Electrical equipment and electrical equipment systems

Abstract

To provide an electric device which can set optimal or more proper operation parameters suitable for a user and work contents, and to provide an electric device system.SOLUTION: An electric device system includes: an electric device 1 having a drive unit, a control unit which controls the drive unit, an operation unit which instructs activation and stop of the drive unit, and a storage unit which stores operation parameters for driving the drive unit; a radio communication function mounted battery pack 20 attached to the electric device 1; and a portable terminal 80 which may wirelessly communicate with the battery pack 20. Various operation parameters including a control input of the operation unit for activating the drive unit of the electric device 1 may be changed through a management application installed at the portable terminal 80.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an electric device such as a power tool, and an electric device system including the electric device. [Background technology]

[0002] Even when using the same type of electrical equipment, usage differs depending on the user and the type of work, so there is a demand for electrical equipment that can perform tasks optimally suited to the user and the type of work.Patent Document 1 listed below describes that by making it possible to change the setting parameters of an electric power tool via wireless communication from a mobile device, it is possible to select the setting parameters optimal for the task. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-018868 Summary of the Invention [Problem to be solved by the invention]

[0004] The first issue is to make it possible to set operating parameters that suit the user and the work content.

[0005] Furthermore, since the position at which the operation unit is most easily operated varies depending on the size of the user's hand, there is a second problem of being able to set a state (condition) that suits each user.

[0006] The present invention aims to solve at least one of the first and second problems. That is, the present invention aims to provide an electric device and an electric device system that can set optimal or more appropriate operating parameters suited to a user or the type of work, and / or to provide an electric device and an electric device system that can set optimal or more appropriate operating parameters suited to a user while allowing the operation amount (so-called play amount) of an operating unit that activates a motor to be set to a position suited to the user. [Means for solving the problem]

[0007] One aspect of the present invention is an electric device. A drive unit; a control unit that controls the drive unit; an operation unit that instructs the driving unit to start and stop; a storage unit that stores operation parameters for driving the drive unit; Equipped with The rotation speed of the drive unit is changed in accordance with the amount of operation of the operation unit, The operating parameters are: From a first state in which the operating unit is not operated and the drive unit is not rotating In order for the drive unit to reach its maximum rotation speed necessary The operation amount of the operation unit The first control variable is and the maximum rotation speed, When the maximum rotation speed is constant, Can The aforementioned No. 1 The control amount can be changed in three or more stages via wireless communication with an external device. It is characterized by:

[0008] the operating parameters include a minimum rotation speed at which the drive unit starts rotating; When the minimum rotation speed and the maximum rotation speed are constant, Can The aforementioned No. 1 The manipulated variable may be configured to be changeable by wireless communication with the external device.

[0009] the operation parameters include a speed change characteristic that is a curve of the number of rotations of the drive unit according to the operation amount of the operation unit after the drive unit starts to rotate, The gear shift characteristics may be changeable via wireless communication with the external device.

[0015] Another aspect of the present invention is an electric equipment system, comprising: The electrical device; the external device capable of communicating with the electrical device and having a management application installed thereon for changing the operating parameters; An electrical equipment system comprising: The external device is an input unit for inputting the operation parameters; a display unit that displays the operating parameters; having It is characterized by:

[0016] The input unit a customize button for switching the display unit to a screen for changing the operating parameters; a slider for changing the operating parameter; a registration button for registering the operation parameters; and The operation parameter may be changeable in multiple stages by changing the position of the slider.

[0020] Any combination of the above components and conversion of the present invention between methods, systems, etc. are also valid aspects of the present invention. [Effects of the Invention]

