Electric tool

Abstract

A power tool includes a housing including a motor housing portion, a front housing portion, a rear housing portion, and a handle portion extending from the motor housing portion. The power tool includes a motor disposed within a motor housing portion. The power tool includes a trigger on a front side of the handle portion. The power tool includes a torque adjustment interface for changing a torque setting of the power tool. The power tool includes a torque setting indicator disposed on a side of the power tool and configured to indicate a torque setting of the power tool.

Description

[0001] Related applications

[0002] This application claims the benefit of U.S. Provisional Patent Application No. 63 / 503,242, filed May 19, 2023, and U.S. Provisional Patent Application No. 63 / 509,024, filed June 19, 2023, the entire contents of each prior application are hereby incorporated by reference into this application. Technical Field

[0003] The utility model relates to an electric tool. Background Art

[0004] A power tool, or "rotary impact tool," typically includes a housing. The housing includes a motor housing portion and a handle portion. The motor housing portion typically houses a motor. In some cases, the motor's torque may be an important indicator, and it is desirable to adjust or indicate the torque as much as possible according to the user's needs. For example, in some cases, the user may wish to have the power tool provide a user-perceivable indication (e.g., a sound, a flashing light, etc.) to assist the user in positioning the power tool. Utility Model Content

[0005] In one aspect, the present invention relates to a power tool comprising a housing including a motor housing portion, a front housing portion, a rear housing portion, and a handle portion extending from the motor housing portion. The power tool includes a motor disposed within the motor housing portion, a trigger located on a front side of the handle portion, and a torque adjustment interface for changing a torque setting of the power tool. The power tool further includes a torque setting indicator disposed on a side of the power tool and configured to indicate the torque setting of the power tool.

[0006] In another aspect, the present invention relates to a power tool comprising a housing including a motor housing portion, a front housing portion, a rear housing portion, and a handle portion extending from the motor housing portion. The power tool includes a motor disposed within the motor housing portion, a trigger located on a front side of the handle portion, and a torque adjustment interface disposed between the front housing portion and the trigger for changing a torque setting of the power tool. The power tool includes a torque setting indicator disposed on a side of the power tool and comprising a set of indicators configured to indicate the torque setting of the power tool. The power tool further includes a controller configured to control the motor and connected to the torque setting indicator.

[0007] In yet another aspect, the present invention relates to a method of operating a power tool, the method including indicating a torque setting of the power tool via a torque setting indicator located on a side of the power tool and alerting a user of a clutch disengagement condition when an electronic clutch of the power tool is engaged.

[0008] Before explaining any specific embodiment in detail, it should be understood that the specific embodiments are not limited to the application of the details of the configuration and arrangement of components described below or shown in the accompanying drawings. These specific embodiments can be implemented or realized in various ways. In addition, it should be understood that the words and terms used in the present invention are for illustrative purposes and should not be regarded as restrictive. The use of "including", "comprising" or "having" and their variations is meant to cover the items listed subsequently and their equivalents as well as additional items. Unless otherwise specified or limited, the terms "mounted", "connected", "supported" and "coupled" and their use are broadly used to cover direct and indirect mounting, connection, support and coupling.

[0009] In addition, it should be understood that specific embodiments may include hardware, software, and electronic components or modules, and for the purposes of discussion, these hardware, software, and electronic components or modules may be illustrated and described as if most components were implemented only in hardware. However, based on a reading of this detailed description, one of ordinary skill in the art will recognize that in at least one specific embodiment, the electronic-based aspects may be implemented in software (e.g., stored on a non-transitory computer-readable medium) that can be executed by one or more processing units (e.g., microprocessors and / or application-specific integrated circuits ("ASICs")). Therefore, it should be noted that specific embodiments may be implemented using a plurality of hardware- and software-based devices and a plurality of different structural components. For example, the "server," "computing device," "controller," "processor," etc. described in the patent specification may include one or more processing units, one or more computer-readable media modules, one or more input / output interfaces, and various connections connecting components (e.g., a system bus).

[0010] Related terms, such as "about", "approximately", "substantially", etc., used in connection with quantities or conditions will be understood by ordinary technicians to include the values ​​and have the meaning specified by the context (for example, the term includes at least the degree of error associated with measurement precision, the tolerance associated with the specific value [for example, manufacturing, assembly, use, etc.]). Such terms should also be considered to disclose the range defined by the absolute values ​​of the two endpoints. For example, the expression "from about 2 to about 4" also discloses the range "from 2 to 4". Related terms can refer to plus or minus a percentage of the indicated value (for example, 1%, 5%, 10% or more).

[0011] It should be understood that although some of the drawings show hardware and software located within specific devices, these descriptions are for illustrative purposes only. The functions performed by one component described in the present invention can be performed in a distributed manner by multiple components. Similarly, the functions performed by multiple components can be merged and performed by a single component. In some specific embodiments, the components shown can be combined or divided into separate software, firmware and / or hardware. For example, logic and processing can be distributed between multiple electronic processors, rather than being located within and performed by a single electronic processor. Regardless of how they are combined or divided, hardware and software components can be located on the same computing device, or can be distributed between different computing devices connected by one or more networks or other suitable communication links. Similarly, components described as performing specific functions can also perform additional functions not described in the present invention. For example, a device or structure that is "configured" in a certain way is configured at least in this way, but can also be configured in a way that is not explicitly listed.

[0012] Other features and aspects of the invention will become apparent by consideration of the following detailed description and accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a perspective view of a power tool including a torque adjustment interface according to a specific embodiment of the present invention.

[0014] Figure 2 yes Figure 1 An enlarged side view of a power tool.

[0015] Figure 3 yes Figure 1 Exploded view of the dial on the torque adjustment interface.

[0016] Figure 4 yes Figure 3 A perspective view of the dial.

[0017] Figure 5 yes Figure 3 Side view of the dial.

[0018] Figure 6 It is along Figure 5 Cross-sectional side view of the dial taken along line 6-6.

[0019] Figure 7 It is along Figure 2 An enlarged view of the cross section of the impact tool taken along line 7-7.

[0020] Figure 8 yes Figure 7 A perspective view of the stopper is shown.

[0021] Figure 9According to the specific embodiment of the present utility model, Figure 1 Block diagram of a power tool controller.

[0022] Figure 10 The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0023] Figure 11 The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0024] Figure 12 The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0025] Figure 13 The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0026] Figure 14 The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0027] Figure 15 The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0028] Figure 16-24 The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0029] Figure 25 The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0030] Figure 26 The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0031] Figure 27 The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0032] Figure 28 The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0033] Figure 29 The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0034] Figure 30 The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0035] Figure 31 The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0036] Figure 32The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0037] Figure 33 The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0038] Figure 34 The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0039] Figure 35 The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0040] Figure 36 The figure shows a torque setting indication interface according to a specific embodiment of the present invention.

[0041] Figure 37 A communication system according to a specific embodiment of the present utility model is shown.

[0042] Figure 38 Shows the specific embodiment of the present invention includes Figure 37 Communication systems for power tools.

[0043] Figure 39 Shows the specific embodiment of the present invention includes Figure 38 Block diagram of the controller in the power tool.

[0044] Figure 40 A circuit diagram of a switching module according to a specific embodiment of the present utility model is shown.

[0045] Figure 41 Shows the specific embodiment of the present invention includes Figure 38 Block diagram of the wireless communication controller in the power tool.

[0046] Figure 42 Shows the specific embodiment of the present invention includes Figure 37 Block diagram of the external devices in the communication system.

[0047] Figure 43 、 44 45 show exemplary interfaces of external devices for controlling a power tool according to a specific embodiment of the present invention.

[0048] Figure 46 The flowchart for positioning a power tool according to a specific embodiment of the present invention is shown. DETAILED DESCRIPTION

[0049] Figure 1A power tool 10 is shown in the form of a rotary impact tool (e.g., an impact driver). The power tool 10 shown includes a housing 14 having a front housing portion or shell 22 enclosing a motor (e.g., a brushless DC motor; not shown), coupled to the motor housing portion 18 (e.g., by a plurality of fasteners), a handle portion 26 extending downwardly from the motor housing portion 18, and a rear housing portion 31 coupled to the motor housing portion 18 (e.g., by a plurality of fasteners). In some embodiments, the rear housing portion 31 is integrally formed with the motor housing portion 18. The handle portion 26 includes a grip 27 that can be grasped by a user. A trigger 28 is coupled to the front side of the handle portion 26 and can be actuated by the user to operate the power tool 10. In the embodiment shown, the handle portion 26 and the motor housing portion 18 are defined by mating clamshell grips 29a, 29b.

[0050] The power tool 10 has a battery receptacle 34 located at the bottom end of the handle portion 26. The battery receptacle 34 is configured to receive a battery pack (see Figure 9 ), the battery pack provides power to the motor. In other embodiments, the power tool 10 may include a power cord for electrically connecting the power tool 10 to an AC power source. As a further alternative, the power tool 10 may be configured to operate using a different power source (e.g., a pneumatic power source, etc.).

[0051] The power tool 10 includes an electronically controlled clutch mechanism that is configured to receive an electronic torque setting and limit the torque output of the power tool 10 electronically (e.g., via motor control) and / or mechanically (e.g., via an adjustable slip condition of the clutch mechanism) based on the torque setting. In the embodiment shown, the power tool 10 includes a torque adjustment interface in the form of a rotary actuator or dial assembly 32. For example, the dial assembly 32 is at least partially located within a jaw portion 30 of the power tool 10, which is defined between a front housing portion and a trigger 28. The dial assembly 32 includes one or more components that can be rotated about a rotational axis R to adjust the torque setting of the power tool 10. In the embodiment shown, the rotational axis R intersects the front housing portion 22 and the trigger 28. As shown in FIG. Figure 1 and Figure 2As shown, the dial assembly 32 is accessible from both sides and the front of the power tool 10. This allows the user to rotate the dial assembly 32 about the rotation axis R (for example, using the user's index finger) while grasping the handle 27 of the power tool 10 with the same hand, thereby facilitating one-handed or two-handed operation of the power tool 10. The power tool 10 may, in one aspect, include a set of indicators 24 (for example, LEDs) that illuminate the work surface. The set of indicators 24 may be a shadowless lamp. It is also conceivable that the set of indicators 24 changes color or flashes in various patterns associated with the torque setting (this will be further described in the present invention).

