate a mode switching signal in response to an external trigger for the working position.
- the working mode of the output head is switched to the first mode
- the second switching area 320 includes a second button 321.
- the second button 321 can generate a mode switching signal in response to an external trigger, so that the working mode of the output head at the working position is switched to the first mode.
- Two modes are possible.
- working mode 1 has a corresponding trigger button
- working mode 2 has a corresponding trigger button. If you need to switch the working mode of the output head 100 at the current working position to working mode 1 or 2, you only need to trigger the corresponding button of working mode 1 or 2. Just trigger the button.
- only one trigger button can be set, and the switching of different working modes can be realized by performing different trigger operations on the trigger button. Corresponding to different working modes, etc. There are many ways to set the trigger button, and this embodiment only lists the above-mentioned ones, and other similar implementation ways are also applicable, and they are not listed here one by one.
- the first button 311 can also generate a torque switching signal in response to an external trigger, so that the output head at the working position can change the working torque. That is, in the first mode, there is a need to set the torque of the output head, and by pressing the first button 311 , a torque switching signal can be generated, which is convenient for setting the torque.
- the output torque can be adjusted by clicking or long pressing the first button 311 .
- the first switching area 310 of the function switching unit 300 further includes a display area 330 for displaying the current torque value or torque gear.
- a digital tube 335 can be set in the display area 330 , and the current torque can be displayed through the digital tube 335 .
- the first switching area 310 and the second switching area 320 are arranged in sequence along the longitudinal axis of the main body casing, specifically, the first key 311, the second key 321 and the display area 330 Arranged linearly on the top of the host housing 12 .
- the fuselage is close to the front part of the output head 100, the radial dimension of the fuselage is smaller, the accessibility of the power tool is relatively better, and it is easier to enter a narrow space.
- the first button 311 and the second button of this embodiment 321 and the display area 330 are arranged side by side along the longitudinal axis of the main body casing, and this arrangement is suitable for the arrangement of the main body with good accessibility.
- the function switching unit in order to facilitate the user to determine the working mode of the output head 100 in the working position, and to accurately and quickly adjust the power tool to the required working mode, also includes a function corresponding to each working mode The indicator light is used to indicate the working mode of the output head 100 at the current working position.
- the indicator light can be implemented in various ways. Multiple indicator lights can be set in a preset area other than the switching area on the fuselage. Each indicator light corresponds to each work mode. When entering a certain work mode, control its The corresponding indicator lights are on; only one indicator light can be set, which can display different colors, each color corresponds to each working mode, and when entering a certain working mode, the indicator light is controlled to display the corresponding color. logos or patterns representing each working mode are arranged on the trigger button.
- the trigger button can be set as a membrane button, and the sensitivity and feel of the operation are better. It is also possible to set the surface of the trigger button to be transparent, and set an indicator light below it. When there are multiple trigger buttons, they correspond to each working mode.
- the indicator light below it is controlled to light up; When the indicator light is on, the corresponding logo or pattern representing the working mode will be lit.
- only one indicator light can be set under it, which can display different colors, and each color corresponds to each working mode. When entering a certain working mode, control the indicator to display the corresponding color.
- the indicator light may adopt an LED light.
- the first mode is a screwdriver mode
- the second mode is a drill mode
- the display area is used to display the output torque of the electric tool when the current working mode is the screwdriver mode.
- the output torque is adjustable, so when entering the screwdriver mode, the current output torque can be displayed in the display area so that the user can know the current torque.
- the output head at the working position when the working mode of the output head at the working position is the screwdriver mode, the output head at the working position can enter the drilling mode when the button corresponding to the drilling mode is triggered; when the working mode of the output head at the working position is the drilling mode , when the button corresponding to the drill mode or the button corresponding to the screwdriver mode is triggered, the output head at the working position can enter the screwdriver mode, that is, when the working mode of the output head at the working position is the drill mode, the button corresponding to the trigger drill mode has a cancel function. Drill mode functionality.
- the controller 400 also obtains the current detection signal and the working mode of the output head 100 at the working position in response to the shutdown of the electric tool, and stores the working correlation state, that is, the correlation between the detection signal and the working mode.
- the controller When the controller determines that the electric tool is stopped, the controller actively collects and stores the current state information, specifically, acquires the current detection signal and the working mode of the output head 100 at the working position, and correlates and stores them, thereby
- the last associated state of the output head 100 can be stored before the official power off, so that the stored associated state can be directly recalled after the next startup, and the status of the output head 100 can be known quickly, so as to accurately adjust the output head 100 or work
- the mode can be adjusted to suit the needs of the current operation.
- the controller can also store the value of the current torque while storing the work-related state, so that the output head can be quickly determined after the next power-on. torque information.
- the controller when it stores the work association status, it may store a set of association relationships, or may store multiple sets of association relationships.
- the detection signal may include a first signal and a second signal
- the working mode includes a first mode and a second mode
- the current detection signal is the first signal
- the working mode of the output head at the working position is the first mode, that is, the first mode A signal corresponds to the first mode
- a second signal corresponds to the second mode.
- the controller may only store a set of correlations between the first signal and the first mode, or a set of correlations between the second signal and the second mode, or store two sets of correlations at the same time.
- the controller can only store part of the association relationships, as long as the controller can infer the rest of the association relationships based on the stored partial association relationships.
- the purpose of this application can be achieved, thereby releasing the internal storage space of the controller and saving resources.
- the controller can determine that the electric tool is stopped when detecting that the working state parameters of the electric tool meet the preset conditions, and the working state parameters can include at least one of voltage, current, temperature, motor speed, and motor stop duration.
- the controller can judge whether the electric tool is stopped, because when the electric tool is in the stop state, some working state parameters will be relative There are obvious changes in the state, such as current and voltage drop, temperature drop, motor stop running, etc. Based on this, the controller can collect and analyze the above working state parameters, and then infer whether the electric tool is stopped.
- the controller is further configured to read a pre-stored work-related state after the electric tool is powered on.
- the controller detects that the electric tool is powered on, it can obtain the work-related state stored before the last power-off, and then accurately judge the state of the output head at the working position.
- the embodiment of the present application also provides a control method of an electric tool, and the electric tool includes at least two output heads 100 .
- the control method of the electric tool is applicable to the electric tools provided in the foregoing embodiments, and is also applicable to other electric tools with similar structures.
- control method of the electric tool includes the following steps:
- Step S200 Detect the output head 100 at the working position and generate a detection signal.
- the detection signal is associated with the working mode of the output head. When different output heads 100 are at the working position, the corresponding detection signals are different.
- Step S400 in response to an external trigger, generate a mode switch signal for instructing to switch the working mode of the output head 100 at the working position.
- Step S600 in response to the mode switch signal, switch the working mode of the output head 100 at the working position, and associate the detection signal with the switched working mode.
- control method of the electric tool provided in this embodiment belongs to the same inventive concept as the electric tool provided in the foregoing embodiments.
- the electric tool and the above steps please refer to the specific content in the foregoing embodiments, and details are not repeated here.
- the control method of the electric tool above detects the output head 100 at the working position and generates a corresponding detection signal, and generates a mode switching signal in response to an external trigger, wherein the mode switching signal is used to indicate the working mode of the output head 100 at the working position Switching is performed, and the working mode of the output head 100 at the working position is switched in response to the mode switching signal, and the current detection signal is correlated with the working mode after switching. That is, the same output head 100 can have multiple working modes. When the same output head 100 is at the working position, its working mode can be switched, and the switched working mode can be associated with the current detection signal.
- One-to-one correspondence between the signal and the position of the output head 100 that is, to realize the association and matching of the switched working mode with the output head 100 at the current working position, thus, the switching of the working mode can be realized without switching the output head 100 and the working position can be guaranteed.
- the output head 100 accurately corresponds to the required working mode, which simplifies the operation and effectively improves the use efficiency and convenience of the electric tool.
- control method of the electric tool further includes:
- the working mode of the output head 100 at the working position is switched, and the detection signal is associated with the switched working mode, and the working association status is updated.
- this embodiment invokes the pre-stored work association status between the detection signal and the output head 100 at the working position after detecting power-on, and then obtains the current By detecting the signal, the output head 100 at the current working position and its working mode can be determined. If a mode switching signal is detected during subsequent use, then the work association status is updated.
- control method of the electric tool further includes: controlling the indicator light to be turned on to indicate the working mode of the output head 100 at the working position.
- the output head 100 at the current working position and its working mode After power-on, the output head 100 at the current working position and its working mode, in this embodiment, after detecting the power-on, call the pre-stored detection signal and the work related state of the output head 100 at the working position, and then obtain the current detection signal , so that the output head 100 at the current working position and its working mode can be determined. If a mode switching signal is detected during subsequent use, then the work association status is updated.
- the detection signal includes a Hall signal, a light signal or a proximity signal
- the detection signal includes a first signal and a second signal
- the working mode includes a first mode and a second mode.
- the working correlation state between the detection signal and the working mode includes: the first signal corresponds to the first mode, and the second signal corresponds to the second mode; or, the first signal corresponds to the second mode, and the second signal corresponds to the first mode.
- the work-related state obtained after power-on is that the first signal corresponds to the first mode, and the second signal corresponds to the second mode, wherein the first signal corresponds to the output head a being in the working position, and the second signal corresponds to the output Head b is in working position. If the current detection signal is the first signal, then it can be determined that the output head a is currently in the working position and is in the first mode.
- the working mode of the output head 100 at the current working position is switched, and the switched working mode is associated with the current detection signal, and the step of updating the working association state includes:
- the working mode of the output head 100 at the current working position is controlled to enter the first mode, and the first mode is associated with the current detection signal.
- the working mode of the output head 100 at the current working position is controlled to enter the second mode, and the second mode is associated with the current detection signal.
- the output head 100 at the current working position can be The working mode is switched from the second mode to the first mode.
- the first mode may be a screwdriver mode
- the second mode may be a drill mode
- control method of the electric tool further includes:
- the working mode of the output head 100 at the current working position is the first mode
- the switching signal of the output head 100 is detected, the working mode of the output head 100 at the switched working position is switched to the second mode
- the working mode of the output head 100 at the current working position is the second mode
- the switching signal of the output head 100 is detected
- the working mode of the output head 100 at the switched working position is switched to the first mode
- the output head 100 at the working position and its working mode can also be switched by switching the output head 100 through the output head switching member 500 . Both methods can be used together.
- control method of the electric tool further includes:
- the working torque of the output head 100 at the working position is controlled to be switched.
- control method of the electric tool further includes: turning on the indicator light to indicate that the working mode of the output head 100 at the current working position The working mode of the output head 100.
- control method of the electric tool further includes: when it is determined that the working mode of the output head 100 at the current working position is the first mode, the control display area 330 is turned on to indicate the working torque of the output head at the current working position.
- control method of the electric tool further includes:
- control method of the electric tool further includes: when it is judged that the electric tool is stopped, storing the working torque in the first mode.
- control method of the electric tool further includes:
- Detect the working state parameters of the electric tool when the working state parameters meet the preset conditions, it is judged that the electric tool is stopped, and the working state parameters include at least one of voltage, current, temperature, motor speed, and motor stop time.
- Step 1 After the electric tool is powered on, read the relationship between the pre-stored detection signal and the working mode, and combine the current detection signal to determine whether the output head at the working position is in the screwdriver mode; if it is in the screwdriver mode, perform the steps 2. If it is drilling mode, go to step 3;
- Step 2 Light up the indicator light corresponding to the screwdriver mode, turn off the indicator light corresponding to the drilling mode, and at the same time, control the digital tube to display the pre-stored torque in the screwdriver mode;
- the display value range of the digital tube can be changed between 1-9; or, the digital tube displays a specific torque value, and the torque value can be adjusted by long pressing or short pressing the corresponding button.
- the output head at the working position can enter the drilling mode by clicking the button corresponding to the drilling mode or rotating the output head;
- Step 3 Turn on the indicator light corresponding to the drill mode, and turn off the indicator light and the digital tube corresponding to the screwdriver mode;
- the output head at the working position can enter the screwdriver mode by clicking the button corresponding to the screwdriver/drilling mode or rotating the output head;
- Step 4 After detecting that the motor has stopped for 15 seconds, obtain the working mode of the output head at the working position, and judge whether it is the screwdriver mode. If it is the screwdriver mode, obtain the current Hall signal, and judge whether the Hall signal is low. If If it is low level, store the relationship between screwdriver mode and low level; if it is high level, store the relationship between screwdriver mode and high level; if it is drilling mode, get the current Hall signal and judge Whether the Hall signal is low level, if it is low level, then store the drilling mode-low level correlation, if it is high level, then store the drilling mode-high level correlation.
- Step 5 After the correlation between the working mode and the detection signal is stored, the power is automatically cut off.
- Fig. 9 is a schematic diagram of a control interface of an electric tool according to another embodiment.
- the function switching unit 300' includes a first key 311' and a second key 321' arranged side by side along a transverse direction perpendicular to the longitudinal axis of the main body casing, and the first key 311 ' is provided with a pattern of a screwdriver head, and the second button 321' is provided with a pattern of a drill bit.
- first button 311' and the second button 321' are respectively provided with a first working indicator light corresponding to the first button 311' and a second working indicator light corresponding to the second button 321', wherein the first working indicator light and the second working indicator light are LED backlights.
- the electric tool when the first key 311' is pressed, the electric tool generates a mode switching signal in response to an external trigger, so that the working mode of the output head at the working position is switched to the screwdriver mode, and the screwdriver
- the head pattern is correspondingly lit, that is, the first working indicator light is on, and the controller associates the detection signal of the output head at the working position with the screwdriver mode
- the electric tool when the second button 321' is pressed, the electric tool generates a mode switching signal in response to an external trigger, to When the working mode of the output head at the working position is switched to the drilling mode, the drill bit pattern lights up correspondingly, that is, the second working indicator light is on, and the controller associates the detection signal of the output head at the working position with the drilling mode.