[0021] According to the electric device and electric device system of the present invention, it is possible to set optimal or more appropriate operating parameters for the drive unit according to the user and the type of work. Furthermore, when selecting the operation amount (so-called play amount) of the operating unit that activates the drive unit as an operating parameter, it is possible to set the play amount to a position that suits the user, while also setting other operating parameters optimal or more appropriate for the user. Therefore, it is possible to set optimal or more appropriate operating parameters for the electric device that are easier to use for more users than before. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is a schematic explanatory diagram of an electric device and an electric device system according to an embodiment of the present invention; [Figure 2] 1 is a side cross-sectional view of an electric device 1 according to an embodiment. [Figure 3] FIG. 10 is an explanatory diagram showing the trigger switch and its surrounding parts of an electrical device 1, in which (A) the range of trigger pull amounts for which the rotation speed can be controlled when the trigger switch 9 has little play, and (B) the range of trigger pull amounts for which the rotation speed can be controlled when the play is large, are indicated by arrows. [Figure 4] FIG. 2 is a plan view showing a mode switching unit 11 of the electrical device 1. [Figure 5] 2 is a plan view showing a panel portion 27 of the wireless communication function-equipped battery pack 20 according to the embodiment. FIG. [Figure 6] 1 is a circuit diagram of an electric device system including an electric device 1 (electric device main body), a battery pack 20, and a mobile terminal 80. [Figure 7] 4 is a graph showing an example of changing the amount of play as a relationship between the trigger pull amount in the electric device 1 and the rotation speed of the electric device 1. [Figure 8] 10 is a graph showing the relationship between the trigger pull amount and the rotation speed of the electrical device 1, illustrating an example of changing the minimum rotation speed. [Figure 9] 10 is a graph showing an example of a change in speed characteristic, which is a relationship between the trigger pull amount and the rotation speed of the electric device 1. [Figure 10] 10 is a graph showing the relationship between the trigger pull amount and the rotation speed of the electrical device 1, illustrating an example of changing the amount of play and the minimum rotation speed. [Figure 11] 10 is a graph showing the relationship between the trigger pull amount and the rotation speed of the electric device 1, illustrating an example of change in the amount of play and the speed change characteristics. [Figure 12] 10 is a graph showing the relationship between the trigger pull amount and the rotation speed of the electric device 1, illustrating the amount of play, the minimum rotation speed, and an example of changes in the speed change characteristics. [Figure 13] 10 is a graph showing the relationship between the trigger pull amount and the rotation speed of the electrical device 1, illustrating an example of changing the trigger position for the maximum rotation speed. [Figure 14] 10 is a graph showing the relationship between the trigger pull amount and the rotation speed of the electrical device 1, illustrating an example of changing the maximum rotation speed. [Figure 15] 10 is a graph showing the relationship between the trigger pull amount and the rotation speed of the electric device 1, illustrating examples of changing the maximum rotation speed trigger position and the maximum rotation speed. [Figure 16]10 is a graph showing the relationship between the trigger pull amount and the rotation speed of the electric device 1, illustrating examples of changes in the maximum rotation speed trigger position and the speed change characteristics. [Figure 17] 10 is a graph showing the relationship between the trigger pull amount and the rotation speed of the electric device 1, illustrating the maximum rotation speed trigger position, the maximum rotation speed, and an example of changing the speed change characteristics. [Figure 18] 4 is a graph showing the relationship between time and the number of rotations in the electric device 1, illustrating an example of a change in acceleration characteristics when the trigger pull amount is maximized. [Figure 19] 4 is a graph showing the relationship between the trigger pull amount and the signal voltages of the ON signal and the trigger displacement signal in the electrical device 1, and the relationship between the trigger pull amount and the rotation speed. [Figure 20] 4 is a graph showing the relationship between time and the signal voltage of an ON signal and a trigger displacement signal, and the relationship between time and the rotation speed in the electrical device 1. [Figure 21] The screens are of a mobile terminal 80 that has installed a management application that customizes various settings of electrical equipment 1 (the electrical equipment itself, referred to as "tool" on the following screens) and selects battery pack 20 (referred to as "storage battery" on the following screens), where (A) is the registration list screen (no registration image) and (B) is the new storage battery registration screen. [Figure 22] 10A and 10B are screens of the mobile terminal 80, in which (A) is a screen for registering a nickname for a storage battery in a connected state, and (B) is a screen for registering a photographed image of a storage battery in a connected state. [Figure 23] 10A and 10B are screens of the mobile terminal 80, in which (A) is a storage battery information display screen in a connected state (no tool connected), and (B) is a storage battery information display screen in which a tool as an electrical device 1 is connected. [Figure 24] 10A and 10B are screens of the mobile terminal 80, in which (A) is a screen for registering a nickname of a connected tool, and (B) is a screen for registering a photographed image of a connected tool. [Figure 25] Also shown are screens of the mobile terminal 80, where (A) is a tool information display screen that displays the connected tools and storage batteries and allows the user to select customization adjustment of the tool switch feeling, and (B) is a feeling adjustment screen that allows the user to customize the tool switch feeling. [Figure 26] 10A and 10B are screens of the mobile terminal 80, in which (A) is a screen for saving customized setting values ​​after customizing and adjusting the switch feeling, and (B) is a setting list screen of the saved customized setting values. [Figure 27] Also shown are screens of a mobile terminal 80, where (A) is a setting list screen (initial state) that displays only the default or classic mode (old default mode) of the switch feeling, and (B) is an editing screen of a saved setting list. [Figure 28] 10A and 10B are screens of the mobile terminal 80, in which (A) is a registration list screen (all) that can display all registered selectable tools and storage batteries, and (B) is a registration list screen (registered but not connected). [Figure 29] 10A and 10B are screens of the mobile terminal 80, where (A) is a tool list screen (tools only) displaying selectable tools, and (B) is a tool list screen (batteries only) displaying selectable batteries. [Figure 30] Also on the screen of the mobile terminal 80, (A) is a tool list screen (folded) that allows searching for tools and batteries registered in the list, and (B) is a battery information display screen that displays specific selected tools and batteries and allows editing of batteries (disconnecting or deleting them from the list). [Figure 31] Also shown are screens of a mobile terminal 80, where (A) is a tool information display screen (not connected) that allows editing (customization or deletion from the list) of a specific selected tool, and (B) is a battery information display screen (not connected) that allows editing (deletion from the list) of a specific selected battery. [Figure 32] 10 is a menu screen that displays how to use the management application installed on the mobile terminal 80. [Figure 33] 1 is an explanatory diagram showing the flow of connecting and registering an unregistered electrical device 1 (labeled "tool") and an unregistered battery pack 20 (labeled "battery") using a management application. [Figure 34] FIG. 10 is an explanatory diagram showing the flow from connection to registration completion of registered tools and registered batteries using the management app. [Figure 35]FIG. 10 is an explanatory diagram showing a flow of completing the connection of a registered tool and a registered battery using a management application and the subsequent completion of changing customized settings. [Figure 36] Flowchart for customizing the feel of a tool. [Figure 37] An explanatory diagram for sharing settings that customize the tool feeling. [Figure 38] FIG. 10 is an explanatory diagram including a display screen of a mobile terminal 80 when the setting values ​​are shared. DETAILED DESCRIPTION OF THE INVENTION