[0052] like Figure 3 and Figure 4 As shown, the dial assembly 32 includes a dial housing 36, a potentiometer 44, a circuit board 48, and a support member 52. The dial housing 36 includes a top wall 37, a center post 38 extending through the top wall 37, and an outer wall 39. A cavity 41 is defined by the top wall 37 and the outer wall 39, and a block 42 extends from the top wall 37 and the outer wall 39 into the cavity 41. The center post 38 includes a first portion 38a extending from the top surface of the dial housing 36 and a second portion 38b extending from the bottom surface of the dial housing 36. The first portion 38a is cylindrical, and the second portion 38b is generally cylindrical with a flat side 43. The second portion 38b extends through the central hole 45 of the potentiometer 44 and the central hole 49 of the circuit board 48 and is received in the central recess 53 of the support member 52. The central hole 49 of the circuit board 48 and the central recess 53 of the support member 52 are cylindrical, and the central hole 45 of the potentiometer 44 is cylindrical with a flat side 46. The support member 52 includes a plurality of bosses 54 and a retaining tab 55 extending from the top surface of the support member 52. The plurality of bosses 54 are received by the holes 50 in the circuit board 48 to secure the circuit board 48 to the support member 52. The retaining tab 55 extends through the cutout 51 in the circuit board 48.

[0053] like Figure 5 and Figure 6 As shown, the support member 52 further includes a cylindrical protrusion 56 extending from the bottom side of the support member 52. The central recess 53 extends into the cylindrical protrusion 56. A central block 57 extends from the cylindrical protrusion 56, and side blocks 58 extend from the bottom side of the support member 52. The cylindrical protrusion 56, central block 57, and side blocks 58 are received by similarly shaped recesses formed by the mating clamshell grapples 29a, 29b, and serve to secure the support member 52 and prevent rotation of the support member 52 when the dial housing 36 rotates.

[0054] See also Figure 6, the circuit board 48 and the potentiometer 44 are each housed within the interior of the dial housing 36. The support member 52 is also at least partially housed within the dial housing 36. This allows the dial assembly 32 to have a compact overall height in the direction of the rotational axis R, allowing the dial assembly 32 to fit within the limited space available at the jaw portion 30 while maximizing the available surface area of ​​the dial housing 36 for user operation. In some embodiments, the overall height of the dial assembly 32 along the rotational axis R is between 5 mm and 8 mm, or in some embodiments, between 6 mm and 7 mm.

[0055] During operation, the user rotates the dial housing 36 about the rotation axis R. The second portion 38b and the central aperture 45 of the potentiometer 44 are similarly shaped, so that the flat side 43 of the second portion 38b contacts the flat side 46 of the potentiometer 44, causing the potentiometer 44 to rotate with the dial housing 36. As the potentiometer 44 rotates, it sends an electronic signal to the control system to adjust the torque setting of the power tool 10. As the dial housing 36 rotates, the circuit board 48 and support 52 remain stationary. The block 42 is configured to contact the stop 55, preventing the dial housing 36 from rotating a full rotation. This allows the dial housing 36 to rotate through an angle less than 360 degrees. When the dial housing 36 rotates so that the first side of the block 42 contacts the first side of the stop 55, the torque setting is at its maximum. When the dial housing 36 rotates so that the second side of the block 42, opposite the first side of the block 42, contacts the second side of the stop 55, opposite the first side of the stop 55, the torque setting is at its maximum. In some embodiments, the block may not be present, which would allow the dial housing 36 to rotate freely about the axis of rotation R.

[0056] like Figure 7 and Figure 8As shown, the outer wall 39 of the dial housing 36 contacts the stopper mechanism 60. The stopper mechanism 60 includes a stopper housing 61, a biasing member 62 (e.g., a spring) within the stopper housing 61, and a ball 63 supported by the stopper housing 61 and biased by the biasing member 62. The ball 63 contacts the outer wall 39 and is pushed into the stopper housing 61 by the outer wall 39 against the bias of the biasing member 62. As the dial housing 36 rotates, the ball 63 is pushed into the stopper housing 61 by different distances. For example, when the ball 63 contacts one of the plurality of grooves 66 on the outer wall 39, the ball 63 is pushed into the stopper housing 61 by a first distance. When the ball 63 contacts one of the plurality of raised portions 67 on the outer wall 39, the ball 63 is pushed into the stopper housing 61 by a second distance greater than the first distance. Thus, to rotate the dial housing 36 from one of the plurality of grooves 66 to another of the plurality of grooves 66, the user must overcome the force required to push the ball 63 against the bias of the biasing member 62 to a distance between the second distance and the first distance. The ball 63 is configured to remain stationary in the groove 66, and the groove 66 can correspond to a specific torque setting. Rotating the dial housing 36 against the bias of the biasing member 62 can also provide tactile feedback. This alerts the user that the torque setting has switched from one level to another. The torque setting can also be indicated by a display, light, etc. In some embodiments, a plurality of LEDs can be used to display the torque setting.

[0057] exist Figure 9 1 shows a controller 100 for the power tool 10. The controller 100 is electrically and / or communicatively connected to various modules or components of the power tool 10. For example, the controller 100 is shown connected to an indicator 145, a current sensor 170, a speed sensor 150, a temperature sensor 172, an auxiliary sensor 174 (e.g., a voltage sensor, an accelerometer, a torque sensor or a torque transducer, etc.), the trigger 28 (via the trigger switch 158), the power switch network 155, and the power input unit 160.

[0058] The controller 100 includes a plurality of electrical and electronic components that provide power, operational control, and protection to the controller 100 and / or components and modules within the power tool 10. For example, the controller 100 includes a processing unit 105 (e.g., a microprocessor, an electronic processor, an electronic controller, a microcontroller, or another suitable programmable device), a memory 125, an input unit 130, and an output unit 135. The processing unit 105 includes a control unit 110, an arithmetic logic unit ("ALU") 115, and a plurality of registers 120 (in Figure 9The processing unit 105, the memory 125, the input unit 130 and the output unit 135, as well as the various modules connected to the controller 100 are connected by one or more control and / or data buses (e.g., common bus 142). For the purpose of illustration, the control and / or data buses are shown in FIG. Figure 9 In view of the specific embodiments described in the present invention, those skilled in the art will know that one or more control and / or data buses are used for interconnection and communication between various modules and components.

[0059] The memory 125 is a non-transitory computer-readable medium and includes, for example, a program storage area and a data storage area. The program storage area and the data storage area may include a combination of different types of memory, such as ROM, RAM (e.g., DRAM, SDRAM, etc.), EEPROM, flash memory, a hard drive, an SD card, or other suitable magnetic, optical, physical, or electronic storage devices. The processing unit 105 is connected to the memory 125 and executes software instructions that can be stored in the RAM of the memory 125 (e.g., during execution), the ROM of the memory 125 (e.g., on a substantially permanent basis), or another non-transitory computer-readable medium such as another memory or disk. The software included in the implementation of the power tool 10 may be stored in the memory 125 of the controller 100. This software includes, for example, firmware, one or more application programs, program data, filters, rules, one or more program modules, and other executable instructions. The controller 100 is configured to retrieve and execute instructions related to the control process and method described herein from the memory 125. In other embodiments, the controller 100 includes additional, fewer, or different components.

[0060] The controller 100 drives the motor 180 to rotate the driver in response to the user's actuation of the trigger 28. The driver can be coupled to the motor 180 via an output shaft. Pressing the trigger 28 activates the trigger switch 158, which outputs a signal to the controller 100 to drive the motor 180, thereby driving the driver. In some embodiments, the controller 100 controls the power switch network 155 (e.g., a FET switch bridge) to drive the motor 180. For example, the power switch network 155 can include a plurality of high-side switching elements (e.g., FETs) and a plurality of low-side switching elements. The controller 100 can control each FET of the plurality of high-side switching elements and the plurality of low-side switching elements to drive each phase of the motor 180. For example, the power switch network 155 can be controlled to decelerate the motor 180 faster. In some embodiments, the controller 100 monitors the rotation of the motor 180 (e.g., the rotation rate of the motor 180, the speed of the motor 180, the position of the motor 180, etc.) via the speed sensor 150. The motor 2180 can be configured to drive a gearbox (e.g., a mechanism). In some embodiments, the controller 100 is configured to implement an electronic clutch. For example, the controller 100 is configured to monitor the current, speed, and / or torque associated with the motor 180. When the monitored current, speed, and / or torque associated with the motor 180 meets a threshold, the controller 100 implements or activates the electronic clutch to reduce or stop the operation of the motor 180 (e.g., partially or completely interrupt the current flowing to the motor 180).

[0061] The indicator 145 is also connected to the controller 100 and receives control signals from the controller 100 to turn on and off or otherwise transmit information based on different states of the power tool 10. The indicator 145 includes, for example, one or more light emitting diodes (LEDs) or display screens. The indicator 145 can be configured to display the status of the power tool 10 or information associated with the power tool. For example, the indicator 145 can display information related to the operating state of the power tool 10, such as a mode or speed setting. The indicator 145 can also display information related to a fault condition or other abnormality of the power tool. In addition to or in lieu of a visual indicator, the indicator 145 can also include a speaker or a tactile feedback mechanism to transmit information to the user through an auditory or tactile output. In some specific embodiments, the indicator 145 displays information related to the brake operation or clutch operation (e.g., electronic clutch operation) of the controller 100. For example, when the controller 100 performs a clutch operation, one or more LEDs are activated.

[0062] The battery pack interface 185 is connected to the controller 100 and is configured to couple with the battery pack 190. The battery pack interface 185 includes a combination of mechanical components (e.g., a battery pack receiving portion) and electrical components that are configured and operable to engage (e.g., mechanically, electrically, and communicatively connect) the power tool 10 with the battery pack 190. The battery pack interface 185 is coupled to the power input unit 160. The battery pack interface 185 transmits power received from the battery pack 190 to the power input unit 160. The power input unit 160 includes active and / or passive components (e.g., a voltage step-down controller, a voltage converter, a rectifier, a filter, etc.) to regulate or control the power received through the battery pack interface 185 and reaching the controller 100. In some specific embodiments, the battery pack interface 185 is also coupled to the power switching network 155. The operation of the power switching network 155, controlled by the controller 100, determines how power is supplied to the motor 180.