- the power tool switches the working mode of the output head in the working position to the screwdriver mode, that is, cancels the drill mode and enters the screwdriver mode, the screwdriver head pattern lights up, and at the same time the drill bit pattern The LED light is off, and the status of the work association is updated accordingly.
- the first button 311' in the screwdriver mode, also integrates the function of torque adjustment, and has the function of setting the torque of the output shaft. Short press the first button 311' to adjust the torque gear, long Press to enable continuous torque adjustment.
- the torque gear or torque value is digitally displayed directly on the nixie tube 335' in a lighted manner, and the nixie tube 335' can be covered by a transparent labeling film.
- control logic adopted by the electric tool in this embodiment is consistent with that in the foregoing embodiments, and will not be repeated here.
- Fig. 12 is a schematic diagram of a control interface of an electric tool according to another embodiment.
- the function switching unit 300 ′′ includes at least a first key 315 , capable of generating a mode switching signal in response to an external trigger for switching the working mode of the electric tool.
- the function switching unit 300" also includes an indicator 316.
- the indicator 316 is electrically connected to the controller 400, and the indicator 316 is used to indicate the current working mode of the electric tool 10. In this way, through the indicator 316, it is clearly in the working position It is convenient for the operator to accurately and quickly adjust the power tool 10 to the required working mode, so that the operator can quickly complete the drilling or screwing operation.
- the indicator 316 can be an indicator light, a display screen, or other indicating objects, such as electrochromic polymers and the like.
- the indicator 316 is an indicator light (such as an LED light)
- the current working mode is indicated by turning on and off the light. For example: when the light is on, the current working mode is drill mode, and when the light is off, the current working mode is screwdriver mode.
- the quantity of the indicator 316 may be one, two, three or more.
- the multiple indicator pieces 316 can be indicator lights or display screens; or, some indicator pieces 316 are indicator lights, and the other part of indicator pieces 316 are display screens.
- the indicator 316 includes a first indicator 3161 and a second indicator 3162 .
- the first indicator 3161 is in the working state.
- the second indicator 3162 is in the working state. It can be seen that one of the indicator pieces 316 is used to indicate whether the matched output head 100 is in the drill mode, and the other indicator 316 is used to indicate whether the matched output head 100 is in the screwdriver mode.
- the electric tool 10 further includes a torque regulator 113 electrically connected to the controller, wherein the controller 400 is electrically connected to the function switching unit 300 ′′.
- only one first button 315 is set for switching the working mode. Specifically, pressing the first button 315 enters another working mode and updates the output at the working position.
- the detection signal of the head is associated with the working state of the working mode; in addition, the torque regulator 113 is used to separately adjust the output torque of the output head 100 at the working position, and the setting and working logic of the indicator light and the digital tube, please refer to the foregoing embodiments, I won't repeat them here.
- the function switching unit 300 generates a mode switching signal in response to an external trigger, and the controller 400 sets the electric tool to the drill mode or the screwdriver mode according to the mode switching signal; specifically, when the electric tool is in the drill mode, the drill mode indication
- the first button 315 is triggered to generate a mode switching signal
- the output head 100 connected to the output shaft 130 that is, the working mode of the output head 100 in the working position
- the batch mode indicator light correlates the current detection signal of the output head detection component with the screwdriver mode; correspondingly, when the electric tool is in the screwdriver mode, trigger the first button 315 again to generate a mode switching signal, and switch the power tool in the working position.
- the working mode of the output head 100 is the drill mode.
- the screwdriver mode indicator light is turned off, the drill mode indicator light is turned on, and the current detection signal of the output head detection component is associated with the drill mode.
- the output head 100 coupled with the output shaft 130 outputs a constant torque
- the torque regulator 113 is operable at a preset Adjust the output torque of the output shaft 130 within the range; the torque adjusting member 113 of this embodiment is set as a torque control disc for rotation adjustment, and the numerical value or gear value corresponding to the torque is set on it, which is convenient for the operator in the screwdriver mode. Adjust the desired torque value or torque gear as required.
- the electric tool includes: a housing 12 , a motor 15 , an output shaft 130 , a working component 120 and a control device.
- the control device includes a function switching unit 300 and a controller 400 electrically connected to the function switching unit 300 .
- the function switching unit 300 is used for inputting a mode switching signal, and the controller 400 sets the electric tool 10 to a drill mode or a screwdriver mode according to the received mode switching signal.
- the output head 100 in the working position outputs a constant torque.
- the output torque of the output head 100 in the working position can be adjusted within a preset range; corresponding to any output head 100 in the working position, the function switching unit 300 is operable to make the electric tool 10 Switch between drill mode and screwdriver mode.
- the above-mentioned electric tool 10 switches the output head 100, so that one of the output heads 100 is mated with the output shaft 130 and is in the working position, so as to ensure that the motor 15 can drive the output head 100 to rotate through the output shaft 130 to perform drilling. drilling or screwing.
- the function switching unit 300 is integrated in the electric tool 10, when the operator needs to operate in different working modes, the operator can operate the electric tool 10 through the function switching unit 300 (for example: pressing, sliding , rotation, etc.) corresponding to the mode switching signal.
- the controller 400 controls the electric tool 10 to be set to a desired working mode (such as a drill mode or a screwdriver mode) according to the received mode switching signal, so that any output head 100 is not limited to one working mode.
- At least two output heads 100 can be pre-installed with different types of drills or screwdrivers, so that when in use, only need to switch the position of the output head 100, and
- the corresponding mode switching signal is input through the function switching unit 300 to ensure that the electric tool 10 is always in the desired working mode, and the operation of drilling holes of different sizes or screwing screws of different types can be completed without frequent replacement of working accessories, further improving the operation of the product sense of experience.
- the output torque of the output head 100 in the working position can be in a constant state, or can be adjusted within a preset range.
- These two torque output methods can be achieved by controlling the input power of the motor 15.
- the controller 400 receives the mode switching signal, it changes the control circuit in the electric tool 10 to affect the input power of the motor 15 to realize Changes in the output torque of the motor 15 .
- the controller 400 is a single-chip microcomputer, and a driving module is integrated on the single-chip microcomputer.
- the drive module sends a MOS drive signal to the power module, such as by adjusting the duty cycle to achieve different power outputs.
- the function switching unit 300 of this embodiment should be understood as including at least the operating components and the detection and control components associated with the operating components. You can switch between modes.
- the working modes of the electric tool 10 include at least a drill mode and a screwdriver mode.
- the drill mode and the screwdriver mode are preset in the electric tool 10 , for example: when the electric tool 10 switches to the drill mode, the output torque of the output head 100 in the working position is a constant torque.
- the output torque of the output head 100 in the working position can be adjusted within a preset range.
- the preset range may be determined according to the actual product.
- the electric tool 10 also includes a torque regulator electrically connected to the controller 400 .
- the torque regulator is activated when the power tool 10 is switched to the screwdriver mode. It should be noted that the mode of switching the electric tool 10 to the screwdriver mode is not limited to automatic switching or manual switching, as long as the electric tool 10 is in the screwdriver mode, the torque regulator can be triggered.
- the torque adjusting member When the torque adjusting member is activated, the operator can set the output torque of the output head 100 within a preset range through the torque adjusting member, so as to satisfy screwing operations under different torques.
- the adjustment method of the torque adjusting member may be a rotation method, or a pressing method, and the like.
- the torque adjusting member 113 is an independently provided knob.
- the torque adjusting member 113 can be a dial-type potentiometer device or the like.
- the first button 311' when entering the screwdriver mode, the first button 311' is activated as a torque regulator, which can adjust the working torque of the output head in response to external triggering/pressing.
- one or more gears can be set.
- the output torque of the output head 100 in the working position can be adjusted once every time it is triggered.
- the value of the output torque gear can be adjusted incrementally from gear 1 to gear 9 (of course, it can also be adjusted in descending order in other embodiments), when the gear When the digit value is 9 gears, it is triggered again, and its gear value can be reset to 1 gear circularly.
- the power tool 10 includes a gear transmission mechanism 155 disposed between the motor 15 and the output shaft 130 , and the housing 12 can be positioned between a first position and a second position.
- Moving gear adjustment member 150 When the electric tool 10 is in the drilling mode and the gear adjustment member 150 is in the first position, the gear transmission mechanism 155 has a first transmission ratio, and the output head 100 in the working position can output a first constant speed.
- the gear transmission mechanism 155 When the electric tool 10 is in the drilling mode and the gear adjustment member 150 is in the second position, the gear transmission mechanism 155 has a second transmission ratio, and the output head 100 in the working position can output a second constant speed.
- the output of the output head 100 in the working position has at least two kinds of speed adjustments.
- the gear adjustment member 150 moves to the first position, the transmission ratio of the gear transmission mechanism 155 is changed to the first transmission ratio, so that the output head 100 in the working position outputs at the first constant speed.
- the gear adjusting member 150 moves to the second position, the transmission ratio of the gear transmission mechanism 155 is adjusted to the first transmission ratio, so that the output head 100 in the working position performs output at the second constant speed.
- the moving manner of the gear adjustment member 150 may be but not limited to sliding manner, rotating manner, pressing manner and the like.
- the gear transmission mechanism 155 includes a sun gear 1550 , a first planetary gear 1551 mounted on the sun gear 1550 , and a speed-regulating ring gear 1552 sleeved on the first planetary gear 1551 ,
- the speed regulating ring gear 1552 has a first position and a second position in the axial direction of the sun gear 1550. When the speed regulating ring gear 1552 is in the first position, the speed regulating ring gear 1552 meshes with the sun gear 1550 and the first planetary gear 1551 at the same time.
- the speed regulating ring gear 1552 meshes with the first planetary gear 1551 and disengages from the sun gear 1550 , and the adjusting member is in transmission cooperation with the speed regulating ring gear 1552 .
- the speed regulating ring gear 1552 meshes with the gear plate of the sun gear 1550 and the first planetary gear 1551 at the same time, at this time, the rotation on the motor 15
- the speed regulating ring gear 1552 is directly transmitted to the sun gear 1550 (that is, the speed regulating ring gear 1552 is in a rotatable state);
- the speed-regulating ring gear 1552 is in a non-rotating state under the restriction of the reduction box 1553), at this time, the rotation on the motor 15 can only be transmitted to the first planetary gear 1551, so that the first planetary gear 1551 is in the speed-regulating ring gear 1552
- the revolution drives the sun gear 1550 to rotate, thereby reducing the output power of the motor 15 and realizing the deceleration effect.
- gear transmission mechanism 155 of this embodiment may be composed of a multi-stage star wheel assembly. At the same time, during the deceleration process, two-stage deceleration, three-stage deceleration or more deceleration effects can be realized.
- the gear transmission mechanism 155 also includes a reduction box 1553 , and a first planetary carrier 1554 , a second planetary gear 1555 , a first ring gear 1556 , and a second planetary carrier arranged in the reduction box 1553 1557, the third planetary gear 1558 and the second ring gear 1559.
- the first ring gear 1556 sleeves and engages with the second planetary gear 1555 .
- the first ring gear 1556 is in a fixed state relative to the reduction box 1553 .
- the second planetary gear 1555 is mounted on the first planetary carrier 1554 .
- the output shaft 130 of the first planet carrier 1554 is engaged in the first planet gear 1551 .
- the second ring gear 1559 sleeves and engages with the third planetary gear 1558 .
- the second ring gear 1559 is in a fixed state relative to the reduction box 1553 .
- the third planetary gear 1558 is mounted on the second planetary carrier 1557 .
- the second planet carrier 1557 is in drive connection with the output shaft 130 .
- the casing 12 is provided with a sliding slot 112 .
- the gear adjustment member 150 is located in the sliding slot 112 and is in transmission cooperation with the speed regulating ring gear 1552 .
- the gear adjusting member 150 can move back and forth along the axial direction of the output shaft 130 in the sliding slot 112 . In this way, when the operator needs to adjust the output speed of the electric tool 10, he only needs to toggle the gear adjustment member 150 back and forth.
- the control device further includes a detection device 170 for detecting the gear adjusting member 150 .
- the detection device 170 is electrically connected to the controller 400.
- the detection device 170 sends a first detection signal
- the detection device 170 sends a second detection signal
- the first detection signal is different from the second detection signal.
- the detection signal that is, the specific position of the gear adjustment member 150 can be accurately identified through the detection device 170 , so that the control device can make corresponding adjustments to the output torque of the motor 15 .
- the detection device 170 is a device capable of detecting the gear adjusting member 150 in the first position or the second position, and sending an electrical signal with sufficient identification to the controller 400 .
- the detection device 170 can be a Hall sensor and a magnet with two magnetic poles arranged forward and backward; or it can be other sensing devices, such as pressure-sensitive sensing devices, light-sensitive sensing devices, and the like.
- this embodiment does not make specific limitations, as long as it can detect the gear adjustment member 150 at the first position or the second position, and can send the first detection signal and the second detection signal.
- the controller 400 controls the motor 15 to output a first constant torque according to the first detection signal, and controls the motor 15 to output a second constant torque according to the second detection signal.
- the first constant torque is different from the second constant torque.
- the controller 400 controls the output torque of the motor 15 to be adjustable in the first preset range according to the first detection signal, and controls the output torque of the motor 15 to be adjustable in the second preset range according to the second detection signal. It is adjustable within a set range, and the first preset range is different from the second preset range.
- the output torque of the motor 15 also changes correspondingly synchronously.
- the gear adjustment member 150 moves between the first position and the second position to change the transmission ratio of the gear transmission mechanism 155, and at the same time, the detection device 170 sends a corresponding detection signal to the controller 400 (ie the first detection signal and the second detection signal).