[0023] In the following, identical or equivalent components, members, etc. shown in each drawing are denoted by the same reference numerals, and redundant explanations will be omitted where appropriate. The embodiments are illustrative and do not limit the invention. All features and combinations thereof described in the embodiments are not necessarily essential to the invention.

[0024] 1 is a schematic diagram of an electric device and an electric device system according to an embodiment of the present invention. As shown in this diagram, a mobile terminal 80 as an external device with a wireless communication function, such as a user's smartphone, and a battery pack 20 with a wireless communication function can be interconnected via wireless communication, and an electric device (electric device main body, i.e., a power tool main body) 1 and the attached battery pack 20 are interconnected via wired communication.

[0025] The mobile terminal 80 transmits customized setting values ​​to the battery pack 20, and the battery pack 20 transmits tool and battery information to the mobile terminal 80. The customized setting values ​​are transmitted (transferred) from the battery pack 20 to the electric device 1. The electric device 1 transmits tool information to the battery pack 20. The user uses the mobile terminal 80 to manage the registration list of the electric device 1 and the battery pack 20 and customize the tools. Details will be described later.

[0026] FIG. 2 is a side cross-sectional view of the electrical device 1 connected to a battery pack 20. FIG. 2 defines the mutually perpendicular front-rear and up-down directions of the electrical device 1. The front-rear direction is a direction parallel to the central axis of the output shaft 3a of the motor 3 serving as a drive unit. The electrical device 1 is an electric power tool, specifically a cordless impact driver. The electrical device 1 includes a housing 2. The housing 2 includes a body portion (cylindrical portion) 2a, a handle portion 2b, and a battery pack attachment portion 2c. The body portion 2a of the housing 2 is cylindrical, and its central axis is parallel to the front-rear direction. The handle portion 2b extends downward from the middle portion of the body portion 2a. The battery pack attachment portion 2c is provided at the lower end of the handle portion 2b.