[0063] Current sensor 170 senses the current provided by battery pack 190, the current associated with motor 180, or a combination thereof. In some embodiments, current sensor 170 senses at least one phase current of the motor. Current sensor 170 may be, for example, an in-line phase current sensor, a pulse-width modulated center-sampling inverter bus current sensor, or the like. Speed ​​sensor 150 senses the speed of motor 180. Speed ​​sensor 150 may include, for example, one or more Hall-effect sensors. In some embodiments, temperature sensor 172 senses the temperature of switch network 155, battery pack 190, motor 180, or a combination thereof. Input device 140 is operably coupled to controller 100 to, for example, select a forward operating mode, a reverse operating mode, a torque setting for power tool 10, and / or a speed setting for power tool 10 (e.g., using a torque and / or speed switch). In some embodiments, input device 140 includes a combination of digital and analog input or output devices necessary to achieve the desired operating level of power tool 10, such as one or more knobs, one or more dials, one or more switches, one or more buttons, or the like. In other embodiments, input device 140 is configured as a ring (eg, a torque ring) or a torque adjustment interface (eg, dial assembly 32 ) The control input device 140 sets a desired torque and / or desired speed value for the drive motor 180 .

[0064] The power tool 10 can include various different types of indicators to indicate, for example, different torque settings for the power tool 10 that are set using a torque adjustment interface. In some embodiments, the torque setting indicator can be located on an upper portion or top portion of the power tool 10. In some embodiments, the torque setting indicator can be located on a side (e.g., a rear side) of the power tool 10.

[0065] Figure 10 A specific embodiment 1000 of the power tool 10 is shown, which includes an upper portion or top portion of the power tool 1000 (e.g., Figure 1 The torque setting indicator 1005 is located on the motor housing portion 18 of the power tool 1000. The torque setting indicator 1005 includes a set of indicators 1024 (e.g., a plurality of light-emitting devices [e.g., LEDs]) that can be illuminated to indicate the torque setting set using the torque adjustment interface. In some embodiments, the light-emitting devices can change color (e.g., red, blue, green, etc.) to convey the operating state or setting of the power tool 1000. In addition, more illuminated light-emitting devices can indicate, for example, a higher torque setting of the power tool 1000.

[0066] Figure 11 and 12 Additional examples of torque setting indicators for the power tool 10 are shown. Figure 11 A specific embodiment 1100 of the power tool 10 is shown that includes a torque setting indicator 1105 on an upper portion or top portion of the power tool 1100. In the specific embodiment shown, the torque setting indicator 1105 includes a numerical representation of a torque setting (e.g., a value between 0 and 10) that can be set, for example, using a torque adjustment interface. The torque setting indicator can similarly include a display of the battery state of charge by illuminating one or more segments of a fuel gauge (e.g., four segments illuminated indicates a full battery charge). In the illustrated embodiment, the torque setting indicator 1105 can include a liquid crystal display or other similar display to display the torque setting and / or the battery state of charge.

[0067] Figure 12 A specific embodiment 1200 of the power tool 10 is shown that includes a torque setting indicator 1205 on the upper portion or top of the power tool 1200. In the specific embodiment shown, the torque setting indicator 1205 includes a numerical representation of the torque setting (e.g., a numerical value between 0 and 100) that can be set, for example, using a torque adjustment interface. In the embodiment shown, the torque setting indicator 1205 includes a multi-digit seven-segment display. The digits of the seven-segment display can illuminate to indicate the torque setting set using the torque adjustment interface.

[0068] Figure 13 and 14 Additional embodiments of torque setting indicators for the power tool 10 are shown. Figure 13 A specific embodiment 1300 of the power tool 10 is shown, which includes a side portion (e.g., Figure 1The torque setting indicator 1305 is located on the rear housing portion 31 of the torque control unit. In the embodiment shown, the torque setting indicator 1305 includes a numerical representation of a torque setting (e.g., a value between 0 and 100) that can be set, for example, using a torque adjustment interface. The torque setting indicator can similarly include a display of the battery state of charge by illuminating one or more segments of a fuel gauge (e.g., four illuminated segments indicate a full battery charge). In the embodiment shown, the torque setting indicator 1305 can include a liquid crystal display or other similar display to display the torque setting and / or the battery state of charge.

[0069] Figure 14 A specific embodiment 1400 of the power tool 10 is shown, which includes a side portion (e.g., Figure 1 The torque setting indicator 1405 is located on the rear housing portion 31 of the torque adjustment device. In the embodiment shown, the torque setting indicator 1405 includes a numerical representation of the torque setting (e.g., a value between 0 and 100) that can be set, for example, using a torque adjustment interface. In the embodiment shown, the torque setting indicator 1405 includes a multi-digit seven-segment display. The digits of the seven-segment display can illuminate to indicate the torque setting set using the torque adjustment interface.

[0070] Figure 15 15. A specific embodiment 1500 of a power tool 10 is shown that includes a torque setting indicator 1505. Although the torque setting indicator 1505 is shown on the side of the power tool 1500 (e.g., Figure 1 , but the torque setting indicator may alternatively or additionally be located on an upper or top portion of the power tool 1500.

[0071] Figure 16-24 A variation of a torque setting indicator 1505 that may be included in a power tool 1500 is shown.

[0072] Figure 16 A torque setting indicator 1600 for the power tool 1500 is shown that includes only a numerical display of the torque setting (eg, a numerical value between 0 and 100).

[0073] Figure 17 A torque setting indicator 1700 for the power tool 1500 is shown, which includes a numerical display of the torque setting (e.g., a value between 0 and 100) and a fuel gauge for the battery pack. The fuel gauge of the battery pack includes four LEDs that can be illuminated to display the current state of charge of the battery pack.

[0074] Figure 18A torque setting indicator 1800 for the power tool 1500 is shown, which includes a numerical display of the torque setting (e.g., a numerical value between 0 and 100) and a fuel gauge for the battery pack. The fuel gauge of the battery pack includes four backlit LED segments that can be illuminated to display the current state of charge of the battery pack.

[0075] Figure 19 A torque setting indicator 1900 for the power tool 1500 is shown, including a numerical display of the torque setting (e.g., a numerical value between 0 and 100) and a fuel gauge for the battery pack. The fuel gauge for the battery pack includes a numerical representation of the battery pack's state of charge (e.g., between 0% and 100%) and an illuminated bar corresponding to the battery pack's state of charge (e.g., 75% illuminated).

[0076] Figure 20 A torque setting indicator 2000 for the power tool 1500 is shown including a numerical display of a torque setting (eg, a value between 0 and 100) and one or more mode settings (eg, hammer mode, tightening mode, etc.).

[0077] Figure 21 A torque setting indicator 2100 for the power tool 1500 is shown, which includes a numerical display of the torque setting (e.g., a numerical value between 0 and 100) and one or more mode settings (e.g., hammer mode, tightening mode, etc.) and a battery pack fuel gauge. The battery pack fuel gauge includes a numerical representation of the battery pack state of charge (e.g., between 0% and 100%) and an illuminated lighting bar corresponding to the battery pack state of charge (e.g., 75% is illuminated).

[0078] Figure 22 A torque setting indicator 2200 for the power tool 1500 is shown, which includes a numerical display of the torque setting (e.g., a numerical value between 0 and 100) and a fuel gauge for the battery pack. The fuel gauge of the battery pack includes a numerical representation of the battery pack state of charge (e.g., between 0% and 100%) and an illuminated lighting bar corresponding to the battery pack state of charge (e.g., 75% is illuminated). In the embodiment shown, an indication of the torque setting type is also provided (e.g., a control mode that provides greater control to the user).

[0079] Figure 23A torque setting indicator 2300 for a power tool 1500 is shown that includes a numerical display of the torque setting (e.g., a numerical value between 0 and 100) and a fuel gauge for the battery pack. The fuel gauge of the battery pack includes a numerical representation of the battery pack state of charge (e.g., between 0% and 100%) and an illuminated bar that is illuminated corresponding to the battery pack state of charge (e.g., 75% is illuminated). In the specific embodiment shown, an indication of the torque setting type is also provided (e.g., a control mode that provides greater control to the user). The torque setting indicator 2300 may also include a lock indicator that indicates, for example, that the power tool 1500 is in a locked state or that the torque setting cannot currently be modified.

[0080] Figure 24 An additional or alternative indicator 2400 is shown showing a fuel gauge for the battery pack, including a numerical representation of the battery pack state of charge (e.g., between 0% and 100%), and an illuminated bar that is illuminated corresponding to the battery pack state of charge (e.g., 75% is illuminated), and one or more mode settings (e.g., hammer mode, tightening mode, etc.).

[0081] Figure 25 A torque setting indicator 2500 is shown that indicates a clutch disengagement indication (eg, electronic clutch engaged, torque setting for the clutch has been met and / or exceeded, etc.).

[0082] Figure 26 A torque setting indicator 2600 is shown that indicates when the clutch disengaged state has been released (eg, a check mark indicates the electronic clutch is no longer engaged, the torque setting for the clutch is no longer met or exceeded, etc.).

[0083] Figure 27 A specific embodiment 2700 of the power tool 10 is shown, which includes a side portion (e.g., Figure 1 The torque setting indicator 2705 is formed as a ring (e.g., an LED ring). The torque setting indicator can illuminate different segments of the torque setting indicator to indicate the torque setting of the power tool 2700. The torque setting 2710 for the power tool 2700 is provided by the illuminated segments of the torque setting indicator 2705. In the embodiment shown, the torque setting is a low value (e.g., 1 out of 21). In the embodiment shown, no numerical representation is provided.

[0084] Figure 28 An embodiment 2800 of the power tool 10 is shown that includes a side portion (e.g., Figure 1The torque setting indicator 2805 is formed on the rear housing portion 31 of the power tool 2800. The torque setting indicator is formed as a ring (e.g., an LED ring). The torque setting indicator can illuminate different segments of the torque setting indicator to indicate the torque setting of the power tool 2800. The torque setting 2810 for the power tool 2800 is provided by the illuminated segments of the torque setting indicator 2705. In the embodiment shown, the torque setting is a low value (e.g., 1 out of 21). In the embodiment shown, a numerical representation is provided to indicate the relative value of the torque setting.