- the controller 400 controls the motor 15 to output corresponding constant torques (ie, the first constant torque and the second constant torque), so as to ensure that the output head 100 in the working position can output at different rotational speeds.
- the gear adjustment member 150 moves between the first position and the second position to change the transmission ratio of the gear transmission mechanism 155, and at the same time, the detection device 170 sends a corresponding signal to the controller 400.
- the detection signal (that is, the first detection signal and the second detection signal).
- the controller 400 controls the output torque of the motor 15 to be adjusted within the corresponding preset range (ie, the first preset range and the second preset range), so as to ensure that the rotation speed of the output head 100 at the working position is within Adjust the output within the corresponding range.
- a magnet can be arranged in the position area corresponding to each output head 100, and the magnetic poles of the two adjacent magnets are oppositely arranged, that is, one is facing the north pole. up, and the other with the South Pole facing up.
- the Hall sensor can obtain different sensing signals, so that the electric tool 10 is in a corresponding working mode.
- the power tool 10 further includes a control mechanism 20 .
- the control mechanism 20 is used to control the locking or releasing of the working assembly 120 relative to the casing 12 .
- the control mechanism 20 is used again to release the current mating between the output head 100 and the output shaft 130 and the lock release with the housing 12 .
- the control mechanism 20 includes an operation button 21 and a clutch sleeve 161 linked with the operation button 21 .
- the clutch sleeve 161 is sleeved on the output shaft 130 .
- the operation button 21 is movably arranged on the housing 12.
- the operation button 21 When the operation button 21 moves, it can drive the clutch sleeve 161 to move along the axis direction of the output shaft 130, so that the clutch sleeve 161 is mated with the working shaft of the output head 100 and at the same time the working The assembly 120 is locked relative to the housing 12 , or the clutch sleeve 161 is disengaged from the working shaft of the output head 100 and at the same time releases and locks the working assembly 120 relative to the housing 12 .
- the trigger operation button 21 moves, driving the clutch sleeve 161 to move away from the working assembly 120 along the axis direction of the output shaft 130, so that it is separated from the output head 100 Unlock the working assembly 120 and the casing 12 while mating.
- the operator can switch the required output head 100 to the working position; please refer to Figure 2b and Figure 2d, after switching, by loosening or reversely triggering the operation button 21, the clutch sleeve 161 will move along the direction of the output shaft 130.
- the locking or unlocking between the working component 120 and the housing 12 can be realized by buckling, for example: the working component 120 is provided with an elastic hook structure, and the housing 12 is provided with a slot structure and the like.
- the operation button 21 can be directly connected to the clutch sleeve 161 to form an integral structure. At this time, when the operation button 21 moves, it directly drives the clutch sleeve 161 to act together.
- the operating button 21 can also be indirectly connected to the clutch sleeve 161 , that is, an intermediate structure is used for transmission between the operating button 21 and the clutch sleeve 161 .
- the clutch sleeve 161 of this embodiment has a cylindrical structure.
- the movement method of the operation button 21 on the housing 12 may be rotation, sliding, rotation or pressing.
- the control mechanism 20 further includes a transmission member 163 located in the casing 12 .
- the operation button 21 is in transmission connection with the clutch sleeve 161 through the transmission member 163, that is, the transmission between the operation button 21 and the clutch sleeve 161 is an indirect transmission. In this way, through the transmission member 163 , the clutch sleeve 161 can move better under the action of the operation button 21 .
- the clutch sleeve 161 is provided with a first buckle 1611 .
- the transmission member 163 is provided with a second buckle 1631 snap fit with the first buckle 1611 .
- the first buckle position 1611 is a groove or hole structure
- the second buckle position 1631 is a convex structure
- the first buckle position 1611 is a convex structure
- the second buckle position 1631 is a groove or hole structure.
- the operation button 21 is rotatably mounted on the casing 12 , and the operation button 21 is provided with a third buckle 1621 .
- the transmission member 163 is provided with a fourth buckle 1632 snap fit with the third buckle 1621 .
- the third buckle 211 is a groove or hole structure
- the fourth buckle 1632 is a convex structure
- the third buckle 1621 is a convex structure
- the fourth buckle 1632 is a groove or a hole structure.
- the manipulation mechanism 20 further includes a first reset member 1622 .
- the first reset member 1622 is disposed between the operation button 21 and the housing 12 , and the first reset member 1622 is used to restore the operation button 21 to an initial position. In this way, when the operation button 21 moves to contact the mating between the clutch sleeve 161 and the output head 100, the operation button 21 is released, so that the operation button 21 returns to the initial position under the action of the first reset member 212 to drive the clutch The sleeve 161 is also synchronously restored to the initial position.
- the first return member 1622 can be a spring, elastic rubber or elastic metal sheet, and the like.
- the first return member 1622 is a first spring.
- the manipulation mechanism 20 further includes a second reset member 1612 .
- the second reset member 1612 is disposed between the clutch sleeve 161 and the output shaft 130 , and the second reset member 1612 is used to restore the clutch sleeve 161 to an initial position. In this way, when the operation button 21 is released, the clutch sleeve 161 returns to the initial position under the action of the second reset member 1612 .
- the second restoring member 1612 can be a spring, elastic rubber or elastic metal sheet, etc.
- the second return member 1612 is a second spring.