[0027] The body 2a includes, from rear to front, a fan 4, a stator and rotor of the motor 3 (which serves as the drive unit), a sensor / inverter circuit board 12, a planetary gear mechanism (reduction mechanism) 5, a spindle 6, a hammer 7, and an anvil 8. The fan 4 is directly connected to the output shaft 3a of the motor 3 (which serves as the drive unit) and rotates together with the motor 3, generating cooling air within the housing 2. The motor 3 is an inner-rotor brushless motor in this example. The sensor / inverter circuit board 12 is housed in the body 2a so that it is perpendicular to the front-to-rear direction. Specifically, it is supported (fixed) by an insulator attached to the stator of the motor 3. The sensor / inverter circuit board 12 has a magnetic sensor 13, such as a Hall IC, mounted on its rear surface and multiple switching elements 14 mounted on its front surface. The magnetic sensor 13 is used to detect the rotational position of the motor 3. The switching elements 14 are used to supply current to the motor 3. The multiple switching elements 14 correspond to the switching elements Q1 to Q6 in FIG. 6. The output shaft 3a of the motor 3 extends forward through the sensor inverter circuit board 12. The planetary gear mechanism 5 reduces the speed of the motor 3 and transmits it to the spindle 6. The hammer 7 rotates together with the spindle 6, rotating or rotary striking the anvil 8. A tip tool such as a bit (not shown) is attached to the anvil 8. The spindle 6, hammer 7, and anvil 8 are examples of driven parts, and constitute a well-known rotary striking mechanism (impact mechanism).

[0028] The handle portion 2b is the portion that the operator grips, and is provided at the front upper end thereof with a trigger switch 9, shown enlarged in Figures 3(A) and (B). The trigger switch 9 is an operation part that the operator uses to switch between driving and stopping the motor 3. Figure 3(A) shows the range of trigger pull amounts over which the rotation speed can be controlled when the trigger switch 9 has little play, and Figure 3(B) shows the range of trigger pull amounts over which the rotation speed can be controlled when the play is great, both indicated by arrows.

[0029] An electrical appliance control board 10 is provided at the top inside the battery pack mounting section 2c. The electrical appliance control board 10 is housed in a board case and coated with resin, and the board case is supported by the battery pack mounting section 2c. The electrical appliance control board 10 is provided with a calculation unit 40 and the like shown in FIG. 6. The calculation unit 40 includes a microcomputer and functions as a control unit. A mode switching unit 11 serving as the device-side display unit of FIG. 4 is provided on the top surface of the battery pack mounting section 2c. The mode switching unit 11 includes an operation unit 11b for switching the operating mode of the electrical device 1 between, for example, strong (high speed), medium (medium speed), and weak (low speed) modes, or for switching among soft (weak) mode for driving at a low speed, power mode (strong) for driving at a high speed, bolt mode for tightening bolts, single-shot bolt mode for stopping the motor 3 after one strike in bolt mode, and text mode for reducing the rotation speed of the motor 3 once the screw is seated. The mode switching unit 11 also includes a display unit (four LEDs arranged vertically in the center of FIG. 4) for displaying the current mode selected by the operation unit 11b, and a light button 11c for turning on and off a light that illuminates the area around the tool. The display unit has four LEDs, and the one that lights up changes each time the operation unit 11b is pressed. The top LED on the display lights up when soft mode is selected, the second LED from the top lights up when power mode is selected, the third LED from the top lights up when bolt mode and single-shot bolt mode are selected, and the bottom LED from the top lights up when text mode is selected. The third LED from the top lights up when bolt mode is selected and flashes when single-shot bolt mode is selected. Furthermore, the second LED from the top also serves as an App display section 11a that displays the setting status of operation parameters to support a management application, which will be described later.

[0030] Here, the portion of the electrical device 1 excluding the battery pack 20 is defined as the main body of the electrical device 1 (electrical device main body). The main body of the electrical device 1 has a battery pack mounting portion 2c as a connection portion to which the battery pack 20, which serves as the power source for the motor 3, is connected. However, as shown in FIG. 1 and FIG. 6 described later, for example, the main body of the electrical device 1 (electrical device main body) may also be simply referred to as the electrical device 1.