[0085] Figure 29 A specific embodiment 2900 of the power tool 10 is shown, which includes a side portion (e.g., Figure 1 2905 on the rear housing portion 31 of the power tool 2900. The torque setting indicator is formed as a ring (e.g., an LED ring). The torque setting indicator can illuminate different segments of the torque setting indicator to indicate the torque setting of the power tool 2900. The torque setting 2910 for the power tool 2900 is provided by the illuminated segments of the torque setting indicator 2905. In the embodiment shown, the torque setting is a higher value (e.g., 15 out of 16). In the embodiment shown, a numerical representation is provided to indicate the corresponding value of the torque setting. The power tool 2900 may also include a battery pack charge status indicator 2915 in combination with the torque setting indicator 2905. In some embodiments, the power tool 2900 also includes a mode setting 2920 that indicates the operating mode of the power tool 2900.

[0086] Figure 30 A specific embodiment 3000 of the power tool 10 is shown, which includes a side portion (e.g., Figure 131 of the rear housing portion 31). The torque setting indicator is formed as a ring (e.g., an LED ring). The torque setting indicator can illuminate different segments of the torque setting indicator to indicate the torque setting of the power tool 3000. The torque setting 3010 of the power tool 3000 is provided by the illuminated segments of the torque setting indicator 3005. In the embodiment shown, the torque setting is a high value (e.g., 16 out of 16). In the embodiment shown, a numerical representation is provided to indicate the corresponding value of the torque setting. The power tool 3000 may also include a battery pack charge status indicator 3015 in combination with the torque setting indicator 3005. In some embodiments, the power tool 3000 also includes a mode setting 3020 that indicates the operating mode of the power tool 2900 (e.g., screw mode). The power tool 3000 is configured to, for example, illuminate the torque setting indicator 3005 (e.g., green or a color other than a normal color [e.g., white]) to provide a clutch disengagement indication (e.g., the electronic clutch is engaged, the torque setting of the clutch has been met and / or exceeded, etc.). In some embodiments, the torque setting indicator 3005 can flash or blink to indicate that the electronic clutch is engaged. In some embodiments, when the electronic clutch is engaged, the power tool 10 disables or pulses (e.g., causing a vibration that the user can feel and mimics a mechanical clutch) the motor to provide a physical indication that the electronic clutch is engaged. In some embodiments, the power tool described in the present invention is configured to control the motor to generate an audible indication (e.g., by applying a high-frequency signal to the motor so that a sound is generated but the motor does not rotate), which will be described in more detail below.

[0087] Figure 31 A specific embodiment 3100 of the power tool 10 is shown, which includes a side portion (e.g., Figure 1 31 ). The torque setting indicator is formed as a ring (e.g., an LED ring). The torque setting indicator can illuminate different segments of the torque setting indicator to indicate the torque setting of the power tool 3100. The torque setting 3110 for the power tool 3100 is provided by the illuminated segments of the torque setting indicator 3105. In the embodiment shown, the torque setting is a low value (e.g., 1 out of 20). In the embodiment shown, a numerical representation is provided to indicate the corresponding value of the torque setting. In some embodiments, the power tool 3100 also includes a mode setting 3115 that indicates the operating mode of the power tool 3100.

[0088] Figure 32 A specific embodiment 3200 of the power tool 10 is shown, which includes a side portion (e.g., Figure 131 ). The torque setting indicator is formed as a ring (e.g., an LED ring). The torque setting indicator can illuminate different segments of the torque setting indicator to indicate the torque setting of the power tool 3200. The torque setting 3210 for the power tool 3200 is provided by the illuminated segments of the torque setting indicator 3205. In the embodiment shown, the torque setting is a higher value (e.g., 15 out of 16). In the embodiment shown, a numerical representation is provided to indicate the corresponding value of the torque setting. The power tool 3200 may also include a battery pack charge status indicator 3215 in combination with the torque setting indicator 3205. In some embodiments, the power tool 3200 also includes a mode setting 3220 that indicates the operating mode of the power tool 3200.

[0089] Figure 33 is a specific embodiment 3300 of the power tool 10, which includes a side portion of the power tool 3300 ( Figure 1 31 ). The torque setting indicator is formed as a ring (e.g., an LED ring). The torque setting indicator can illuminate different segments of the torque setting indicator to indicate the torque setting of the power tool 3300. The torque setting 3310 for the power tool 3300 is provided by the illuminated segments of the torque setting indicator 3205. In the embodiment shown, the torque setting is a medium value (e.g., 10 out of 16). In the embodiment shown, a numerical representation is provided to indicate the corresponding value of the torque setting. The power tool 3300 may also include a battery pack charge status indicator 3315 in combination with the torque setting indicator 3305. In some embodiments, the power tool 3300 also includes a mode setting 3320 that indicates a specific operating mode of the power tool 3300.

[0090] Figure 34 A specific embodiment 3400 of the power tool 10 is shown, which includes a side portion (e.g., Figure 1The torque setting indicator 3405 is formed on the rear housing portion 31 of the power tool 3400. The torque setting indicator is formed as a ring (e.g., an LED ring). The torque setting indicator can illuminate different segments of the torque setting indicator to indicate the torque setting of the power tool 3400. The torque setting 3410 for the power tool 3400 is provided by the illuminated segments of the torque setting indicator 3405. In the illustrated embodiment, the torque setting is a high value (e.g., 16 out of 16). In the illustrated embodiment, a numerical representation is provided to indicate the corresponding value of the torque setting. The power tool 3400 may also include a battery pack charge status indicator 3415 in combination with the torque setting indicator 3405. In some embodiments, the power tool 3400 also includes a mode setting 3420 that indicates the operating mode of the power tool 3400. The power tool 3400 is configured to, for example, illuminate the torque setting indicator 3405 (e.g., green or a color other than the normal color [e.g., white]) to provide a clutch disengagement indication (e.g., electronic clutch engaged, clutch torque setting has been met and / or exceeded, etc.). In some embodiments, the torque setting indicator 3005 can flash or blink to indicate that the electronic clutch is engaged. In some embodiments, when the electronic clutch is engaged, the power tool 10 disables or pulses (e.g., causing a vibration that the user can feel and mimics a mechanical clutch) the motor to provide a physical indication that the electronic clutch is engaged. In some embodiments, the power tool of the present invention is configured to control the motor to produce an audible indication (e.g., by applying a high-frequency signal to the motor so that a sound is produced but the motor does not rotate), as described in more detail below.

[0091] Figure 35 A specific embodiment 3500 of the power tool 10 is shown, which includes a side portion (e.g., Figure 1 31 ). The torque setting indicator is formed as a ring (e.g., an LED ring). The torque setting indicator can illuminate different segments of the torque setting indicator to indicate the torque setting of the power tool 3500. The torque setting 3510 of the power tool 3500 is provided by the illuminated segments of the torque setting indicator 3505. In the embodiment shown, the torque setting is a medium value (e.g., 12 out of 20). In the embodiment shown, a numerical representation is provided to indicate the corresponding value of the torque setting. The power tool 3500 may also include a battery pack charge status indicator 3515, which is centrally located within the torque setting indicator 3505 so that it is separated from the torque setting indicator 3505. In some embodiments, the power tool 3500 also includes a mode setting 3520 that indicates the operating mode of the power tool 3500.

[0092] Figure 36A specific embodiment 3600 of the power tool 10 is shown, which includes a side portion (e.g., Figure 1 31 ). The torque setting indicator is formed as a ring (e.g., an LED ring). The torque setting indicator can illuminate different segments of the torque setting indicator to indicate the torque setting of the power tool 3600. The torque setting 3610 for the power tool 3600 is provided by the illuminated segments of the torque setting indicator 3605. In the embodiment shown, the torque setting is a lower value (e.g., 8 out of 21). In the embodiment shown, a numerical representation is provided to indicate the corresponding value of the torque setting. The power tool 3600 may also include a battery pack state of charge indicator 3615, which is centrally located within the torque setting indicator 3605 so that it is separated from the torque setting indicator 3605. In some embodiments, the power tool 3600 also includes a mode setting 3620 that indicates the operating mode of the power tool 3600. The mode setting 3620 may be centrally located within the torque setting indicator 3605 such that it is separate from the torque setting indicator 3605 (eg, adjacent to the battery pack state of charge indicator 3615).

[0093] As shown above with respect to the exemplary power tool described in the present invention, the power tool can be configured to control the motor to emit an audible sound. The audible sound can be used to provide the user with an indication of the power tool status (e.g., a fault condition, an error state, an electronic clutch being activated or activated, reaching a torque limit, etc.). Such operation of the power tool will be described below with respect to the communication system 3700. However, the same functionality is also applicable to any of the power tools described above.

[0094] Figure 37A communication system 3700 is shown that includes a power tool 3705 (e.g., power tool 10) and an external device 3710. The power tool 3705 is configured to wirelessly communicate with the external device 3710 when the power tool 3705 is within communication range of the external device 3710. In some embodiments, the power tool 3705 wirelessly transmits a signal to the external device 3710 indicating one or more of a power tool status, power tool operating statistics, a power tool identification, stored power tool usage information, power tool maintenance data, and / or other data associated with the power tool 3705. In some embodiments, the external device 3710 is configured to wirelessly transmit a signal for controlling the operation of the power tool 3705. For example, the external device 3710 can be configured to send a signal that instructs the power tool 3705 to perform an operation (e.g., emit a sound, illuminate an indicator, etc.), configure one or more parameters of the power tool 3705, update the firmware of the power tool 3705, and / or remotely control some other feature of the power tool 3705. Although illustrated as including a single power tool 3705 and a single external device 3710, it should be understood that in some embodiments, the communication system 3700 includes a plurality of power tools and / or a plurality of external devices.

[0095] Figure 38 A side view of a power tool 3705 is shown. Although illustrated as a battery-powered impact driver, it should be understood that power tool 3705 can be implemented as any type of power tool that includes a motor (e.g., a power drill, hammer drill, pipe cutter, grinder, nail gun, grease gun, etc.). That is, the impact driver shown is merely representative, and implementation of power tool 3705 is not limited to impact drivers. Furthermore, any description of power tool 3705 associated with the figures is similarly applicable to other types of power tools for implementing power tool 3705.