- the second spring is sleeved on the output shaft 130 and is connected to or interferes with the clutch sleeve 161 .
- the electric tool 10 further includes a control switch electrically connected to the controller 400 to realize start-stop control of the electric tool 10 .
- a control switch electrically connected to the controller 400 to realize start-stop control of the electric tool 10 .
- the working assembly 120 further includes an indexing body rotatably disposed on the casing 12 , the indexing body has a rotation axis, and the indexing body rotates on the casing 12 around the rotation axis.
- At least two output heads 100 are arranged at intervals on the indexing body, and the at least two output heads 100 are arranged symmetrically with respect to the rotation axis.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
- Numerical Control (AREA)
- Percussive Tools And Related Accessories (AREA)
- Portable Power Tools In General (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
本申请涉及电动工具技术领域,具体公开一种电动工具及其控制方法。工具包括至少两个输出头,输出头检测组件能够检测工作位置处的输出头的位置并生成检测信号,检测信号与输出头的工作模式相关联;功能切换单元响应于外界触发,生成用于指示对工作位置处输出头的工作模式进行切换的模式切换信号;控制器连接所述输出头检测组件和所述功能切换单元,响应于所述模式切换信号,切换工作位置处输出头的工作模式,并将所述检测信号与切换之后的工作模式相关联。无需切换输出头即可实现工作模式的切换且确保工作位置处的输出头与所需的工作模式准确对应,简化了操作,有效提高了电动工具的使用效率和使用便利性。
Description
本发明涉及电动工具技术领域,特别是涉及一种电动工具及其控制方法。
双头电动工具或多头电动工具广泛应用于机械、建筑等领域,由于电动工具包括至少两个输出头,因此无需更换工具机身即可使用不同的输出头实现不同的功能。
例如,包括两个输出头,一个输出头实现钻进功能,另一个输出头实现螺丝批功能。一般的操作过程是,当需要使用钻进功能时,则将钻进功能对应的输出头调整至工作位置处,再为其更换钻进工作附件,当需要使用螺丝批功能,则将螺丝批功能对应的输出头调整至工作位置处,再为其更换螺丝批工作附件。然而,上述方式较为繁琐,一旦工作位置处的输出头与所需的工作模式不对应,往往需频繁地更换工作附件或切换输出头,操作不便,使用效率低下。
发明内容
基于此,有必要针对上述问题,提供一种电动工具及其控制方法。
一种电动工具,包括:
至少两个输出头,分别可选择的位于工作位置或非工作位置;
输出头检测组件,能够检测工作位置处的输出头,并生成检测信号,所述检测信号与输出头的工作模式相关联;
功能切换单元,能够响应于外界触发,生成用于指示对工作位置处输出头的工作模式进行切换的模式切换信号;
控制器,连接所述输出头检测组件和所述功能切换单元,能够响应于所述模式切换信号,切换工作位置处输出头的工作模式,并能够将所述检测信号与切换之后的工作模式相关联。
在其中一个实施例中,所述电动工具还包括:
输出头切换单元,分别连接各所述输出头,响应于外界触发,对工作位置处的输出头进行切换,以改变所述输出头检测组件的检测信号,所述控制器能够响应于检测信号的改变,切换工作位置处输出头的工作模式。
在其中一个实施例中,所述输出头检测组件包括检测元件,所述检测元件包括霍尔传感器、光传感器或接近传感器。
在其中一个实施例中,所述功能切换单元还能够响应于外界触发,生成用于指示对工作位置处输出头的工作扭矩进行切换的扭矩切换信号,所述控制器能够响应于所述扭矩切换信号,切换工作位置处输出头的工作扭矩。
在其中一个实施例中,所述功能切换单元包括第一切换区和第二切换区,所述输出头的工作模式包括第一模式和第二模式,所述第一切换区和第二切换区分别对应于第一模式和第二模式。
在其中一个实施例中,所述第一切换区包括第一按键,所述第一按键能够响应于外界触发生成模式切换信号,以供工作位置处输出头的工作模式切换为所述第一模式;所述第二切换区包括第二按键,所述第二按键能够响应于外界触发生成模式切换信号,以供工作位置处输出头的工作模式切换为所述第二模式。
在其中一个实施例中,所述第一按键还能够响应于外界触发生成扭矩切换信号,以供工作位置处输出头改变工作扭矩。
在其中一个实施例中,所述功能切换单元包括显示区,用于显示当前扭矩。
在其中一个实施例中,所述功能切换单元还包括对应于各工作模式的指示灯,所述指示灯用于指示当前工作位置处输出头的工作模式。
在其中一个实施例中,在电动工具上电后,读取预存储的工作关联状态,所述工作关联状态用于表征所述检测信号与工作模式的关联关系。
所述控制器还响应于电动工具停机,获取当前的检测信号和工作位置处输出头的工作模式,存储所述工作关联状态,所述工作关联状态用于表征所述检测信号与工作模式的关联关系。
在其中一个实施例中,所述控制器检测所述电动工具的工作状态参数满足预设值时,判断所述电动工具停机,所述工作状态参数包括:电压、电流、温度、电机转速、电机停止时长中的至少一种。
在其中一个实施例中,所述工作模式包括螺丝批模式和钻模式。
一种电动工具的控制方法,所述电动工具包括至少两个输出头,所述控制方法包括:
检测工作位置处的输出头并生成检测信号,所述检测信号与输出头的工作模式相关联,不同的所述输出头位于工作位置处时,对应的所述检测信号不同;
响应于外界触发,生成用于指示对工作位置处输出头的工作模式进行切换的模式切换信号;
响应于模式切换信号,切换工作位置处输出头的工作模式,并将所述检测信号与切换之后的工作模式相关联。
在其中一个实施例中,所述控制方法还包括:
检测到上电后,读取预先存储的工作关联状态,所述工作关联状态用于表征检测信号与工作模式的关联关系;
根据所述检测信号与所述工作关联状态,确定工作位置处输出头的工作模式;
响应于模式切换信号,切换工作位置处输出头的工作模式,并将所述检测信号与切换之后的工作模式相关联,更新所述工作关联状态。
在其中的一个实施例中,所述方法还包括:控制指示灯开启,用以指示工作位置处输出头的工作模式。
在其中的一个实施例中,所述方法还包括:当判断所述电动工具停机时,确定当前检测信号,以及工作位置处输出头的工作模式;存储所述工作关联状态。
在其中的一个实施例中,所述检测信号包括霍尔信号、光信号或接近信号。
在其中的一个实施例中,所述检测信号包括第一信号和第二信号,所述工作模式包括第一模式和第二模式;
所述工作关联状态包括:所述第一信号对应所述第一模式,所述第二信号对应所述第二模式;或者,所述第一信号对应所述第二模式,所述第二信号对应所述第一模式。
在其中的一个实施例中,所述方法还包括,所述第一模式为螺丝批模式,第二模式为钻模式。
在其中一个实施例中,所述方法还包括:
当确定当前工作位置处输出头的工作模式为第一模式时,当检测到第一模式对应的扭矩切换信号,控制切换所述工作位置处输出头的工作扭矩。
在其中一个实施例中,所述方法还包括:
当确定当前工作位置处输出头的工作模式为第一模式时,控制显示区开启,用以指示当前工作位置处输出头的工作扭矩。
在其中一个实施例中,所述方法还包括:当判断所述电动工具停机时,存储第一模式下的工作扭矩。
在其中一个实施例中,所述方法还包括:
检测所述电动工具的工作状态参数;
当所述工作状态参数满足预设条件时,判断所述电动工具停机,所述工作状态参数包括电压、电流、温度、电机转速、电机停止时长中的至少一种。
上述电动工具,通过输出头检测组件检测工作位置处的输出头并生成相应的检测信号,通过功能切换单元响应于外界触发,生成模式切换信号,其中,模式切换信号用于指示对工作位置处输出头的工作模式进行切换,控制器则响应于模式切换信号,切换工作位置处输出头的工作模式,并能够将工作位置处输出头对应的检测信号与切换之后的工作模式相互关联。即,同一个输出头可以具有多种工作模式,当同一个输出头处于工作位置处时,可以通过功能切换单元对其工作模式进行切换,并将切换后的工作模式与当前检测信号相关联,由于检测信号与输出头的位置一一对应,即实现将切换后的工作模式与当前工作位置的输出头关联匹配,由此,无需切换输出头即可实现工作模式的切换且确保工作位置处的输出头与所需的工作模式准确对应,简化了操作,有效提高了电动工具的使用效率和使用便利性。
本发明还提供一种电动工具,所述电动工具包括:
壳体,包括一沿纵轴线延伸的主机壳体、以及与主机壳体呈角度的手柄壳体,与所述主机壳体与手柄壳体相连部位相对的部位定义为主机壳体的顶部;
马达,设置于所述主机壳体内;
开关扳机,设置于所述手柄壳体,用于控制所述马达的启停;
输出轴,由所述马达驱动作旋转运动;
工作组件,所述工作组件包括第一输出头以及第二输出头,所述第一输出头及第二输出头可择一地与所述输出轴配接;
控制装置,所述控制装置包括功能切换单元、与所述功能切换单元电性连接的控制器;所述功能切换单元设置于所述顶部,并能够响应于外界触发,生成模式切换信号,所述控制器根据接收到的模式切换信号对与所述输出轴配接的输出头的工作模式进行切换,以将电动工具设定为钻模式或螺丝批模式;当所述电动工具处于钻模式时,与所述输出轴配接的输出头输出恒定扭矩,当所述电动工具处于螺丝批模式时,与所述输出轴配接的输出头的输出扭矩在预设范围内可调节。
在其中一个实施例中,所述主机壳体与手柄壳体于相连部位设置有操作钮,所述开关扳机紧邻所述操作钮设置;所述操作钮用于解除所述输出头相对所述主机壳体的位置锁定,以使得操作者握持所述手柄壳体的手可选择地触发所述操作钮或者所述扳机开关。
在其中一个实施例中,所述电动工具包括设置于所述马达与所述输出轴之间的齿轮传动机构、以及相对所述主机壳体可在第一位置与第二位置之间移动、从而调节输出轴的不同转速的档位调节件,所述档位调节件位于所述顶部且靠近所述齿轮传动机构。
在其中一个实施例中,所述功能切换单元包括至少一个按键,所述按键用于可操作地将电动工具的工作模式在钻模式与螺丝批模式之间切换。
在其中一个实施例中,所述电动工具还包括与所述控制器电性连接的扭矩调节件,所述扭矩调节件用于可操作地调节螺丝批模式下的与所述输出轴配接的输出头的输出扭矩。
在其中一个实施例中,所述电动工具还包括与所述控制器电性连接的扭矩调节件;所述功能切换单元包括第一按键,所述第一按键用于可操作地将所述电动工具的工作模式切换至螺丝批模式;在螺丝批模式下,所述第一按键还可用于充当所述扭矩调节件,用于调节所述输出轴配接的输出头的输出扭矩。
在其中一个实施例中,所述功能切换单元还包括第二按键,所述第二按键用于可操作地将所述电动工具的工作模式切换至钻模式;所述第一按键与所述第二按键并列设置。
在其中一个实施例中,所述第一按键及第二按键分别设置表征工作模式的标识或图案。
在其中一个实施例中,所述电动工具进一步包括对应所述第一按键的第一工作指示灯,以及对应第二 按键的第二工作指示灯,电动工具处于钻模式时,第一工作指示灯亮;电动工具处于螺丝批模式时,第二工作指示灯亮。
在其中一个实施例中,所述电动工具还包括与所述控制器电连接的显示区,所述显示区用于在螺丝批模式下显示所述输出轴配接的输出头的设定扭矩。
上述电动工具,通过功能切换单元响应于外界触发,生成模式切换信号,其中模式切换信号用于指示对工作位置处输出头的工作模式进行切换,控制器响应于模式切换信号,切换工作位置处输出头的工作模式,。切换至钻模式时,工作位置处的输出头,即与所述输出轴配接的输出头输出恒定扭矩,切换螺丝批模式时,与所述输出轴配接的输出头的输出扭矩在预设范围内可调节。其中,功能切换单元可以包括按键用于切换工作模式,也可以包括扭矩调节件用于调节扭矩,或者可以包括集成了切换工作模式与扭矩调节的按键,使得功能切换界面更加利于用户操作,提高了便利性。
本发明还提供一种电动工具,其特征在于,所述电动工具包括:
壳体;
马达,所述马达设置于所述壳体内;
输出轴,所述马达驱使所述输出轴旋转;
工作组件,所述工作组件包括至少两个输出头,所述输出头可选择地处于与所述输出轴配接的工作位置;
控制装置,所述控制装置包括功能切换单元、以及与所述功能切换单元电性连接的控制器;对应于任一处于工作位置的输出头,所述功能切换单元可操作地使所述电动工具在钻模式与螺丝批模式之间切换;所述功能切换单元能够响应于外界触发,生成用于指示对工作位置处输出头的工作模式进行切换的模式切换信号,所述控制器响应于所述模式切换信号将所述电动工具设定为钻模式或螺丝批模式;当所述电动工具处于钻模式时,处于工作位置的输出头输出恒定扭矩,当所述电动工具处于螺丝批模式时,处于工作位置的输出头的输出扭矩在预设范围内可调节。
在其中一个实施例中,所述电动工具还包括与所述控制器电性连接的扭矩调节件,当所述电动工具切换至螺丝批模式时,所述扭矩调节件被激活,所述扭矩调节件可操作地在预设范围内设定所述输出头的输出扭矩。
在其中一个实施例中,所述电动工具还包括与所述扭矩调节件电性连接的显示区,所述显示区用于显示所述扭矩调节件设定的输出扭矩。
在其中一个实施例中,所述电动工具包括设置于马达与输出轴之间的齿轮传动机构、以及相对壳体可在第一位置与第二位置之间移动的档位调节件;当所述电动工具处于钻模式,且档位调节件处于第一位置时,所述齿轮传动机构具有第一传动比,处于工作位置的输出头能输出第一恒定转速;当所述电动工具处于钻模式,且档位调节件处于第二位置时,所述齿轮传动机构具有第二传动比,处于工作位置的输出头能输出第二恒定转速。
在其中一个实施例中,所述控制装置还包括用于检测档位调节件的检测装置,所述检测装置与控制器电性连接,当档位调节件处于第一位置时,检测装置发出第一检测信号,当档位调节件处于第二位置时,检测装置发送第二检测信号,所述第一检测信号不同于所述第二检测信号。
在其中一个实施例中,当所述电动工具处于钻模式时,所述控制器根据所述第一检测信号控制所述马达输出第一恒定扭矩,根据所述第二检测信号控制所述马达输出第二恒定扭矩,所述第一恒定扭矩不同于第二恒定扭矩;当所述电动工具处于螺丝批模式时,所述控制器根据所述第一检测信号,控制所述马达的输出扭矩在第一预设范围可调,根据所述第二检测信号,控制所述马达的输出扭矩在第二预设范围内可调,所述第一预设范围不同于第二预设范围。