[0031] A battery pack 20 is connected to the battery pack attachment section 2c. The battery pack 20 accommodates battery cells and a battery control board 25. The battery control board 25 is equipped with a communication section (battery communication section) 26 for short-range wireless communication. The communication section 26 is, for example, a Bluetooth Low Energy (BLE) module. A panel section 27 is provided on the outer surface of the battery pack 20. As shown in FIG. 5, the panel section 27 is provided with an operation button 27a for displaying the remaining charge of the battery pack 20 and for switching the short-range wireless communication function on and off. When the operation button 27a is pressed briefly, an LED on the left side serves as a display section and lights up in accordance with the remaining battery charge, and the status can be seen through a window 27b. The more the remaining battery charge, the more LEDs (LEDs visible through the window 27b) that light up. When the operation button 27a is pressed and held, an LED provided at a position corresponding to the rightmost window 27b flashes, and the battery pack 20 is connected to an external device, such as a mobile terminal 80. When the connection is complete, the LED provided at a position corresponding to the rightmost window 27b lights up. Two different colored LEDs (e.g., green and blue) are provided at the position corresponding to the rightmost window 27b, one for displaying the remaining battery level and the other for wireless communication. A single type of LED (e.g., green) is provided at the positions corresponding to the first three windows 27b from the left. When the operation button 27a is pressed briefly, four green LEDs light up according to the remaining battery level. When the operation button 27a is pressed and held, the blue LED at the rightmost blinks. Each LED is mounted on the battery control board 25.

[0032] 6 is a circuit diagram of an electrical device system including an electrical device 1 (electrical device main body) equipped with a battery pack 20 and a mobile terminal 80. In this diagram, the battery pack 20 has a battery cell set 21, a calculation unit 22 as a battery control unit, a memory unit 23 as a battery memory unit, and a communication unit 26 as a battery communication unit. The battery cell set 21 is made up of a plurality of battery cells such as lithium ion secondary battery cells. The number of series connections and the number of parallel connections of the plurality of battery cells are arbitrary. The calculation unit 22 includes a microcontroller (microcomputer) or the like, and communicates (wired communication) with a calculation unit 40 as a device control unit of the electrical device 1, and controls the communication unit 26. The memory unit 23 stores unique information of the battery pack 20, such as the model name and serial number. The communication unit 26 communicates (wireless communication) with a communication unit 85 of the mobile terminal 80. The calculation unit 22 and memory unit 23 are also mounted on a battery control board 25. Memory unit 23 may be separate from the calculation unit 22 or may be built into the calculation unit 22.

[0033] The mobile terminal 80 has a control unit 81 as a terminal control unit, a storage unit 82 as a terminal storage unit, a display unit 83, an operation unit 84 that functions as an input unit, a communication unit 85 as a terminal communication unit, and a battery 86. If the mobile terminal 80 is a smartphone or a tablet terminal, the screen of the smartphone or tablet terminal serves as the display unit 83 and the operation unit 84. The communication unit 85 has a short-range wireless communication function such as Bluetooth (registered trademark) and communicates with the communication unit 26 of the battery pack 20. A management app is installed in the storage unit 82. The control unit 81 executes each function of the management app. The management app enables the display unit 83 to display operating parameters of the electrical device 1, as will be described later.

[0034] In the electric device 1, switching elements Q1 to Q6 provided on the sensor / inverter circuit board 12 are three-phase bridge-connected to form an inverter circuit. The switching elements Q1 to Q6 perform switching operations under the control of a calculation unit 40 and supply drive power to the motor 3. A magnetic sensor 13 provided on the sensor / inverter circuit board 12 transmits an electric signal corresponding to the rotational position of the motor 3 to a rotational position detection circuit 44. The electric device control board 10 is provided with the calculation unit 40 as an electric device control unit, a current detection circuit 41, a switch operation detection circuit 42, a control signal circuit (control signal output circuit) 43, a rotational position detection circuit 44, a rotation speed detection circuit 45, and a memory unit (electrical device memory unit) 46.