[0096] like Figure 38 As shown, the power tool 3705 includes an upper body 3805, a handle 3810, a battery pack receiving portion 3815, an output drive device or mechanism 3820, a trigger 3825, and one or more indicators 3830 (e.g., a work light). The drive device 3820 is shown as a socket. However, it should be understood that other types of power tools may include other types of drive devices. For example, the drive device for an electric drill may include a drill driver, while the drive device for a pipe cutter may include a blade. The battery pack receiving portion 3815 is configured to receive and couple to a removable and rechargeable battery pack 3835 (see FIG. 1 ) that powers the power tool 3705. Figure 39The battery pack receiving portion 3815 includes a connection structure that engages a mechanism for securing the battery pack 3835 and an interface for electrically connecting the battery pack 3835 to the power tool 3705. In some embodiments, the power tool 3705 is powered by an AC power source and does not include a battery pack receiving portion.

[0097] like Figure 39 and 40 As shown, the power tool 3705 further includes a motor 3840. The motor 3840 actuates the drive device 3820 and allows the drive device 3820 to perform a specific work task (e.g., tightening). In operation, the motor 3840 is energized based on the position of the trigger 3825. For example, when the trigger 3825 is pressed, the motor 3840 is energized. Similarly, when the trigger 3825 is released, the motor 3840 is de-energized. As will be described in more detail below, the motor 3840 can also be energized in response to a command received from the external device 3710 (e.g., when the trigger 3825 is not actuated).

[0098] Figure 39 3900 is a schematic overview of a controller 3900 included in a power tool 3705. The controller 3900 is electrically and / or communicatively connected to various modules or components of the power tool 3705. For example, the controller 3900 may be connected to one or more indicators 3830, one or more sensors 3905, a battery pack interface 3910, a power input unit 3915, a trigger switch 3920, a switch module 3925, and a wireless communication controller 3930.

[0099] The controller 3900 includes a plurality of electrical and electronic components that provide power, operational control, and protection to the components and modules within the controller 3900 and / or the power tool 3705. For example, the controller 3900 includes a processing unit or processor 3935 (e.g., a microprocessor, an electronic processor, an electronic controller, a microcontroller, or another suitable programmable device), a memory 3940, an input unit 3945, and an output unit 3950. The processing unit 3935 includes a control unit 3955, an arithmetic logic unit ("ALU") 3960, and a plurality of registers 3965 (in Figure 39 The processing unit 3935, the memory 3940, the input unit 3945 and the output unit 3950, as well as the various modules connected to the controller 3900, are connected via one or more control and / or data buses (e.g., a common bus 3970). For the purpose of illustration, the control and / or data buses are shown in FIG. Figure 39In view of the specific embodiments described in the present invention, those skilled in the art will know that one or more control and / or data buses are used for interconnection and communication between various modules and components.

[0100] Memory 3940 is a non-transitory computer-readable medium and includes, for example, a program storage area and a data storage area. The program storage area and the data storage area can include a combination of different types of memory, such as ROM, RAM (e.g., DRAM, SDRAM, etc.), EEPROM, flash memory, a hard drive, an SD card, or other suitable magnetic, optical, physical, or electronic storage devices. The processing unit 3935 is connected to the memory 3940 and executes software instructions that can be stored in the RAM of the memory 3940 (e.g., during execution), the ROM of the memory 3940 (e.g., on a substantially permanent basis), or another non-transitory computer-readable medium (e.g., another memory or an optical disk). The software included in the implementation of the power tool 3705 can be stored in the memory 3940 of the controller 3900. This software includes, for example, firmware, one or more application programs, program data, filters, rules, one or more program modules, and other executable instructions. The controller 3900 is configured to retrieve and execute instructions related to the control process and method described herein from the memory 3940. In other embodiments, controller 3900 includes additional, fewer, or different components.

[0101] The controller 3900 is configured to activate one or more indicators 3830 to illuminate the workpiece and / or otherwise convey information about the power tool 3705 to the user. The indicators 3830 include, for example, one or more light-emitting diodes (LEDs), a display screen, and the like. In addition to or in lieu of visual indicators, the indicators 3830 may also include a speaker or a tactile feedback mechanism to convey information to the user via an auditory or tactile output. The sensors 3905 are coupled to the controller 3900 and send various signals to the controller 3900 indicating one or more states of the power tool 3705 and / or the motor 3840. The sensors 3905 may include one or more Hall effect sensors, current sensors, voltage sensors, temperature sensors, torque sensors, and / or other types of sensors.

[0102] The battery pack interface 3910 is positioned within the battery pack receiving portion 3815 and includes a combination of mechanical and electrical components that are configured and operable to engage (e.g., mechanically, electrically, and communicatively connect) the power tool 3705 with the battery pack 3835. The battery pack interface 3910 transmits power received from the battery pack 3835 to the power input unit 3915. The power input unit 3915 includes active and / or passive components (e.g., a voltage step-down controller, a voltage converter, a rectifier, a filter, etc.) to regulate or control the rate of power received through the battery pack interface 3910 and transmitted to the wireless communication controller 3930 and the controller 3900. When the battery pack 3835 is not coupled to the power tool 3705, the wireless communication controller 3930 can be configured to receive power from a backup power source 3975 (e.g., a button cell battery).

[0103] Furthermore, the controller 3900 is configured to control the operation of the motor 3840 . Figure 40 A circuit diagram of a motor drive circuit 4000 included in a power tool 3705 is shown. As shown, the motor drive circuit 4000 includes a battery pack 3835, a motor 3840, and a switch module 3925. The switch module 3925 includes a number of high-side power switching devices (e.g., FETs) 4005 and a number of low-side power switching devices (e.g., FETs) 4010.

[0104] During normal operation of the power tool 3705 (e.g., during a tightening operation), the controller 3900 provides control signals to control the high-side FET 4005 and the low-side FET 4010 to drive the motor 3840 based on motor feedback information and user control. For example, when the user of the power tool 3705 pulls or activates the trigger 3825, the controller 3900 detects the activation of the trigger switch 3920 and applies a control signal to the switch module 3925. The control signal applied by the controller 3900 selectively enables and disables the FETs 4005 and 4010 (e.g., sequentially, in pairs). The selective control of the FETs 4005 and 4010 causes power from the battery pack 3835 to be selectively applied to the stator coils 4015 of the motor 3840, thereby causing the rotor 4020 to rotate relative to the stator 4025. In some embodiments, the control signal comprises a pulse width modulated (PWM) signal having a duty cycle that is proportional to or set based on the amount of trigger pull of trigger 3825 , thereby controlling the speed or torque of motor 3840 .

[0105] The controller 3900 is further configured to control the motor 3840 to emit sound without causing the motor 3840 to rotate. Specifically, the controller 3900 is configured to control the switch module 3925 to apply a high-frequency current signal within the audible frequency range (e.g., 20 Hz-20 kHz) to the stator coil 4015. In other words, the controller 3900 controls the switch module 3925 to apply a current signal having a high frequency (e.g., a frequency greater than 10 kHz) within the audible frequency range. When the stator coil 4015 of the motor 3840 is excited by the high-frequency current signal, the rotor 4020 does not rotate relative to the stator 4025. Instead, under high-frequency excitation, the motor 3840 emits a sound signal within the audible frequency range (e.g., 20 Hz-20 kHz).

[0106] In order for the rotor 4020 to rotate relative to the stator 4025, the frequency of the current applied to the stator coils 4015 must be synchronized with that of the rotor 4020. If the frequency of the current applied to the stator coils 4015, or the excitation frequency, is too high when the motor 3840 is started, synchronization between the applied current and the rotor 4020 is lost. Therefore, when the excitation frequency is too high, the rotor 4020 does not rotate relative to the stator 4025. Conversely, when the motor 3840 is excited at a high frequency, it experiences time-varying forces that cause the structure of the motor 3840 to vibrate and produce sound. In other words, when the excitation frequency is too high, the motor 3840 vibrates and produces sound at the excitation frequency without any movement of the rotor 4020. Therefore, the controller 3900 is operable to control the motor 3840 to produce sound without rotating the rotor 4020 by applying a high-frequency current signal within the audible frequency range to the stator coils 4015 when the motor 3840 is started.

[0107] Thus, the controller 3900 is configured to operate the motor 3840 as a speaker by applying a high frequency current signal to the stator coil 4015. In some embodiments, the sound signal emitted by the motor 3840 is a random signal within the frequency range audible to humans. In some embodiments, the controller 3900 controls the switching of the FETs 4005 and 4010 so that the motor 3840 emits a specific sound signal (e.g., a song [e.g., a link to an audio streaming service] or other tune, a sequence of multiple tones, etc. In some embodiments, the controller 3900 controls the switching of the FETs 4005 and 4010 so that the motor 3840 emits a specific sound signal (e.g., a song [e.g., a link to an audio streaming service] or other tune, a sequence of multiple tones, etc.). Switching between 4005 and 4010 causes motor 3840 to emit sounds in a specific pattern. For example, controller 3900 can be configured to control motor 3840 to emit sounds periodically. In some embodiments, controller 3900 controls motor 3840 to emit sounds based on input from the user of power tool 3705 (e.g., a mode setting). For example, controller 3900 can be configured to control motor 3840 to emit sounds when the user pulls or activates trigger 3825 for a predetermined amount of time. In some embodiments, controller 3900 is configured to control motor 3840 to emit sounds in response to wireless communication controller 3930 receiving a signal from external device 3710. For example, when a user of external device 3710 desires to position power tool 3705, the user can send a signal through external device 3710 instructing motor 3840 to emit sounds. In some embodiments, controller 3900 is configured to control motor 3840 to emit sounds in response to reaching a torque value (e.g., a precise torque value).

[0108] Figure 41 FIG3 is a schematic diagram of a wireless communication controller 3930 connected to the controller 3900 of the power tool 3705. As shown, the wireless communication controller 3930 includes a processor 4100, a memory 4105, a radio antenna and transceiver 4110, and a real-time clock (RTC) 4115. The wireless communication controller 3930 enables the power tool 3705 to communicate with an external device 3710. The radio antenna and transceiver 4110 work together to send and receive wireless messages to and from the external device 3710 and the processor 4100. The memory 4105 may store instructions to be executed by the processor 4100 and / or may store data related to communication between the power tool 3705 and the external device 3710. The processor 4100 for the wireless communication controller 3930 controls the wireless communication between the power tool 3705 and the external device 3710. For example, the processor 4100 associated with the wireless communication controller 3930 may buffer incoming and / or outgoing data, communicate with the controller 3930 , and determine communication protocols and / or settings to be used in wireless communications.