在其中一个实施例中,所述电动工具还包括与所述控制器电性连接的检测元件,所述检测元件包括设置于所述壳体的第一检测元件、以及设置于工作组件的第二检测元件,所述工作组件相对所述壳体可旋转地设置,当输出头之一相对壳体旋转至预设位置时,所述第一检测元件与第二检测元件相互作用并产生电信号,所述控制器根据所述电信号为所述电动工具匹配预设的工作模式。
在其中一个实施例中,所述检测元件包括霍尔传感器、光传感器或接近传感器。
在其中一个实施例中,所述检测元件设置为非接触式开关,所述第一检测元件为磁铁和霍尔元件的一种,所述第二检测元件为磁铁和霍尔元件的另一种,当输出头之一相对壳体旋转至预设位置时,所述霍尔元件与磁铁产生感应信号,当输出头之一相对壳体旋转至第一预设位置时,所述霍尔元件与磁铁产生第一感应信号,控制器控制所述电动工具处于钻模式和螺丝批模式中的一种;当输出头之一相对壳体旋转至第二预设位置时,所述霍尔元件与磁铁产生第二感应信号,控制器控制所述电动工具处于钻模式和螺丝批模式中的另一种。
在其中一个实施例中,所述功能切换单元包括信号感应件与至少一个触发件,所述信号感应件与所述控制器电性连接,所述触发件可操作地触发所述信号感应件以向所述控制板传输模式切换信号。
在其中一个实施例中,所述控制装置还包括指示件,所述指示件与所述控制器电性连接,所述指示件用于指示所述电动工具当前所处的工作模式,所述指示件包括第一指示件和第二指示件,所述电动工具处于钻模式时,所述第一指示件处于工作状态,所述电动工具处于螺丝批模式时,所述第二指示件处于工作状态。
图1为本申请一实施例提供的电动工具的结构示意图;
图2a为一个实施例中所述的配接时电动工具结构剖视图;
图2b为一个实施例中所述的脱离配接时电动工具结构剖视图;
图2c为图2a中所述的电动工具局部结构放大示意图;
图2d为图2b中所述的电动工具局部结构放大示意图;
图3为本申请一实施例提供的电动工具的功能切换模块图;
图4为本申请一实施例提供的电动工具的结构示意图;
图5为本申请一实施例提供的电动工具的局部结构示意图;
图6为图5中z区域的放大图;
图7为本申请一实施例提供的电动工具的控制方法的流程框图;
图8为本申请一实施例提供的电动工具的控制方法的一个具体示例的流程框图;
图9为本申请另一实施例提供的电动工具的控制界面俯视示意图;
图10为图9中电动工具切换至钻模式时的示意图;
图11为图9中电动工具切换至螺丝批模式时的示意图;
图12为本申请另一实施例提供的电动工具的控制界面的俯视示意图;
图13为一个实施例中所述的减速器结构爆炸示意图;
图14为一个实施例中所述的减速器结构剖视示意图。
为了便于理解本发明,下面将参照相关附图对本发明进行更全面的描述。附图中给出了本发明的优选实施方式。但是,本发明可以以许多不同的形式来实现,并不限于本文所描述的实施方式。相反的,提供 这些实施方式的目的是为了对本发明的公开内容理解得更加透彻全面。
在本发明中,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或成一体;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系,除非另有明确的限定。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本发明中的具体含义。
需要理解的是,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。
术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中,“多个”的含义是至少两个,例如两个,三个等,除非另有明确具体的限定。
除非另有定义,本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的,不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
正如背景技术中所述,为了丰富电动工具的功能,双头电动工具或多头电动工具已被广泛应用。以双头电动工具为例,一个输出头用于实现钻进功能,另一个输出头用于实现螺丝批功能,当需要进行工作模式的转换时,往往是切换工作位置处的输出头,将所需工作模式对应的输出头切换至工作位置处,再为输出头更换对应的工作附件,由此完成整个切换过程。但是,实施上述切换过程较为复杂,一旦工作位置处的输出头与所需的工作模式不对应,往往需频繁地更换工作附件或切换输出头。
例如:场景1、工作附件安装后,发现工作附件与当前输出头对应的工作模式不一致,则无法正常工作,只能通过重新安装工作附件才能正常工作;
场景2、需要打不同大小的孔或拧不同信号的螺钉时,即针对同一个工作模式下需采用不同尺寸的工作附件,会在两个输出头上均安装钻工作附件或均安装螺丝批工作附件。假设输出头1对应钻模式,输出头2对应螺丝批模式,需求是在钻模式下打尺寸不同的两个孔,因此在输出头1上和输出头2上分别安装不同尺寸的钻工作附件,当通过输出头1打完第一个孔之后,需使用输出头2打第二个孔,然而切换至输出头2时,其工作模式相应变化为螺丝批模式,这与所需的钻模式不一致。因此只能在输出头1上反复更换不同尺寸的钻工作附件,才能打出不同尺寸的孔。
场景3、需要在不同工作模式之间进行切换,需首先切换工作位置处的输出头,实现工作模式的切换,然后在工作位置处的输出头上安装所需的工作附件,如此才能实现需求,操作繁琐。
场景4、每个输出头对应工作模式不唯一,通过拨盘调节扭矩和模式切换,但需在最大扭矩与不同扭矩间反复操作,才能够改变模式,操作繁琐。
结合上述列举出的几种场景可知,目前双头或多头电动工具的使用仍较为繁琐不便,使用效率较低。
为了解决上述问题,本申请实施例提供了一种电动工具及其控制方法。
本申请实施例提供的电动工具可以为电钻、电锤等电动工具。参照图1、图2a所示,一实施例中,电动工具10包括主机壳体12以及与主机壳体呈角度设置的手柄壳体14,马达15设置于主机壳体12内,主机壳体12沿纵向延伸且具有纵向轴线X,手柄壳体14与主机壳体12之间大致呈90度直角或大于90度小于120度的钝角;手柄壳体14的末端部设置有电池包安装座141,用于可拆卸地连接可充电电池包30。 马达15驱动输出轴130作旋转运动。
工作组件120包括至少两个输出头100和输出头切换件,输出头100可择一地处于与输出轴130配接的工作位置,可相对主机壳体12锁定或者解除锁定。具体地,可通过将工作组件120在解锁位置绕枢转轴线Y相对主机壳体12旋转,使所选择的输出头达到工作位置,即输出头100可选择地位于与输出轴130配接的工作位置,或处于与输出轴130脱开的非工作位置;输出头100择一地与输出轴130配接,输出轴130可根据需求选择连接不同类型的工作部件,例如钻头、批头。
扳机开关18设置在手柄壳体14靠近主机壳体12的部位,与设置在手柄壳体14内的控制器400电性连接,,扳机开关18可用于激活控制器400和/或启动马达15。
主机壳体12与手柄壳体14于相连部位设置有操作钮21,操作钮21紧邻扳机开关18的位置设置,以使操作者握持手柄壳体14的手可选择地触发操作扭21或者扳机开关18;操作钮21用于解除工作组件120相对主机壳体12的位置锁定。
图中以实线和虚线分别示出了扳机开关18和操作钮21的运动示意位置,也就是说,扳机开关18和操作钮21的运动方向均与主机壳体12的纵向轴线X方向一致,符合使用者的操作习惯;具体地,扳机开关18启动马达15沿图中箭头所示向远离工作组件120方向平移,操作钮21解除工作组件120相对主机壳体12的锁定也是向远离工作组件120方向平移运动。
参照图1、图2a所示,电动工具10包括设置于马达15与输出轴130之间的齿轮传动机构155、以及相对主机壳体12可在第一位置与第二位置之间移动的高低速档位调节件150,以改变齿轮传动机构155中齿轮的传动方式而改变减速比,从而调节出输出轴的不同转速,高低速档位调节件150位于主机壳体的顶部121且靠近齿轮传动机构155。
主机壳体12上、靠近工作组件120的一端设置有照明灯160,照明灯160设置成LED,在扳机开关18给马达15上电时被点亮,并随着扳机开关18的断电而延时熄灭。
参照图3和图4,本实施例中,电动工具还包括输出头检测组件200、功能切换单元300以及控制器400。
其中,输出头检测组件200设置于预设位置处,用于检测工作位置处的输出头100并生成检测信号,不同的输出头100位于工作位置时,对应的检测信号不同,且检测信号与输出头的工作模式相关联。具体地,输出头检测组件200所产生的检测信号会随着输出头100位置的变化而变化,例如,当工作位置处的输出头100为输出头a,则检测信号为A,当工作位置处的输出头100为输出头b,则检测信号为B,据此可根据检测信号推断出当前位于工作位置处的输出头100是输出头a还是输出头b。
主机壳体12上与手柄壳体14相连部位相对的部位定义为主机壳体12的顶部121,功能切换单元300设置于顶部121且靠近工作组件120的位置。
其中,功能切换单元300能够响应于外界触发,生成用于指示对工作位置处输出头100的工作模式进行切换的模式切换信号。具体地,功能切换单元300可供用户触发,通过触发功能切换单元300,可生成相应的模式切换信号并发送至控制器400。例如,该电动工具一共具有两种工作模式,当前处于工作位置处的输出头100为工作模式1,当触发功能切换单元300,可将工作模式1切换至工作模式2,即,控制当前处于工作位置处的输出头100进入工作模式2。值得注意的是,此时无需按传统的方式调节输出头100切换工作模式,而是直接触发功能切换单元300,即可实现当前工作位置处输出头100的工作模式切换。
控制器400连接输出头检测组件200和功能切换单元300,能够响应于模式切换信号,切换工作位置处输出头100的工作模式,并能够将检测信号与切换之后的工作模式相关联。具体地,当控制器400接收到功能切换单元300生成的模式切换信号之后,便将输出头检测组件200当前检测到的检测信号与切换之后的工作模式相对应关联,由于检测信号可以表征当前工作位置处的输出头100,因此,控制器400实则 是将当前工作位置处的输出头100与切换之后的工作模式相对应。假设,当前工作位置处的输出头100是输出头a,其初始的工作模式为工作模式1,当用户触发功能切换单元300,可将工作模式1切换至工作模式2,控制器400则将输出头a与工作模式2相关联,输出头a可以在工作模式2下作业。
需要说明的是,功能切换单元300的可操作性输入方式可为机械式输入,也可为触屏式输入。当功能切换单元300为机械式输入时,作业人员可通过手动按压、滑动或者转动等方式,输入对应的模式切换信号,以触发控制器400进行控制输出。
上述电动工具,通过输出头检测组件200检测处于工作位置处的输出头100并生成相应的检测信号,通过功能切换单元300响应于外界触发,生成模式切换信号,其中,模式切换信号用于指示对工作位置处输出头100的工作模式进行切换,控制器400则响应于模式切换信号,切换工作位置处输出头100的工作模式,并将当前的检测信号与切换之后的工作模式相互关联。即,同一个输出头100可以具有多种工作模式,当同一个输出头100处于工作位置处时,可以通过功能切换单元300对其工作模式进行切换,并将切换后的工作模式与当前检测信号相关联,由于检测信号与输出头100的位置一一对应,即实现将切换后的工作模式与当前工作位置的输出头100关联匹配,由此,无需切换输出头100即可实现工作模式的切换且确保工作位置处的输出头100与所需的工作模式准确对应,简化了操作,有效提高了电动工具的使用效率和使用便利性。
一实施例中,参照图4,电动工具还包括输出头切换单元500。输出头切换单元500分别连接各输出头100,响应于外界触发,对工作位置处的输出头100进行切换,以改变输出头检测组件的检测信号,控制器能够响应于检测信号的改变,切换工作位置处输出头的工作模式。
输出头切换单元500连接电动工具的机身,且能够相对于电动工具的机身旋转,输出头100与输出头切换单元500相对固定连接,当通过操作钮21将输出头切换单元500相对主机壳体解除锁定后,可操控输出头相对于机身旋转;或可通过如操作特定机构控制马达带动输出头实现输出头自动相对与机身旋转。输出头切换单元500相对于机身旋转时,输出头100也随之旋转,进而可对工作位置处的输出头100进行切换。当切换工作位置处的输出头100时,输出头检测组件的检测信号会发生相应变化,控制器则会根据检测信号的变化控制工作模式发生相应变化,例如,当前工作位置处的输出头100为输出头a,其对应的工作模式是工作模式1,当通过输出头切换单元500将工作位置处的输出头100切换至输出头b时,输出头检测组件200的检测信号发生变化,此时,控制器控制工作位置处输出头的工作模式由工作模式1转换为工作模式2。
在实际应用中,可以通过输出头切换单元500和功能切换单元300配合使用。例如,初始状态为输出头a位于工作位置处,其工作模式为工作模式1,即输出头a-工作模式1;①、可通过旋转输出头切换单元500,切换输出头b位于工作位置处,检测信号发生变化,切换工作模式为工作模式2,即输出头b-工作模式2;②、在初始状态的基础上,也可以触发功能切换单元300,将输出头a的工作模式切换为工作模式2,即输出头a-工作模式2;③、在②的基础上,旋转输出头切换单元500,切换输出头b位于工作位置处,此时,检测信号发生变化,切换工作模式为工作模式1,即输出头b-工作模式1;④、在③的基础上触发功能切换单元300,将输出头b的工作模式切换至工作模式2,即输出头b-工作模式2;⑤、在④的基础上触发功能切换单元300,将输出头b的工作模式切换至工作模式1,即输出头b-工作模式1。
每个输出头的工作模式不唯一,输出头与多个工作模式均可关联,通过功能切换单元或输出头切换单元可快速按需自由切换工作位置处的输出头以及工作位置处输出头的工作模式。
一实施例中,输出头检测组件包括检测元件,检测元件可以包括霍尔传感器、光传感器或接近传感器。通过上述传感器能够快速准确地检测到输出头的位置变化,并产生相应的检测信号。
具体地,参照图6,输出头检测组件200包括相匹配的第一检测元件210和第二检测元件220,当分 别将各输出头100切换至工作位置处,第一检测元件210相对于第二检测元件220发生不同程度的位置变化,第二检测元件220根据第一检测元件210所发生的不同程度的位置变化,生成不同的检测信号。
具体地,第一检测元件210与各输出头100之间的位置关系可以相对固定,即,当输出头100的位置发生变化时,第一检测元件210的位置随之变化,而第二检测元件220的位置固定不变,即,第一检测元件210相对于第二检测元件220发生位置变化,当第一检测元件210处于不同位置时,第二检测元件220可以感应到不同的信号,由此,可通过第一检测元件210和第二检测元件220的配合检测出输出头100的位置。
其中,第一检测元件210可以设置于输出头切换单元500上,第二检测元件220可以设置于机身上靠近输出头切换单元500的位置。