[0109] In the illustrated embodiment, wireless communication controller 3930 is a Bluetooth® controller. The Bluetooth® controller communicates with external device 3710 using the Bluetooth® protocol. Thus, in the illustrated embodiment, when external device 3710 and power tool 3705 are within communication range (i.e., nearby) of each other, they can exchange data. In other embodiments, wireless communication controller 3930 communicates over different types of wireless networks using other protocols (e.g., Wi-Fi, ZigBee, proprietary protocols, etc.). For example, wireless communication controller 3930 can be configured to communicate via Wi-Fi over a wide area network, such as the Internet or a local area network, or via a piconet (e.g., using infrared or NFC communication).

[0110] In some specific embodiments, the network is a cellular network, such as a Global System for Mobile Communications ("GSM") network, a General Packet Radio Service ("GPRS") network, a Code Division Multiple Access ("CDMA") network, an Evolution-Data Optimized ("EV-DO") network, an Enhanced Data Rates for GSM Evolution ("EDGE") network, a 3GSM network, a 4GSM network, a 4G LTE network, a 5G New Radio ("New Radio"), a Digital Enhanced Cordless Telecommunications ("DECT") network, a Digital AMPS ("IS-136 / TDMA") network, or an Integrated Digital Enhanced Network ("iDEN") network, among others.

[0111] The wireless communication controller 3930 is configured to receive data from the controller 3900 and relay that information to the external device 3710 via the antenna and transceiver 4110. In a similar manner, the wireless communication controller 3930 is configured to receive information (e.g., commands, configuration and programming information, etc.) from the external device 3710 via the antenna and transceiver 4110 and relay that information to the controller 3900.

[0112] The RTC 4115 can increase and maintain time independently of the other components of the power tool 3705. The RTC 4115 can receive power from the battery pack 3835 when the battery pack 3835 is connected to the power tool 3705, and can receive power from the backup power source 3975 when the battery pack 3835 is not connected to the power tool 3705. Using the RTC 4115 as an independently powered clock enables time stamping of operational data (stored in the memory 4105 for later export) and provides a safety feature whereby a lockout time is set by the user (e.g., via the external device 3710), and when the time of the RTC 4115 exceeds the set lockout time, the tool is locked.

[0113] The external device 3710 included in the communication system 3700 is illustrated as a smartphone. However, it should be understood that the external device 3710 can be implemented as any electronic device capable of wirelessly communicating with the power tool 3705 and providing a user interface. For example, in some embodiments, the external device is implemented as a laptop, a tablet computer, a personal digital assistant (PDA), or another electronic device capable of wirelessly communicating with the power tool 3705 and providing a user interface.

[0114] Figure 42 A generalized schematic diagram of an external device 3710 is shown. The external device 3710 includes a controller 4200 that includes a plurality of electrical and electronic components that provide power, operational control, and protection to the controller 4200 and / or components and modules within the external device 3710. For example, the controller 4200 includes a processing unit or processor 4205 (e.g., a microprocessor, an electronic processor, an electronic controller, a microcontroller, or another suitable programmable device), a memory 4210, an input unit 4215, and an output unit 4220. The processing unit 4205 includes a control unit 4225, an arithmetic logic unit ("ALU") 4230, and a plurality of registers 4235 (in Figure 42 The processing unit 4205, the memory 4210, the input unit 4215 and the output unit 4220, as well as the various modules connected to the controller 4200, are connected via one or more control and / or data buses (e.g., a common bus 4240). For the purpose of illustration, the control and / or data buses are shown in FIG. Figure 42 In view of the specific embodiments described in the present invention, those skilled in the art will know that one or more control and / or data buses are used for interconnection and communication between various modules and components.

[0115] Memory 4210 is a non-transitory computer-readable medium and includes, for example, a program storage area and a data storage area. The program storage area and the data storage area can include a combination of different types of memory, such as ROM, RAM (e.g., DRAM, SDRAM, etc.), EEPROM, flash memory, a hard drive, an SD card, or other suitable magnetic, optical, physical, or electronic storage devices. Processing unit 4205 is connected to memory 4210 and executes software instructions that can be stored in the RAM of memory 4210 (e.g., during execution), the ROM of memory 4210 (e.g., on a substantially permanent basis), or another non-transitory computer-readable medium such as another memory or disk. Software included in the implementation of external device 3710 can be stored in memory 4210 of controller 4200. This software includes, for example, firmware, one or more application programs, program data, filters, rules, one or more program modules, and other executable instructions. Controller 4200 is configured to retrieve and execute instructions related to the control process and method described herein from memory 4210. In other embodiments, controller 4200 includes additional, fewer, or different components.

[0116] Controller 4200 is electrically or communicatively connected to additional components of external device 3710, such as user interface 4245, display 4250, and wireless communication controller 4260. Although not shown, user interface 4245 includes one or more user input devices (e.g., buttons, dials, toggle switches, and a microphone for voice control) and user output (e.g., a speaker and tactile feedback elements). Display 4250 is configured to output visual data to the user. In some embodiments, display 4250 is implemented as a touch screen display that is configured to output visual data to the user and receive user input.

[0117] The wireless communication controller 4260 enables the external device 3710 to communicate wirelessly with the wireless communication controller 4260 of the power tool 3705. Similar to the wireless communication controller 3930 of the power tool 3705, the wireless communication controller 4260 of the external device 3710 includes at least one radio antenna and a transceiver 4265, which work together to send and receive wireless messages to and from the external device 3710. The wireless communication controller 4260 further includes a processor 4270, a memory 4275, and an RTC 4280. The memory 4275 may store instructions to be executed by the processor 4270 and / or data related to communication between the power tool 3705 and the external device 3710. The processor 4270 for the wireless communication controller 4260 controls the wireless communication between the power tool 3705 and the external device 3710. For example, the processor 4270 associated with the wireless communication controller 4260 buffers incoming and / or outgoing data, communicates with the controller 4200, and determines the communication protocol and / or settings to be used in the wireless communication.

[0118] In the illustrated embodiment, wireless communication controller 4260 is a Bluetooth® controller. The Bluetooth® controller communicates with power tool 3705 using the Bluetooth® protocol. Thus, in the illustrated embodiment, when external device 3710 and power tool 3705 are within communication range (i.e., nearby) of each other, they can exchange data. In other embodiments, wireless communication controller 4260 communicates over different types of wireless networks using other protocols (e.g., Wi-Fi, ZigBee, proprietary protocols, etc.). For example, wireless communication controller 4260 can be configured to communicate via Wi-Fi over a wide area network, such as the Internet or a local area network, or to communicate over a piconet (e.g., using infrared or NFC communication).

[0119] In some specific embodiments, the network is a cellular network, such as a Global System for Mobile Communications ("GSM") network, a General Packet Radio Service ("GPRS") network, a Code Division Multiple Access ("CDMA") network, an Evolution-Data Optimized ("EV-DO") network, an Enhanced Data Rates for GSM Evolution ("EDGE") network, a 3GSM network, a 4GSM network, a 4G LTE network, a 5G New Radio ("New Radio"), a Digital Enhanced Cordless Telecommunications ("DECT") network, a Digital AMPS ("IS-136 / TDMA") network, or an Integrated Digital Enhanced Network ("iDEN") network, among others.

[0120] The wireless communication controller 4260 is configured to receive data from the controller 4200 via the antenna and transceiver 4265 and relay the information to the power tool 3705. That is, the controller 4200 uses the wireless communication controller 4260 to send a signal to the power tool 3705. For example, the controller 4200 is configured to send a signal to the power tool 3705 via the wireless communication controller 4260, which causes the motor 3840 to emit a sound. In a similar manner, the wireless communication controller 4260 is configured to receive information (e.g., operating data, advertising packets, etc.) from the power tool 3705 via the antenna and transceiver 4265 and relay the information to the controller 4200.

[0121] Returning to the controller 4200 of the external device 3710, the processor 4205 is configured to execute application software stored in the memory 4210 to generate a graphical user interface (GUI) on the display 4250. A user of the external device 3710 can interact with the power tool 3705 using the user interface 4245 and the GUI generated on the display 4250. As described above, in some cases, the display 4250 is a touch screen display, and thus, the user of the external device 3710 can interact with the external device 3710 using only the display 4250. As will be more readily apparent from the following description, at least in some embodiments, the application on the external device 3710 provides the user with a single entry point for controlling, accessing, and / or interacting with the power tool 3705. In embodiments where the communication system 3700 includes a plurality of power tools 3705, the application provides the user with the ability to control, access, and / or interact with each of the plurality of power tools 3705.

[0122] Figure 43 An example of a tool inventory screen 4300 of a GUI generated on display 4250 is shown. Tool inventory screen 4300 is used to identify and communicate with power tools 3705 within the communication range of external device 3710. For example, in response to a user selecting a "scan" input 4305, wireless communication controller 4260 scans the radio wave communication spectrum used by power tools 3705 and identifies any power tools 3705 that are broadcasting within the range. The identified power tools 3705 that are broadcasting are then listed on tool inventory screen 4300. Figure 43 As shown, in response to the scan, three power tools 3705, including an impact driver, are listed in the tool inventory list 4310.

[0123] From the tool list screen 4300, the user can select a power tool to be communicatively connected from the tool inventory 4310. Each type of power tool 3705 with which the external device 3710 can communicate includes an associated tool graphical user interface (tool interface). When the external device 3710 is communicatively connected to the selected power tool, the controller 4200 displays the tool interface of the selected power tool 3705 on the display 4250.

[0124] Figure 44 An example tool interface screen 4315 is shown when the power tool 3705 connected to the external device 3710 is an impact driver. The tool interface screen 4315 includes an icon 4320 for the communicatively connected power tool 3705, which may be the same icon shown in the tool inventory list 4310. The tool interface screen 4315 includes various selectable options for interacting with the connected power tool 3705, such as a tool control option 4325, a manage profile option 4330, a locate tool option 4335, and a factory reset option 4340. The locate tool option 4335 may be selected by a user seeking to locate a power tool 3705 communicatively connected to the external device 3710. For example, when the user of the external device 3710 is at a job site that includes multiple power tools, the user may wish to have the power tool 3705 provide a user-perceivable indication (e.g., emitting a sound, flashing a light, etc.) to assist the user in locating the power tool 3705.