作为替换,第二检测元件220与各输出头100之间的位置关系可以相对固定,即,当输出头100的位置发生变化时,第二检测元件220的位置随之变化,而第一检测元件210的位置固定不变,即,第一检测元件210相对于第二检测元件220发生位置变化,当第二检测元件220处于不同位置时,第二检测元件220可以感应到不同的信号,进而检测出输出头100的位置。
其中,第二检测元件220可以设置于输出头切换单元500上,第一检测元件210可以设置于机身上靠近输出头切换单元500的位置。
一实施例中,第一检测元件210包括磁铁,第二检测元件220包括霍尔传感器或接近传感器。当磁铁与霍尔传感器/接近传感器处于不同距离时,霍尔传感器或接近传感器检测到的信号不同,通过霍尔传感器/接近传感器与磁铁的配合使用,简化了位置检测过程,且结构较为简单,易于实施。
霍尔传感器/接近传感器的检测信号包括低电平和高电平,例如,当低电平时,输出头a位于工作位置处,当高电平时,输出头b位于工作位置处,则具有两种关联方式:高电平对应工作模式1,低电平对应工作模式2,或者低电平对应工作模式1,高电平对应工作模式2。
另一实施例中,第一检测元件210包括光源,能够不间断地发射光束,所述光源包括如半导体光源、发光二极管、激光二极管、红外发射二极管等;第二检测元件220包括光传感器,能够接收和检测光。当光源与光传感器处于不同位置时,光传感器根据是否接收到光或接收到的光的强度能检测到不同的信号,从而简单地实现了位置检测。
需要说明的是,输出头检测组件200有多种,只需满足输出头100交替切换时,能通过输出头检测组件200同步改变电动工具10的工作模式即可。
一实施例中,功能切换单元还能够响应于外界触发,生成用于指示对工作位置处输出头的工作扭矩进行切换的扭矩切换信号,控制器能够响应于扭矩切换信号,切换工作位置处输出头的工作扭矩。在某些工作模式下,具有设置工作位置处输出头的扭矩的需求,本实施例中,可以通过功能切换单元对工作位置处输出头的工作扭矩进行切换。具体地,用户可按照预设规则触发功能切换单元,进而可生成对应于具体扭矩值的扭矩切换信号,当控制器检测到相应的扭矩切换信号,即可将工作位置处输出头的工作扭矩调节至相应的扭矩值。
一实施例中,功能切换单元包括第一切换区310和第二切换区320,输出头的工作模式包括第一模式和第二模式,第一切换区310和第二切换区320分别对应于第一模式和第二模式。本实施例中,通过触发第一切换区310,可以将工作位置处输出头调整为第一模式,通过触发第二切换区320,可以将工作位置处输出头调整至第二模式。各切换区分别对应各工作模式,利于操作,不易出错。
本实施例中,功能切换单元300包括对应于各工作模式的触发按键,例如,第一切换区310包括第一按键311,第一按键311能够响应于外界触发生成模式切换信号,以供工作位置处输出头的工作模式切换为第一模式,第二切换区320包括第二按键321,第二按键321能够响应于外界触发生成模式切换信号, 以供工作位置处输出头的工作模式切换至第二模式。
例如,工作模式1具有对应的触发按键,工作模式2具有对应的触发按键,若需要切换当前工作位置处输出头100的工作模式为工作模式1或2,仅需触发工作模式1或2对应的触发按键即可。当然,触发按键也可以仅设置一个,通过对触发按键执行不同的触发操作实现对不同工作模式的切换,例如,不同的按压次数对应不同的工作模式,或者触发按键采用旋钮形式,不同的旋转角度对应不同的工作模式等。触发按键的设置方式可以有多种,本实施例仅列举以上几种,其他类似实现方式同样适用,在此不一一列举。
本实施例中,第一按键311还能够响应于外界触发生成扭矩切换信号,以供工作位置处输出头改变工作扭矩。即,第一模式下,存在设置输出头扭矩的需求,通过触发第一按键311,即可生成扭矩切换信号,便于扭矩的设置。可通过点按或长按第一按键311的方式实现对输出扭矩的调整。
另外,为了便于对扭矩的设置和查看,功能切换单元300的第一切换区310还包括显示区330,显示区用于显示当前扭矩值或扭矩档位。参照图4和5,显示区330内可以设置数码管335,通过数码管335显示当前扭矩。
本实施例中,如图4和5所示,第一切换区310与第二切换区320依次沿主机壳体纵轴方向设置,具体地,第一按键311、第二按键321与显示区330线性布置于主机壳体12的顶部。机身靠近输出头100的前部位置,机身的径向尺寸做小,电动工具的可接近性就相对更好,比较能进入狭窄的空间,本实施例的第一按键311、第二按键321、显示区330沿主机壳体的纵向轴线一字并列排开,这样的设置适合于可接近性好的机身设置。
一实施例中,为了便于用户确定处于工作位置上输出头100所处于的工作模式,以及能够精准、快速地将电动工具调至所需使用的工作模式,功能切换单元还包括对应于各工作模式的指示灯,指示灯用于指示当前工作位置处输出头100的工作模式。
具体地,该指示灯的实施方式可以有多种,可以在机身上切换区以外的预设区域设置多个指示灯,各指示灯分别对应各工作模式,当进入某工作模式时,控制其对应的指示灯亮;也可以仅设置一个指示灯,其可以显示不同的颜色,各颜色分别对应各工作模式,当进入某工作模式时,控制该指示灯显示对应的颜色。触发按键上设有表征各工作模式的标识或图案。触发按键可以设置成薄膜按键,操作的灵敏度及手感较好。还可以将触发按键的表面设置为透明,在其下方设置指示灯,当触发按键为多个,分别对应各工作模式,当某触发按键被触发,则控制其下方的指示灯亮起;当其下方的指示灯亮时,点亮对应的表征工作模式的标识或图案。当触发按键为一个,通过对触发按键执行不同的触发操作实现对不同工作模式的切换时,可以在其下方仅设置一个指示灯,其可以显示不同的颜色,各颜色分别对应各工作模式,当进入某工作模式时,控制该指示灯显示对应的颜色。
对工作模式对应设置指示灯,设置数码界面清晰显示扭矩,在光线不足的场所,用户也容易看清,便于用户设定。
其中,指示灯可以采用LED灯。
一实施例中,第一模式为螺丝批模式,第二模式为钻模式。显示区用于在当前工作模式为螺丝批模式下时,显示电动工具的输出扭矩。当处于螺丝批模式下时,输出扭矩可调,因此当进入螺丝批模式时,可在显示区内显示其当前的输出扭矩,以便用户知晓当前扭矩。
本实施例中,当工作位置处输出头的工作模式为螺丝批模式时,触发钻模式对应的按键时可使工作位置处输出头进入钻模式;当工作位置处输出头的工作模式为钻模式时,触发钻模式对应按键或螺丝批模式对应按键时均可使工作位置处输出头进入螺丝批模式,即,当工作位置处输出头的工作模式为钻模式时,触发钻模式对应按键具有取消钻模式的功能。
一实施例中,控制器400还响应于电动工具停机,获取当前的检测信号和工作位置处输出头100的工 作模式,并存储工作关联状态,即检测信号和工作模式的关联关系。
当控制器判定电动工具停机时,控制器主动对当前的状态信息进行收集和存储,具体为获取当前的检测信号和工作位置处输出头100的工作模式,并将其相互关联以及存储,由此可在正式断电前对断电前输出头100最后的关联状态进行存储,以便下次启动后可直接调用存储好的关联状态,快速知晓输出头100的状况,以便准确对输出头100或工作模式进行调节,适应当前作业需求。
本实施例中,若某工作模式下,具有设置的扭矩,控制器在存储工作关联状态的同时,还可以对当前扭矩的数值一并进行存储,以便下次上电后,可快速确定输出头的扭矩信息。
需要说明的是,当控制器存储工作关联状态时,可以存储一组关联关系,也可以存储多组关联关系。例如,检测信号可以包括第一信号和第二信号,工作模式包括第一模式和第二模式,当前的检测信号为第一信号,工作位置处输出头的工作模式为第一模式,即,第一信号对应第一模式,第二信号对应第二模式。控制器可仅存储一组第一信号与第一模式之间的关联关系,或一组第二信号与第二模式之间的关联关系,还可以同时存储两组关联关系。同样地,当检测信号的种类和工作模式的种类更多时,关联关系存在更多组,控制器可仅存储部分关联关系,只需满足控制器可根据存储的部分关联关系推断出其余关联关系即可实现本申请的目的,由此可释放控制器内部存储空间,节约资源。
其中,控制器可以在检测到电动工具的工作状态参数满足预设条件时,判断电动工具停机,工作状态参数可以包括电压、电流、温度、电机转速、电机停止时长中的至少一种。
在实际应用中,电动工具停机时并不一定会产生确定的停机信号,因此,控制器可以对电动工具是否停机进行判别,由于当电动工具处于停机状态时,某些工作状态参数会相对于运行状态时发生明显的变化,例如电流电压下降、温度降低、电机停止运转等,基于此,控制器可通过采集和分析上述工作状态参数,进而推断出电动工具是否停机。
一实施例中,控制器还用于在电动工具上电后,读取预存储的工作关联状态。当控制器检测到电动工具上电后,其能够获取到上一次断电之前存储的工作关联状态,进而对工作位置处输出头的状态进行准确判别。
本申请实施例还提供了一种电动工具的控制方法,电动工具包括至少两个输出头100。该电动工具的控制方法适用于前述实施例所提供的电动工具,也适用于其他类似结构的电动工具。
参照图7,一实施例中,电动工具的控制方法包括以下步骤:
步骤S200、检测工作位置处的输出头100并生成检测信号,检测信号与输出头的工作模式相关联,不同的输出头100位于工作位置处时,对应的检测信号不同。
步骤S400、响应于外界触发,生成用于指示对工作位置处输出头100的工作模式进行切换的模式切换信号。
步骤S600、响应于模式切换信号,切换工作位置处输出头100的工作模式,并将检测信号与切换之后的工作模式相关联。
本实施例所提供的电动工具的控制方法与前述实施例所提供的电动工具属于同一发明构思,关于电动工具的描述以及上述步骤可参见前述实施例中的具体内容,在此不再赘述。
上述电动工具的控制方法,检测工作位置处的输出头100并生成相应的检测信号,响应于外界触发,生成模式切换信号,其中,模式切换信号用于指示对工作位置处输出头100的工作模式进行切换,响应于模式切换信号,切换工作位置处输出头100的工作模式,并将当前的检测信号与切换之后的工作模式相互关联。即,同一个输出头100可以具有多种工作模式,当同一个输出头100处于工作位置处时,可以对其工作模式进行切换,并将切换后的工作模式与当前检测信号相关联,由于检测信号与输出头100的位置一一对应,即实现将切换后的工作模式与当前工作位置的输出头100关联匹配,由此,无需切换输出头100 即可实现工作模式的切换且确保工作位置处的输出头100与所需的工作模式准确对应,简化了操作,有效提高了电动工具的使用效率和使用便利性。
一实施例中,电动工具的控制方法还包括:
检测到上电后,读取预先存储的工作关联状态,工作关联状态用于表征检测信号与工作模式的关联关系;
根据检测信号与工作关联状态,确定工作位置处输出头100的工作模式;
响应于模式切换信号,切换工作位置处输出头100的工作模式,并将检测信号与切换之后的工作模式相关联,更新工作关联状态。
在传统方案中,电动工具断电之后,若输出头100发生切换,因电动工具的控制板未通电,即使切换了输出头100,工作模式是无法随输出头100位置的切换而对应发生变化的,重新上电时,当前工作位置处输出头100可能与断电前不一致,易误导操作人员进而发生操作失误。为了明确上电后当前工作位置处输出头100及其工作模式,本实施例在检测到上电后,调用预先存储的关于检测信号与工作位置处输出头100的工作关联状态,再获取当前的检测信号,由此可确定当前工作位置处输出头100及其工作模式。若后续使用过程中,检测到模式切换信号,再对工作关联状态进行更新。
一实施例中,电动工具的控制方法还包括:控制指示灯开启,用以指示工作位置处输出头100的工作模式。
上电后当前工作位置处输出头100及其工作模式,本实施例在检测到上电后,调用预先存储的关于检测信号与工作位置处输出头100的工作关联状态,再获取当前的检测信号,由此可确定当前工作位置处输出头100及其工作模式。若后续使用过程中,检测到模式切换信号,再对工作关联状态进行更新。
一实施例中,检测信号包括霍尔信号、光信号或接近信号,检测信号包括第一信号和第二信号,工作模式包括第一模式和第二模式。检测信号与工作模式的工作关联状态包括:第一信号对应第一模式,第二信号对应第二模式;或者,第一信号对应第二模式,第二信号对应第一模式。
假设,上电后获取到的工作关联状态为第一信号对应第一模式,第二信号对应第二模式,其中,第一信号对应的是输出头a处于工作位置,第二信号对应的是输出头b处于工作位置。当前的检测信号为第一信号,那么则可判定当前处于工作位置的是输出头a,处于第一模式。
一实施例中,当检测到模式切换信号,则对当前工作位置处输出头100的工作模式进行切换,并将切换后的工作模式与当前检测信号相关联,更新工作关联状态的步骤包括:
当检测到第一模式对应的模式切换信号时,控制当前工作位置处输出头100的工作模式进入第一模式,并将第一模式与当前检测信号相关联。
当检测到第二模式对应的模式切换信号时,控制当前工作位置处输出头100的工作模式进入第二模式,并将第二模式与当前检测信号相关联。
需要说明的是,当确定当前工作位置处输出头100的工作模式为第二模式时,当检测到第一模式或第二模式对应的模式切换信号时,均可将当前工作位置处输出头100的工作模式由第二模式切换至第一模式。
其中,第一模式可以为螺丝批模式,第二模式可以为钻模式。
一实施例中,在根据当前检测信号与工作关联状态,确定当前工作位置处输出头100的工作模式的步骤之后,电动工具的控制方法还包括:
当确定当前工作位置处输出头100的工作模式为第一模式,当检测到输出头100切换信号时,将切换后工作位置处输出头100的工作模式切换为第二模式;
当确定当前工作位置处输出头100的工作模式为第二模式,当检测到输出头100切换信号时,将切换后工作位置处输出头100的工作模式切换为第一模式。
即,除了通过功能切换单元300切换当前工作位置处输出头100的工作模式之外,还可以通过输出头切换件500切换输出头100的方式,切换工作位置处的输出头100及其工作模式。两种方式可配合使用。
一实施例中,在根据当前检测信号与工作关联状态,确定当前工作位置处输出头的工作模式的步骤之后,电动工具的控制方法还包括:
当确定当前工作位置处输出头的工作模式为第一模式时,当检测到第一模式对应的扭矩切换信号,控制切换工作位置处输出头100的工作扭矩。
一实施例中,在根据当前检测信号与工作关联状态,确定当前工作位置处输出头100的工作模式的步骤之后,电动工具的控制方法还包括:控制指示灯开启,用以指示当前工作位置处输出头100的工作模式。
一实施例中,电动工具的控制方法还包括:当确定当前工作位置处输出头100的工作模式为第一模式时,控制显示区330开启,用以指示当前工作位置处输出头的工作扭矩。
一实施例中,电动工具的控制方法还包括:
当判断电动工具停机时,确定当前检测信号,以及当前工作位置处输出头100的工作模式;
存储工作关联状态。一实施例中,电动工具的控制方法还包括:当判断电动工具停机时,存储第一模式下的工作扭矩。
一实施例中,电动工具的控制方法还包括:
检测电动工具的工作状态参数;当工作状态参数满足预设条件时,判断电动工具停机,工作状态参数包括电压、电流、温度、电机转速、电机停止时长中的至少一种。
例如,当检测到电压或电流或温度或电机转速低于相应数值时,判断电动工具停机,或,当检测到电机停止时长达到相应时长时,判断电动工具停机。