[0125] When the positioning tool option 4335 is selected, the positioning tool screen 4345 is displayed on the display 4250, as shown in FIG. Figure 45 As shown. Position tool screen 4345 provides the user with multiple selectable options for instructing the connected power tool 3705 to perform user-perceivable instructions to assist in positioning the power tool 3705. For example, position tool screen 4345 provides the user with options such as Activate Motor option 4350, Activate Speaker option 4355, and Activate LED option 4360. Selecting Activate Motor option 4350 causes the controller 4200 of the external device to transmit a signal to the power tool 3705 via the wireless communication controller 4260, which causes the motor 3840 to emit a sound. In response to receiving the Activate Motor command from the external device 3710 via the wireless communication controller 3930, the controller 3900 of the power tool 3705 is configured to control the switch module 3925 to apply a high-frequency current signal to the stator coil 4015 of the motor 3840. As described above, under high-frequency excitation, the motor 3840 does not rotate. However, the motor 3840 emits a sound signal within the audible frequency range. Thus, a user of the external device 3710 is able to remotely control the motor 3840 of the power tool 3705 to emit an audible signal when the user attempts to position the power tool 3705 .

[0126] In some embodiments, controller 3900 is configured to control motor 3840 to emit sound for a configured amount of time (e.g., 5 seconds, 1 minute, etc.). In some embodiments, controller 3900 is configured to control motor 3840 to emit sound until the user of external device 3710 sends a second command that causes controller 3900 to stop controlling motor 3840 to emit sound. For example, when motor 3840 is emitting sound, upon finding power tool 3705, the user of external device 3710 can select an option that causes external device 3710 to send a signal instructing controller 3900 to turn off motor 3840. In some embodiments, controller 3900 is configured to control motor 3840 to emit sound until the user of power tool 3705 pulls or activates trigger 3825. In some embodiments, controller 3900 is configured to control motor 3840 to emit sound until the configurable amount of time has passed or expired.

[0127] Similarly, selecting the activate speaker option 4355 causes the external device 3710 to transmit a signal to the power tool 3705 via the wireless communication controller 4260, which causes the speaker included in the power tool 3705 to emit a sound. In response to receiving the activate speaker command from the external device 3710 via the wireless communication controller 3930, the controller 3900 of the power tool 3705 controls the speaker included in the power tool 3705 to emit a sound. Similarly, selecting the activate LED option 4360 causes the external device 3710 to transmit a signal to the power tool 3705 via the wireless communication controller 4260, which causes one or more LED indicators (e.g., indicator light 3830, work light, etc.) included in the power tool 3705 to illuminate. In response to receiving the activate LED command from the external device 3710 via the wireless communication controller 3930, the controller 3900 of the power tool 3705 controls the LED indicator 3830 included in the power tool 3705 to turn on. In some embodiments, the controller 3900 causes the LED indicator 3830 to flash. In other embodiments, controller 3900 illuminates LED indicators 3830 without flashing them. In some embodiments, controller 3900 is configured to activate the speaker and / or illuminate LED indicators 3830 for a configurable amount of time. In some embodiments, controller 3900 is configured to activate the speaker and / or illuminate LED indicators 3830 until a signal is received from external device 3710 that causes controller 3900 to deactivate the speaker and / or LED indicators 3830. In some embodiments, controller 3900 is configured to activate the speaker and / or illuminate LED indicators 3830 until a user operates trigger 3825 of power tool 3705. In some embodiments, LED indicators 3830 can generate different colors of light to indicate different conditions or parameters of power tool 3705 (e.g., green to indicate that a torque setpoint has been reached, red to indicate a joint fault). In some embodiments, only a subset of LED indicators 3830 are illuminated to indicate different conditions or parameters of power tool 3705.

[0128] In some embodiments, the user of external device 3710 can command power tool 3705 to provide one or more audible and visual indications simultaneously. For example, the user of external device 3710 can select to activate motor option 4350 and one or more of: activate speaker option 4355 and activate LED option 4360. When the user of external device 3710 selects to activate motor option 4350 and activate LED option 4360, wireless communication controller 4260 sends one or more signals to power tool 3705, causing motor 3840 to emit a sound and LED indicators to illuminate simultaneously. Thus, in response to wireless communication controller 3930 receiving a signal from external device 3710, controller 3900 is configured to control motor 3840 to emit a sound and illuminate one or more LED indicator lights 3830 simultaneously.

[0129] Figure 46 A process 4600 is shown for locating the power tool 3705 as performed by the controller 3900. The process 4600 begins when the controller 3900 receives a signal from the external device 3710 via the wireless communication controller 3930 commanding the motor 3840 to emit a sound (step 4605).

[0130] In response to receiving a signal from the external device 3710, the controller 3900 is configured to provide one or more high-frequency current signals to the stator coils 4015 of the motor 3840 (step 4610). As described above, the controller 3900 is configured to control the switch module 3925 to selectively supply the high-frequency current from the battery pack 3835 to the motor 3840. When the stator coils 4015 are excited by the high-frequency current signals, the motor 3840 emits an acoustic signal (step 4615). Specifically, the motor 3840 emits the acoustic signal without rotating the rotor 4020 relative to the stator 4025. After the motor 3840 emits the acoustic signal, the controller 3900 is configured to control the switch module 3925 to stop supplying the high-frequency current signal to the stator coils 4015 (step 4620).

[0131] Although the invention has been described in detail with reference to certain preferred embodiments, variations and modifications exist within the scope and spirit of one or more independent aspects of the invention as described.

[0132] The various features of this utility model are described in the following sections:

[0133] Article 1: The power tool comprises: a housing including a motor housing portion, a front housing portion, a rear housing portion, and a handle portion extending from the motor housing portion; a motor disposed within the motor housing portion; a trigger located on the front side of the handle portion; a torque adjustment interface for changing the torque setting of the power tool; and a torque setting indicator disposed on a side of the power tool and configured to indicate the torque setting of the power tool.

[0134] Clause 2: A power tool according to any preceding clause, wherein the torque setting indicator is located on the front housing portion.

[0135] Clause 3: A power tool according to any preceding clause, wherein the torque setting indicator is a set light.

[0136] Clause 4: A power tool according to any preceding clause, wherein the light kit produces patterns associated with different torque settings.

[0137] Clause 5: A power tool according to any preceding clause, wherein the pattern is a flashing light pattern associated with at least one torque setting of the power tool.

[0138] Clause 6: The power tool of any preceding clause, wherein the pattern is a color changing pattern associated with at least one setting of the power tool.

[0139] Clause 7: A power tool according to any preceding clause, wherein at least one of the different torque settings is associated with disengaging a clutch of the power tool.

[0140] Clause 8: The power tool according to any preceding clause, wherein the light set is a shadowless light set configured to illuminate a work surface.

[0141] Clause 9: The power tool of any preceding clause, wherein the torque setting indicator comprises a numerical representation of the torque setting.

[0142] Clause 10: The power tool of any preceding clause, wherein the torque setting indicator includes a mode setting.

[0143] Clause 11: A power tool according to any preceding clause, wherein the torque setting indicator includes a lock indicator.

[0144] Clause 12: The power tool of any preceding clause, wherein the torque setting indicator comprises a clutch indicator.

[0145] Clause 13: An electric tool according to any preceding clause, wherein the clutch indicator indicates a clutch disengagement condition.

[0146] Clause 14: A power tool according to any preceding clause, wherein the clutch indicator indicates that the clutch disengagement condition has been eliminated.

[0147] Clause 15: A power tool according to any preceding clause, wherein the torque setting indicator includes a gauge for indicating the current state of charge of a battery pack for the power tool.

[0148] Clause 16: A power tool according to any preceding clause, wherein the meter is a lighting strip.

[0149] Clause 17: A power tool according to any preceding clause, wherein the torque setting indicator comprises a set of lights forming a ring with different segments illuminated associated with different torque settings.

[0150] Clause 18: A power tool according to any preceding clause, wherein each segment includes a numerical representation of the different torque settings.

[0151] Clause 19: The power tool according to any preceding clause, further comprising a controller configured to control the motor and connected to the torque setting indicator.

[0152] Clause 20: A power tool according to any preceding clause, wherein the torque setting indicator includes a set of lights, and the controller is configured to turn the set of lights on or off.

[0153] Clause 21: The power tool of any preceding clause, wherein the power tool is configured to generate an audible indication associated with the torque setting.

[0154] Clause 22: A power tool according to any preceding clause, wherein the audible indication is produced by the motor.

[0155] Clause 23: A power tool according to any preceding clause, wherein the audible indication is produced by a speaker.

[0156] Clause 24: A power tool according to any preceding clause, wherein the audible indication is associated with a clutch disengaged condition.

[0157] Clause 25: The power tool of any preceding clause, further comprising a tactile feedback indicator associated with the torque setting.

[0158] Clause 26: The power tool of any preceding clause, wherein the tactile feedback indicator is configured to activate during a clutch disengaged condition.

[0159] Clause 27: An electric tool according to any preceding clause, wherein the torque setting indicator is located on the motor housing portion.

[0160] Clause 28: A power tool according to any preceding clause, wherein the torque setting indicator is located on the rear housing portion.

[0161] Clause 29: A power tool according to any preceding clause, wherein the torque adjustment interface is rotatable in a first direction to electronically increase the torque setting and is rotatable in a second direction opposite to the first direction to electronically decrease the torque setting.

[0162] Clause 30: An electric power tool according to any preceding clause, wherein the torque adjustment interface is a dial assembly, the dial assembly comprising a dial housing, a potentiometer, a circuit board and a support.

[0163] Clause 31: A power tool according to any preceding clause, wherein the dial housing includes a top wall, a central post extending through the top wall, and an outer wall, the top wall and the outer wall defining a cavity.

[0164] Item 32: The power tool according to any preceding item, further comprising a block extending from the top wall and the outer wall into the cavity.

[0165] Article 33: A power tool according to any preceding paragraph, wherein the center column includes a first portion extending from the top surface of the dial housing and a second portion extending from the bottom surface of the dial housing, and wherein the first portion is cylindrical in shape and the second portion is partially cylindrical with flat sides.

[0166] Clause 34: A power tool according to any preceding clause, wherein the second portion extends through the central hole of the potentiometer and the central hole of the circuit board and is received in the central recess of the support member.

[0167] Article 35: An electric tool according to any of the preceding paragraphs, wherein the central hole of the circuit board and the central depression of the support member are cylindrical.

[0168] Clause 36: An electric tool according to any preceding clause, wherein the central hole of the potentiometer is cylindrical with flat sides.

[0169] Clause 37: The power tool according to any preceding clause, wherein the support member includes a plurality of bosses and stoppers extending from a top surface of the support member.

[0170] Clause 38: The power tool of any preceding clause, wherein the plurality of bosses are received in holes in the circuit board to secure the circuit board to the support.

[0171] Clause 39: A power tool according to any preceding clause, wherein the retaining tab extends through the cutout in the circuit board.

[0172] Clause 40: The power tool according to any preceding clause, further comprising a stopper mechanism comprising a stopper housing, a biasing member and a ball.

[0173] Item 41: An electric tool according to any preceding item, wherein the ball contacts the outer wall and is pushed into the stopper housing against the biasing member by the outer wall, and as the dial housing is rotated, the ball is pushed into the stopper housing by different distances.

[0174] Item 42: An electric tool according to any preceding item, wherein the outer wall includes a plurality of groove portions and a plurality of raised portions.

[0175] Clause 43: A power tool according to any preceding clause, wherein each groove of the plurality of groove portions is associated with a specific torque setting.

[0176] Article 44: An electric tool according to any preceding paragraph, wherein the electric tool includes a wireless communication controller.

[0177] Article 45: An electric tool comprising a housing, a motor, a trigger, a torque adjustment interface, a torque setting indicator and a controller, wherein the housing comprises a motor housing portion, a front housing portion, a rear housing portion and a handle portion extending from the motor housing portion, the motor is disposed in the motor housing portion, the trigger is located on the front side of the handle portion, the torque adjustment interface is disposed between the front housing portion and the trigger for changing the torque setting of the electric tool, the torque setting indicator is disposed on the side of the electric tool and comprises a set of indicators configured to indicate the torque setting of the electric tool, and the controller is configured to control the motor and is connected to the torque setting indicator.

[0178] Clause 46: A power tool according to any preceding clause, wherein the set of indicators is configured to produce light patterns associated with different torque settings.

[0179] Clause 47: A power tool according to any preceding clause, wherein the pattern is a flashing light pattern associated with at least one torque setting of the power tool.

[0180] Clause 48: A power tool according to any preceding clause, wherein the pattern is a color changing pattern associated with at least one setting of the power tool.

[0181] Clause 49: A power tool according to any preceding clause, wherein at least one of the different torque settings is associated with disengaging a clutch of the power tool.

[0182] Article 50: An electric tool according to any preceding paragraph, wherein the light set is a shadowless light set configured to illuminate a work surface.

[0183] Item 51: A method of operating a power tool, the method comprising: indicating the torque setting of the power tool by a torque setting indicator located on the side of the power tool; and alerting the user of the clutch disengagement condition when the electronic clutch of the power tool is engaged.

[0184] Clause 52: A method according to any preceding clause, wherein indicating the torque setting includes illuminating a set of lights.

[0185] Clause 53: A method according to any preceding clause, wherein alerting the user comprises flashing a set of lights.

[0186] Clause 54: A method according to any preceding clause, wherein alerting the user comprises generating an audible indication.

[0187] Clause 55: A method according to any preceding clause, wherein alerting the user comprises generating a tactile indication.

[0188] Clause 56: The method according to any preceding clause, further comprising wirelessly controlling the power tool via a tool interface of an external device.

Claims

1. An electric tool, characterized in that: include: a housing comprising a motor housing portion, a front housing portion, a rear housing portion, and a handle portion extending from the motor housing portion; a motor, the motor being disposed in the motor housing portion; a trigger located on a front side of the handle portion; A torque adjustment interface, wherein the torque adjustment interface is used to change the torque setting of the power tool; and a torque setting indicator disposed on a side of the power tool and configured to indicate a torque setting of the power tool, Wherein, the torque setting is associated with the disengagement of a clutch of the power tool.

2. The electric tool according to claim 1, wherein: The torque setting indicator is disposed on the front housing portion.

3. The electric tool according to claim 2, wherein: The torque setting indicator is a set light.

4. The electric tool according to claim 3, wherein: The set of lights produces patterns associated with different torque settings.

5. The electric tool according to claim 4, characterized in that The pattern is a flashing light pattern associated with at least one torque setting of the power tool.

6. The electric tool according to claim 4, wherein: The pattern is a color changing pattern associated with at least one setting of the power tool.

7. The electric tool according to claim 3, wherein: The lamp set is a shadowless lamp set that is configured to illuminate a work surface.

8. The electric tool according to any one of claims 1 to 4, characterized in that: The torque setting indicator includes a numerical representation of the torque setting.

9. The electric tool according to any one of claims 1 to 4, characterized in that: The torque setting indicator includes a mode setting.

10. The electric tool according to any one of claims 1 to 4, characterized in that: The torque setting indicator includes a lock indicator.

11. The electric tool according to claim 10, wherein: The torque setting indicator includes a clutch indicator.

12. The electric tool according to claim 11, wherein: The clutch indicator indicates a clutch disengagement condition.

13. The electric tool according to claim 12, wherein: The clutch indicator indicates that the clutch disengaged condition has been eliminated.

14. The electric tool according to any one of claims 1 to 4, characterized in that: The torque setting indicator includes a gauge for indicating a current state of charge of a battery pack for the power tool.

15. The electric tool according to claim 14, wherein: The gauge is a lighting strip.

16. The electric tool according to any one of claims 1 to 4, characterized in that: The torque setting indicator includes a set of lights forming a ring with different segments illuminated associated with different torque settings.

17. The electric tool according to claim 16, wherein: Each segment includes a numerical representation of the different torque settings.

18. The electric tool according to any one of claims 1 to 4, characterized in that: A controller is further included, the controller being configured to control the motor and connected to the torque setting indicator.

19. The electric tool according to claim 18, wherein: The torque setting indicator includes a set of lights, and the controller is configured to turn the set of lights on or off.

20. The electric tool according to claim 19, wherein: The power tool is configured to generate an audible indication associated with the torque setting.

21. The electric tool according to claim 20, wherein: The audible indication is produced by the motor.

22. The electric tool according to claim 20, wherein: The audible indication is produced by a speaker.

23. The electric tool according to claim 20, wherein: The audible indication is associated with a clutch disengaged condition.

24. The electric tool according to any one of claims 1 to 4, characterized in that: Further included is a tactile feedback indicator associated with the torque setting.

25. The electric tool according to claim 24, wherein: The tactile feedback indicator is configured to activate during a clutch disengaged condition.

26. The electric tool according to any one of claims 1 to 4, characterized in that: The torque setting indicator is disposed on the motor housing portion.

27. The electric tool according to any one of claims 1 to 4, characterized in that: The torque setting indicator is disposed on the rear housing portion.

28. The electric tool according to any one of claims 1 to 4, characterized in that: The torque adjustment interface is rotatable in a first direction to electronically increase the torque setting and is rotatable in a second direction opposite the first direction to electronically decrease the torque setting.

29. The electric tool according to claim 28, wherein The torque adjustment interface is a dial assembly, which includes a dial housing, a potentiometer, a circuit board, and a support.

30. The electric tool according to claim 29, wherein: The dial housing includes a top wall, a center post extending through the top wall, and an outer wall, the top wall and the outer wall defining a cavity.

31. The electric tool according to claim 30, wherein: Further included is a block extending from the top wall and the outer wall into the cavity.

32. The electric tool according to claim 31, wherein The center post includes a first portion extending from a top surface of the dial housing and a second portion extending from a bottom surface of the dial housing, and the first portion is cylindrical in shape and the second portion is partially cylindrical with flat sides.

33. The electric tool according to claim 32, wherein: The second portion extends through the central hole of the potentiometer and the central hole of the circuit board and is received in the central recess of the support member.

34. The electric tool according to claim 33, wherein: The central hole of the circuit board and the central recess of the support member are cylindrical.

35. The electric power tool according to claim 34, wherein: The center hole of the potentiometer is cylindrical with flat sides.

36. The electric tool according to claim 35, wherein: The support member includes a plurality of bosses and stoppers extending from a top surface of the support member.

37. The electric tool according to claim 36, wherein: The plurality of bosses are received in holes in the circuit board to secure the circuit board to the support.

38. The electric tool according to claim 37, wherein: The retaining tab extends through a cutout in the circuit board.

39. The electric tool according to claim 38, wherein Further included is a detent mechanism comprising a detent housing, a biasing member, and a ball.

40. The electric tool according to claim 39, wherein: The balls contact the outer wall and are urged by the outer wall into the stopper housing against the biasing member, and are urged into the stopper housing by different distances as the dial housing is rotated.

41. The electric tool according to claim 40, wherein: The outer wall includes a plurality of groove portions and a plurality of raised portions.

42. The electric tool according to claim 41, wherein Each groove of the plurality of groove sections is associated with a specific torque setting.

43. The electric tool according to any one of claims 1 to 4, characterized in that The power tool includes a wireless communication controller.

44. An electric tool, characterized in that: include: Housing, the housing comprising a motor housing portion, a front housing portion, a rear housing portion and a handle portion extending from the motor housing portion; Motor, the motor is placed in the motor housing portion; A trigger located on the front side of the handle portion; a torque adjustment interface disposed between the front housing portion and the trigger for changing a torque setting of the power tool; a torque setting indicator disposed on a side of the power tool and comprising a set of indicators configured to indicate a torque setting of the power tool; and a controller configured to control the motor and connected to the torque setting indicator, Wherein, the torque setting is associated with the disengagement of a clutch of the power tool.

45. The electric power tool according to claim 44, wherein: The set of indicators is configured to generate light patterns associated with different torque settings.

46. ​​The power tool according to claim 45, wherein: The light pattern is a flashing light pattern associated with at least one torque setting of the power tool.

47. The power tool according to claim 45, wherein: The light pattern is a color changing pattern associated with at least one setting of the power tool.

48. The electric tool according to any one of claims 44 to 47, characterized in that The indicator set is a shadowless light set configured to illuminate a work surface.

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