下面结合图8,以一个具体示例对本实施例提供的控制方法进行说明:
步骤1、电动工具上电后,读取预存的检测信号与工作模式的关联关系,并结合当前检测信号,确定工作位置处的输出头是否为螺丝批模式;若为螺丝批模式,则执行步骤2,若为钻进模式,则执行步骤3;
步骤2、点亮螺丝批模式对应的指示灯,熄灭钻进模式对应的指示灯,同时,控制数码管显示预存的螺丝批模式下的扭矩;
在螺丝批模式下,点按螺丝批模式对应的按键,数码管显示的扭矩档位加1,或者长按螺丝批模式对应的按键,数码管显示的扭矩档位持续加1,直到松开按键;其中,数码管的显示值范围可在1-9之间变化;或者,数码管显示具体的扭矩值,通过长按或短按对应的按键,实现对扭矩值的调节。
在螺丝批模式下,通过点按钻进模式对应的按键或者旋转输出头,使工作位置处的输出头可进入钻进模式;
步骤3、点亮钻模式对应的指示灯,熄灭螺丝批模式对应的指示灯以及数码管;
在钻进模式下,通过点按螺丝批/钻进模式对应的按键或者旋转输出头,使工作位置处的输出头可进入螺丝批模式;
步骤4、检测到电机停机15s后,获取工作位置处输出头的工作模式,判断是否为螺丝批模式,若为螺丝批模式,获取当前霍尔信号,判断霍尔信号是否为低电平,若为低电平,则存储螺丝批模式-低电平的关联关系,若为高电平,则存储螺丝批模式-高电平的关联关系;若为钻进模式,获取当前霍尔信号,判断霍尔信号是否为低电平,若为低电平,则存储钻进模式-低电平的关联关系,若为高电平,则存储钻进模式-高电平的关联关系。
步骤5、存储完工作模式与检测信号的关联关系后,自动断电。
图9为另一实施例的电动工具的控制界面示意图。参照图9所示,本实施例中,功能切换单元300’包括沿与主机壳体纵轴方向相垂直的横向并列设置的第一按键311’、以及第二按键321’,且第一按键 311’上设有螺丝批头的图案,第二按键321’上设有钻头图案。第一按键311’及第二按键321’下方分别设有对应于第一按键311’的第一工作指示灯,以及对应于第二按键321’的第二工作指示灯,其中第一工作指示灯和第二工作指示灯均为LED背光灯。
具体地,参照图10-图11所示,当按压第一按键311’时,电动工具响应于外界触发生成模式切换信号,以供工作位置处输出头的工作模式切换至螺丝批模式,螺丝批头图案对应点亮,即第一工作指示灯亮,控制器将工作位置处的输出头的检测信号与螺丝批模式关联;当按压第二按键321’,电动工具响应外界触发生成模式切换信号,以供工作位置处输出头的工作模式切换至钻模式,钻头图案对应点亮,即第二工作指示灯亮,控制器将工作位置处的输出头的检测信号与钻模式关联。特别的,当再次按压第二按键321’时,电动工具切换工作位置输出头的工作模式至螺丝批模式,即取消钻模式,并进入螺丝批模式,螺丝批头图案点亮,同时钻头图案的LED灯熄灭,工作关联状态对应更新。
一实施例中,螺丝批模式下,第一按键311’还集成了扭矩调节的功能,具有对输出轴的扭矩进行设定的功能,短按第一按键311’,可以调节扭矩档位,长按可以使扭矩连续调节。扭矩档位或扭矩值以数字方式直接以被点亮的方式显示于数码管335’上,数码管335’可以由透明的标贴膜覆盖。
本实施例中的电动工具采用的控制逻辑,与前述实施例中一致,此处不再赘述。
图12为另一实施例的电动工具的控制界面示意图。如图12所示,本实施例中,功能切换单元300”至少包括第一按键315,能够响应于外界触发生成模式切换信号,用于切换电动工具的工作模式。
功能切换单元300”还包括指示件316。指示件316与控制器400电性连接,指示件316用于指示电动工具10当前所处的工作模式。如此,通过指示件316,明确处于工作位置上的输出头100目前对应何种工作模式,便于作业人员准确、快速将电动工具10调至所需工作模式,以使作业人员快速完成钻孔或者拧螺丝操作。
需要说明的是,指示件316可为指示灯,也可为显示屏,还可为其他指示物件,比如:电致变色聚合物等。其中,当指示件316为指示灯(例如LED灯)时,通过灯亮、灯灭方式来指示当前的工作模式。比如:灯亮时当前的工作模式为钻模式,灯灭时当前的工作模式为螺丝批模式。当然,指示件316的数量可为一个、二个、三个或者更多数量。当指示件316为多个时,多个指示件316均可为指示灯或者显示屏;或者,一部分指示件316为指示灯,另一部分指示件316为显示屏。
进一步地,指示件316包括第一指示件3161和第二指示件3162。电动工具10处于钻模式时,第一指示件3161处于工作状态。电动工具10处于螺丝批模式时,第二指示件3162处于工作状态。由此可知,其中一个指示件316用于指示配接的输出头100是否处于钻模式,另一个指示件316用于指示配接的输出头100是否处于螺丝批模式。
本实施例中,电动工具10还包括与控制器电性连接的扭矩调节件113,其中控制器400与功能切换单元300”电性连接。
与前述实施例不同的是,本实施例中,仅设置了一个第一按键315,用于切换工作模式,具体地,按压第一按键315,则进入另一工作模式,并更新工作位置处输出头的检测信号与工作模式的工作关联状态;此外,扭矩调节件113,用于单独调节工作位置处输出头100的输出扭矩,指示灯与数码管的设置与工作逻辑,请参见前述实施例,此处不再赘述。
具体地,功能切换单元300响应于外界触发生成模式切换信号,控制器400根据模式切换信号将电动工具设定为钻模式或螺丝批模式;具体地,当电动工具处于钻模式时,钻模式指示灯亮,触发第一按键315生成模式切换信号,切换与输出轴130配接的输出头100即处于工作位置上的输出头100的工作模式为螺丝批模式,同时熄灭钻模式指示灯,点亮螺丝批模式指示灯,将输出头检测组件当前的检测信号与螺丝批模式对应关联;对应地,当电动工具处于螺丝批模式时,再次触发第一按键315生成模式切换信号,切换 处于工作位置上的输出头100的工作模式为钻模式,同时熄灭螺丝批模式指示灯,点亮钻模式指示灯,将输出头检测组件当前的检测信号与钻模式对应关联。
在其中的一个实施例中,当电动工具处于钻模式时,与输出轴130配接的输出头100输出恒定扭矩,当电动工具10处于螺丝批模式时,扭矩调节件113可操作地在预设范围内调节输出轴130的输出扭矩;本实施例的扭矩调节件113设置成旋转调节的扭矩控制圆盘,上面设置有对应扭矩大小的数值或档位值,在螺丝批模式下,方便操作者根据需要调节出所要的扭矩值或扭矩档位。
本实施例中的电动工具的机构设置,与前述实施例中一致,此处不再赘述。
本申请实施例还提供了一种电动工具,参考图1-3所示,电动工具包括:壳体12、马达15、输出轴130、工作组件120及控制装置。控制装置包括功能切换单元300、以及与功能切换单元300电性连接的控制器400。功能切换单元300用于输入模式切换信号,控制器400根据接收到的模式切换信号将电动工具10设定为钻模式或螺丝批模式。当电动工具10处于钻模式时,处于工作位置的输出头100输出恒定扭矩。当电动工具10处于螺丝批模式时,处于工作位置的输出头100的输出扭矩在预设范围内可调节;对应任一处于工作位置的输出头100,功能切换单元300可操作地使电动工具10在钻模式与螺丝批模式之间切换。
上述的电动工具10,在使用过程中,切换输出头100,使得输出头100择一与输出轴130配接处于工作位置,从而保证马达15能通过输出轴130驱使输出头100旋转,以进行钻孔或者拧螺丝作业。由于本电动工具10中集成有功能切换单元300,因此,当作业人员需在不同工作模式下进行操作时,作业人员可通过功能切换单元300在电动工具10中操作性输入(例如:按压、滑动、转动等方式)对应的模式切换信号。控制器400根据接收的模式切换信号,控制电动工具10设定为所需工作模式(如:钻模式或者螺丝批模式),以实现任一输出头100均不限于一种工作模式。如此,使得作业人员在作业过程中,无需频繁切换输出头100的位置,有效简化电动工具10的操作,提高工作效率。另外,当需打不同大小的孔或者拧不同型号的螺钉时,可预先在至少两个输出头100上安装不同型号的钻头或者螺丝批,这样在使用时,只需切换输出头100位置,并通过功能切换单元300输入对应模式切换信号以保证电动工具10始终处于所需工作模式,即可完成打不同大小的孔或者拧不同型号的螺钉的操作,无需频繁更换工作附件,进一步提升产品的操作体验感。
在一实施例中,当电动工具10处于不同工作模式时,处于工作位置上的输出头100的输出扭矩可处于恒定状态,也可为在预设范围内调节。而这两种扭矩输出的实现方式可利用对马达15的输入功率控制实现,比如:控制器400接收到模式切换信号时,改变电动工具10内的控制电路,以影响马达15中输入功率,实现马达15的输出扭矩的改变。比如:控制器400为单片机,单片机上集成有驱动模块。当单片机接收模式切换信号时,驱动模块向功率模块发送MOS驱动信号,如通过调节占空比的方式等实现不同功率的输出。由于单片机与马达15之间的电路并非为本实施例所改进的对象,因此,其具体电路在此不再赘述。另外,本实施例的功能切换单元300应理解为至少包括操作部件以及与操作部件关联的检测、控制等部件,其具体结构可有多种设计,只要满足触发电动工具10在钻模式和螺丝批模式之间切换均可。
还需说明的是,电动工具10的工作模式至少包括钻模式和螺丝批模式。其中,钻模式和螺丝批模式为在电动工具10中预先设定好的,比如:当电动工具10切换至钻模式时,处于工作位置上的输出头100的输出扭矩为恒定扭矩。当电动工具10切换至螺丝批模式时,处于工作位置上的输出头100的输出扭矩可在预设范围内进行调节。其中,预设范围可根据实际产品而定。
电动工具10还包括与控制器400电性连接的扭矩调节件。当电动工具10切换至螺丝批模式时,扭矩调节件被激活。其中,需要说明的是,电动工具10切换至螺丝批模式方式可不限于自动切换还是手动切换,只要电动工具10处于螺丝批模式时,扭矩调节件即可被触发。当扭矩调节件被激活时,作业人员可通过扭矩调节件在预设范围内设定输出头100的输出扭矩,以满足不同扭力下的拧螺丝作业。
需要说明的是,扭矩调节件的调节方式可为旋转方式,也可为按压方式等。如图12中,扭矩调节件113为独立设置的旋钮,当扭矩调节件113为旋转调节方式时,扭矩调节件113可为拨盘式电位器设备等。如图9中,进入螺丝批模式时,第一按键311’用作扭矩调节件被激活,能够响应于外界触发/按压调节输出头的工作扭矩。
还需说明的是,扭矩调节件在调节过程中,可设置一个或者多个档位。比如:扭矩调节件激活后,每触发一次即可对处于工作位置上的输出头100输出扭矩进行一次调节。以九档位为例,扭矩调节件激活后,每次触发,输出扭矩的档位数值可从1档~9档依次递增调节(当然,在其他实施例中也可依次递减调节),当档位数值为9档时,再次触发,其档位数值可循环复位至1档。
在一实施例中,参照图1、2所示,电动工具10包括设置于马达15与输出轴130之间的齿轮传动机构155、以及相对壳体12可在第一位置与第二位置之间移动的档位调节件150。当电动工具10处于钻模式,且档位调节件150处于第一位置时,齿轮传动机构155具有第一传动比,处于工作位置的输出头100能输出第一恒定转速。当电动工具10处于钻模式,且档位调节件150处于第二位置时,齿轮传动机构155具有第二传动比,处于工作位置的输出头100能输出第二恒定转速。由此可知,当电动工具10处于钻模式时,处于工作位置的输出头100的输出至少有两种转速调节。当档位调节件150移动至第一位置时,改变齿轮传动机构155的传动比,使其为第一传动比,使得处于工作位置的输出头100以第一恒定转速进行输出。同样,当档位调节件150移动至第二位置时,使得齿轮传动机构155的传动比调节为第一传动比,使得处于工作位置的输出头100以第二恒定转速进行输出。
需要说明的是,档位调节件150的移动方式可为但不仅限于滑动方式、旋转方式、按压方式等。
进一步地,请参考图13与图14,齿轮传动机构155包括太阳轮1550、装设于太阳轮1550上的第一行星轮1551、套设于第一行星轮1551上的调速齿圈1552,调速齿圈1552在太阳轮1550的轴向上具有第一位置和第二位置,调速齿圈1552位于第一位置时,调速齿圈1552同时啮合于太阳轮1550和第一行星轮1551,调速齿圈1552位于第二位置时,调速齿圈1552啮合于第一行星轮1551,并脱离太阳轮1550,调节件与调速齿圈1552传动配合。如此,在调节过程中,当调速齿圈1552位于第一位置上时,调速齿圈1552同时啮合于太阳轮1550的齿轮盘和第一行星轮1551上,此时,马达15上的旋转通过调速齿圈1552直接传递至太阳轮1550上(即调速齿圈1552为可旋转状态);当调速齿圈1552位于第二位置上时,调速齿圈1552脱离太阳轮1550(即调速齿圈1552在减速箱1553的限制下为不能旋转状态),此时,马达15上的旋转只能传递至第一行星轮1551上,使得第一行星轮1551在调速齿圈1552内进行公转,带动太阳轮1550转动,从而使得马达15的输出动力降低,实现减速效果。
需要说明的是,本实施例的齿轮传动机构155可由多级星轮组件构成。同时,在减速过程中,可实现两级减速、三级减速或者更多级减速效果等。
更进一步地,请参考图13,齿轮传动机构155还包括减速箱1553、及设置于减速箱1553内的第一行星架1554、第二行星轮1555、第一内齿圈1556、第二行星架1557、第三行星轮1558和第二内齿圈1559。第一内齿圈1556套设、并啮合于第二行星轮1555。第一内齿圈1556相对减速箱1553为固定状态。第二行星轮1555装设于第一行星架1554上。第一行星架1554的输出轴130啮合于第一行星轮1551中。第二内齿圈1559套设、并啮合于第三行星轮1558。第二内齿圈1559相对减速箱1553为固定状态。第三行星轮1558装设于第二行星架1557上。第二行星架1557与输出轴130传动连接。
在一个实施例中,请参考图1,壳体12上设有滑槽112。档位调节件150位于滑槽112中,并与调速齿圈1552传动配合。档位调节件150在滑槽112内能沿着输出轴130的轴线方向来回移动。如此,当作业人员需调节电动工具10的输出转速时,只需来回拨动档位调节件150即可。
在一个实施例中,请参考图1,控制装置还包括用于检测档位调节件150的检测装置170。检测装置 170与控制器400电性连接。当档位调节件150处于第一位置时,检测装置170发出第一检测信号,当档位调节件150处于第二位置时,检测装置170发送第二检测信号,第一检测信号不同于第二检测信号,即通过检测装置170可准确识别档位调节件150具体所处位置,以便控制装置能对马达15的输出扭矩作出相应的调节。
需要说明的是,检测装置170为能检测处于第一位置或者第二位置上的档位调节件150,并能向控制器400发送具有足够识别的电信号的设备。比如:检测装置170可为霍尔传感器和两个磁极正反布置的磁铁;又或者可为其他传感设备,例如压敏传感设备、光敏传感设备等。对此,本实施例不作具体限定,只需能检测第一位置或者第二位置上的档位调节件150,并能发送第一检测信号和第二检测信号均可。
进一步地,当电动工具10处于钻模式时,控制器400根据第一检测信号控制马达15输出第一恒定扭矩,根据第二检测信号控制马达15输出第二恒定扭矩。第一恒定扭矩不同于第二恒定扭矩。当电动工具10处于螺丝批模式时,控制器400根据第一检测信号,控制马达15的输出扭矩在第一预设范围可调,根据第二检测信号,控制马达15的输出扭矩在第二预设范围内可调,第一预设范围不同于第二预设范围。
由此可知,档位调节件150在调节齿轮传动机构155的传动比的同时,马达15输出扭矩也同步发生对应改变。当电动工具10处于钻模式时,档位调节件150在第一位置和第二位置之间移动,以改变齿轮传动机构155的传动比的同时,检测装置170向控制器400发送对应的检测信号(即第一检测信号和第二检测信号)。此时,控制器400控制马达15输出对应的恒定扭矩(即第一恒定扭矩和第二恒定扭矩),从而保证处于工作位置上的输出头100能以不同转速输出。
同样,当电动工具10处于螺丝批模式时,档位调节件150在第一位置和第二位置之间移动,以改变齿轮传动机构155的传动比的同时,检测装置170向控制器400发送对应的检测信号(即第一检测信号和第二检测信号)。此时,控制器400控制马达15的输出扭矩能在对应的预设范围内进行调节(即第一预设范围和第二预设范围),从而保证处于工作位置上的输出头100的转速在对应的范围内调节输出。
需要说明的是,输出头检测组件200有多种,只需满足输出头100交替切换时,能通过输出头检测组件200同步改变电动工具10的工作模式即可。
还需说明的是,为了提高信号的识别精度,以霍尔传感器为例,可在每个输出头100对应的位置区域设置磁铁,且相邻两个磁铁的磁极相反设置,即一个为北极朝上,另一个为南极朝上。当不同的输出头100切换至工作位置时,霍尔传感器能获取不同的感应信号,以使得电动工具10处于对应的工作模式。
一实施例中,参考图3,电动工具10还包括操控机构20。操控机构20用于控制工作组件120相对壳体12锁定或者释放。如此,当输出头100之一旋转至工作位置上时,通过操控机构20使得输出头100与输出轴130发生配接,并锁定在壳体12上,以便马达15将动力传递至输出头100上。当需更换输出头100时,再次利用操控机构20,解除当前的输出头100与输出轴130的配接、以及与壳体12的锁定释放。
进一步地,请参考图2a至图2d,操控机构20包括操作钮21、以及与操作钮21联动的离合套161。离合套161套设于输出轴130上。操作钮21活动设置于壳体12上,操作钮21运动时,能驱使离合套161沿着输出轴130的轴线方向移动,以使离合套161与输出头100的工作轴配接的同时将工作组件120相对壳体12锁定,或者离合套161与输出头100的工作轴脱离配接的同时将工作组件120相对壳体12释放锁定。请参考图2a与图2c,当作业人员需更换输出头100时,触发操作钮21运动,驱使离合套161沿着输出轴130的轴线方向远离工作组件120移动,使之与输出头100发生脱离配接的同时将工作组件120与壳体12解除锁定。此时,作业人员可将所需输出头100切换至工作位置上;请参考图2b与图2d,切换后,通过松开或者反向触发操作钮21,使得离合套161沿着输出轴130的轴线方向靠近工作组件120移动,从而使得离合套161与所需的输出头100配接,并将工作组件120与壳体12锁定。其中,工作组件120与壳体12之间的锁定或者解除锁定可利用卡扣方式实现,比如:工作组件120上设有弹性卡钩结构,壳体 12上设有卡槽结构等。
需要说明的是,操作钮21可直接连接于离合套161上,以构成一整体结构,此时,当操作钮21运动时,则直接带动离合套161一起动作。当然,操作钮21也可与离合套161间接连接,即操作钮21与离合套161之间采用中间结构进行传动。另外,本实施例的离合套161呈筒状结构。
可选地,操作钮21在壳体12上的运动方式可为转动、滑动、旋转或者按压等方式。
在一个实施例中,请参考图2c与图2d,操控机构20还包括位于壳体12内的传动件163。操作钮21通过传动件163与离合套161传动连接,即操作钮21与离合套161之间的传动为间接传动。如此,通过传动件163,使得离合套161在操作钮21的作用下更好地移动。
进一步地,请参考图2b,离合套161上设有第一扣位1611。传动件163上设有与第一扣位1611卡扣配合的第二扣位1631。
可选地,第一扣位1611为槽或者孔状结构,第二扣位1631为凸状结构;或者,第一扣位1611为凸状结构,第二扣位1631为槽或者孔状结构。
在一个实施例中,请参考图2d,操作钮21转动装设于壳体12上,且操作钮21上设有第三扣位1621。传动件163上设有与第三扣位1621卡扣配合的第四扣位1632。
可选地,第三扣位211为槽或者孔状结构,第四扣位1632为凸状结构;或者,第三扣位1621为凸状结构,第四扣位1632为槽或者孔状结构。
在一个实施例中,请参考图2b,操控机构20还包括第一复位件1622。第一复位件1622设置于操作钮21与壳体12之间,第一复位件1622用于将操作钮21恢复至初始位置。如此,当操作钮21活动以接触离合套161与输出头100之间的配接后,松开操作钮21,使得操作钮21在第一复位件212的作用下恢复至初始位置,以带动离合套161也同步恢复至初始位置。
可选地,第一复位件1622可为弹簧、弹性橡胶或者弹性金属片等。
具体地,请参考图2b,第一复位件1622为第一弹簧。
同样,在另一个实施例中,请参考图2b,操控机构20还包括第二复位件1612。第二复位件1612设置于离合套161与输出轴130之间,第二复位件1612用于将离合套161恢复至初始位置。如此,松开操作钮21时,离合套161在第二复位件1612的作用下恢复至初始位置。
可选地,第二复位件1612可为弹簧、弹性橡胶或者弹性金属片等。
具体地,请参考图2d,第二复位件1612为第二弹簧。第二弹簧套接于输出轴130上,并与离合套161连接或者抵触。
在一个实施例中,电动工具10还包括与控制器400电性连接的控制开关,以实现电动工具10的启停控制。其中,为了便于理解本实施例的电动工具10中电路控制原理,可请参考图11。
在一个实施例中,请参考图2a,工作组件120还包括转动设置于壳体12上的转位体,转位体上具有转轴线,且转位体在壳体12上绕转轴线旋转。至少两个输出头100间隔设置于转位体上,至少两个输出头100相对于转轴线对称设置。
以上所述实施例的各技术特征可以进行任意的组合,为使描述简洁,未对上述实施例中的各个技术特征所有可能的组合都进行描述,然而,只要这些技术特征的组合不存在矛盾,都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。
Claims (33)
- 一种电动工具,其特征在于,包括:至少两个输出头,分别可选择的位于工作位置或非工作位置;输出头检测组件,能够检测工作位置处的输出头,并生成检测信号,所述检测信号与输出头的工作模式相关联;功能切换单元,能够响应于外界触发,生成用于指示对工作位置处输出头的工作模式进行切换的模式切换信号;控制器,连接所述输出头检测组件和所述功能切换单元,能够响应于所述模式切换信号,切换工作位置处输出头的工作模式,并能够将所述检测信号与切换之后的工作模式相关联。
- 根据权利要求1所述的电动工具,其特征在于,所述电动工具还包括:输出头切换单元,分别连接各所述输出头,响应于外界触发,对工作位置处的输出头进行切换,以改变所述输出头检测组件的检测信号,所述控制器能够响应于检测信号的改变,切换工作位置处输出头的工作模式。
- 根据权利要求1所述的电动工具,其特征在于,所述输出头检测组件包括检测元件,所述检测元件包括霍尔传感器、光传感器或接近传感器。
- 根据权利要求1所述的电动工具,其特征在于,所述功能切换单元还能够响应于外界触发,生成用于指示对工作位置处输出头的工作扭矩进行切换的扭矩切换信号,所述控制器能够响应于所述扭矩切换信号,切换工作位置处输出头的工作扭矩。
- 根据权利要求1所述的电动工具,其特征在于,所述功能切换单元包括第一切换区和第二切换区,所述输出头的工作模式包括第一模式和第二模式,所述第一切换区和第二切换区分别对应于第一模式和第二模式。
- 根据权利要求5所述的电动工具,其特征在于,所述第一切换区包括第一按键,所述第一按键能够响应于外界触发生成模式切换信号,以供工作位置处输出头的工作模式切换为所述第一模式;所述第二切换区包括第二按键,所述第二按键能够响应于外界触发生成模式切换信号,以供工作位置处输出头的工作模式切换为所述第二模式。
- 根据权利要求6所述的电动工具,其特征在于,所述第一按键还能够响应于外界触发生成扭矩切换信号,以供工作位置处输出头改变工作扭矩。
- 根据权利要求4或7所述的电动工具,其特征在于,所述功能切换单元包括显示区,用于显示当前扭矩。
- 根据权利要求1所述的电动工具,其特征在于,所述功能切换单元还包括对应于各工作模式的指示灯,所述指示灯用于指示当前工作位置处输出头的工作模式。
- 根据权利要求1所述的电动工具,其特征在于,所述控制器还用于,在电动工具上电后,读取预存储的工作关联状态,所述工作关联状态用于表征所述检测信号与工作模式的关联关系。
- 根据权利要求1所述的电动工具,其特征在于,所述控制器还响应于电动工具停机,获取当前的所述检测信号和工作位置处输出头的工作模式,存储工作关联状态,所述工作关联状态用于表征所述检测信号与工作模式的关联关系。
- 根据权利要求11所述的电动工具,其特征在于,所述控制器检测所述电动工具的工作状态参数满足预设值时,判断所述电动工具停机,所述工作状态参数包括:电压、电流、温度、电机转速、电机停止时长中的至少一种。
- 根据权利要求1所述的电动工具,其特征在于,所述工作模式包括螺丝批模式和钻模式。
- 一种电动工具的控制方法,其特征在于,所述电动工具包括至少两个输出头,所述控制方法包括:检测工作位置处的输出头并生成检测信号,所述检测信号与输出头的工作模式相关联,不同的所述输出头位于工作位置处时,对应的所述检测信号不同;响应于外界触发,生成用于指示对工作位置处输出头的工作模式进行切换的模式切换信号;响应于模式切换信号,切换工作位置处输出头的工作模式,并将所述检测信号与切换之后的工作模式相关联。
- 根据权利要求14所述的电动工具的控制方法,其特征在于,所述控制方法还包括:检测到上电后,读取预先存储的工作关联状态,所述工作关联状态用于表征检测信号与工作模式的关联关系;根据所述检测信号与所述工作关联状态,确定工作位置处输出头的工作模式;响应于模式切换信号,切换工作位置处输出头的工作模式,并将所述检测信号与切换之后的工作模式相关联,更新所述工作关联状态。
- 根据权利要求14所述的电动工具的控制方法,其特征在于,所述方法还包括:控制指示灯开启,用以指示工作位置处输出头的工作模式。
- 根据权利要求14所述的电动工具的控制方法,其特征在于,所述方法还包括:当判断所述电动工具停机时,确定当前检测信号,以及工作位置处输出头的工作模式;存储所述工作关联状态。
- 根据权利要求14所述的电动工具的控制方法,其特征在于,所述检测信号包括第一信号和第二信号,所述工作模式包括第一模式和第二模式;所述工作关联状态包括:所述第一信号对应所述第一模式,所述第二信号对应所述第二模式;或者,所述第一信号对应所述第二模式,所述第二信号对应所述第一模式。
- 根据权利要求18所述的电动工具的控制方法,其特征在于,所述第一模式为螺丝批模式,第二模式为钻模式。
- 根据权利要求18所述的电动工具的控制方法,其特征在于,所述方法还包括:当确定工作位置处输出头的工作模式为第一模式时,当检测到第一模式对应的扭矩切换信号,控制切换所述工作位置处输出头的工作扭矩。
- 根据权利要求18所述的电动工具的控制方法,其特征在于,所述方法还包括:当确定工作位置处输出头的工作模式为第一模式时,控制显示区开启,用以指示工作位置处输出头的工作扭矩。
- 根据权利要求18所述的电动工具的控制方法,其特征在于,所述方法还包括:当判断所述电动工具停机时,存储第一模式下的工作扭矩。
- 根据权利要求17或22所述的电动工具的控制方法,其特征在于,所述方法还包括:检测所述电动工具的工作状态参数;当所述工作状态参数满足预设条件时,判断所述电动工具停机,所述工作状态参数包括电压、电流、温度、电机转速、电机停止时长中的至少一种。
- 一种电动工具,其特征在于,所述电动工具包括:壳体,包括一沿纵轴线延伸的主机壳体、以及与主机壳体呈角度的手柄壳体,与所述主机壳体与手柄壳体相连部位相对的部位定义为主机壳体的顶部;马达,设置于所述主机壳体内;开关扳机,设置于所述手柄壳体,用于控制所述马达的启停;输出轴,由所述马达驱动作旋转运动;工作组件,所述工作组件包括第一输出头以及第二输出头,所述第一输出头及第二输出头可择一地与 所述输出轴配接;控制装置,所述控制装置包括功能切换单元、与所述功能切换单元电性连接的控制器;所述功能切换单元设置于所述顶部,能够响应于外界触发,生成模式切换信号,所述控制器根据接收到的模式切换信号对与所述输出轴配接的输出头的工作模式进行切换,以将电动工具设定为钻模式或螺丝批模式;当所述电动工具处于钻模式时,与所述输出轴配接的输出头输出恒定扭矩,当所述电动工具处于螺丝批模式时,与所述输出轴配接的输出头的输出扭矩在预设范围内可调节。
- 根据权利要求24所述的电动工具,其特征在于,所述主机壳体与手柄壳体于相连部位设置有操作钮,所述开关扳机紧邻所述操作钮设置;所述操作钮用于解除所述输出头相对所述主机壳体的位置锁定。
- 根据权利要求24所述的电动工具,其特征在于,所述电动工具包括设置于所述马达与所述输出轴之间的齿轮传动机构、以及相对所述主机壳体可在第一位置与第二位置之间移动、从而调节输出轴的不同转速的档位调节件,所述档位调节件位于所述顶部且靠近所述齿轮传动机构。
- 根据权利要求24所述的电动工具,其特征在于,所述功能切换单元包括至少一个按键,所述按键用于可操作地将电动工具的工作模式在钻模式与螺丝批模式之间切换。
- 根据权利要求24所述的电动工具,其特征在于,所述电动工具还包括与所述控制器电性连接的扭矩调节件,所述扭矩调节件用于可操作地调节螺丝批模式下的与所述输出轴配接的输出头的输出扭矩。
- 根据权利要求24所述的电动工具,其特征在于,所述电动工具还包括与所述控制器电性连接的扭矩调节件;所述功能切换单元包括第一按键,所述第一按键用于可操作地将所述电动工具的工作模式切换至螺丝批模式;在螺丝批模式下,所述第一按键还可用于充当所述扭矩调节件,用于调节所述输出轴配接的输出头的输出扭矩。
- 根据权利要求29所述的电动工具,其特征在于,所述功能切换单元还包括第二按键,所述第二按键用于可操作地将所述电动工具的工作模式切换至钻模式;所述第一按键与所述第二按键并列设置。
- 根据权利要求30所述的电动工具,其特征在于,所述第一按键及第二按键分别设置表征工作模式的标识或图案。
- 根据权利要求30所述的电动工具,其特征在于,所述电动工具进一步包括对应所述第一按键的第一工作指示灯,以及对应第二按键的第二工作指示灯,电动工具处于钻模式时,第一工作指示灯亮;电动工具处于螺丝批模式时,第二工作指示灯亮。
- 根据权利要求24所述的电动工具,其特征在于,所述电动工具还包括与所述控制器电连接的显示区,所述显示区用于在螺丝批模式下显示所述输出轴配接的输出头的设定扭矩。
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