[0035] The current detection circuit 41 detects the current of the motor 3 from the voltage of a resistor R provided in the current path of the motor 3 and outputs the detected current to the calculation unit 40. The switch operation detection circuit 42 detects the operation of the trigger switch 9 and outputs the detected current to the calculation unit 40. The control signal circuit 43 applies a control signal (e.g., a PWM signal) to each control terminal of the switching elements Q1 to Q6 under the control of the calculation unit 40. The rotational position detection circuit 44 detects the rotational position of the motor 3 from a signal from the magnetic sensor 13 and outputs the detected current to the calculation unit 40. The rotation speed detection circuit 45 detects the rotation speed of the motor 3 from the signal from the rotational position detection circuit 44 and outputs the detected current to the calculation unit 40. The storage unit 46 stores information specific to the electric device 1, usage history information of the electric device 1, operating parameters for driving the motor 3, etc. The operating parameters include those added and edited by a management app on the mobile terminal 80. The storage unit 46 may be separate from the calculation unit 40 or may be built into the calculation unit 40. The storage unit 46 is configured with a non-volatile memory that can retain stored information even when power is not supplied. The calculation unit 40 controls the on / off (e.g., PWM control) of the switching elements Q1 to Q6 via the control signal circuit 43 in accordance with the operation of the trigger switch 9, the rotation position and rotation speed of the motor 3, and the current of the motor 3, thereby controlling the drive of the motor 3.

[0036] FIG. 7 shows the relationship between the trigger pull amount [mm] (the operation amount of the operation part) and the rotation speed [mi] of the electrical device 1 for the trigger switch 9 as the operation part of the electrical device 1.n 7 shows a graph illustrating an example of changing the amount of free play in relation to the trigger pull amount [1]. When the electrical device 1 has the impact driver structure shown in FIG. 2, the rotational speed is the unloaded rotational speed of the anvil 8 (proportional to the rotational speed of the motor 3) that holds the tool bit (the same applies below). In the illustrated example, the trigger free play is adjustable from less than 2 mm to approximately 3 mm of trigger pull. When the trigger pull amount exceeds the set trigger free play, the motor 3 (anvil 8) begins to rotate. After starting at the minimum rotational speed, the rotational speed increases as the trigger pull amount increases. When the trigger pull amount reaches the upper limit (maximum rotational speed) for the controllable rotational speed, the maximum rotational speed is reached and maintained thereafter. As can be seen from FIG. 7, the maximum rotational speed and the trigger pull amount (maximum operation amount) until the maximum rotational speed is reached remain constant (unchanged) regardless of changes to the trigger free play setting. Therefore, the acceleration characteristics (the curve of the rotational speed depending on the trigger pull amount, also known as the speed change characteristic) differ from when the trigger free play is exceeded until the maximum rotational speed is reached. In other words, when the trigger play setting is changed, the acceleration characteristics until the maximum rotation speed is reached are automatically changed (modified). This prevents the maximum rotation speed from being reached when the trigger operation amount is at its maximum. vinegar However, if the trigger pull amount required to reach the maximum RPM is changed according to the trigger play, in other words, if the acceleration characteristics are not changed but are simply shifted according to the trigger play (the RPM curve according to the trigger pull amount is the same), there is a possibility that the maximum RPM will not be reached when the trigger operation amount is maximized.

[0037] Furthermore, the motor activation position (so-called play amount) by the trigger switch 9 can be changed according to the size and preference of the user's hand, making it easier for the user to use and improving operability. For example, by increasing the play amount if the user has small hands, and decreasing it if the user has large hands, the operational feel can be improved (uniformed).

[0038] 8 is a graph showing an example of changing the minimum rotation speed, which is also the relationship between the trigger pull amount and the rotation speed of the electrical device 1. In this case, the minimum rotation speed at the start of rotation can be changed within a range of less than 500 rotations per minute.

[0039] The minimum rotation speed can be changed, so it can be set to suit the type of screw being used, improving workability. For example, it can be set to prevent thread stripping or make tapping easier. A low minimum rotation speed is suitable for delicate work that requires a low speed, such as fastening short screws. In this case, as is clear from Figure 8, the maximum rotation speed is reached with the same trigger pull regardless of whether the minimum rotation speed setting is changed. Therefore, the acceleration characteristics (speed change characteristics) from the set minimum rotation speed to the maximum rotation speed are automatically changed.

[0040] Figure 9 is a graph showing an example of changing the speed change characteristics, similarly showing the relationship between the trigger pull amount and the rotation speed of the electrical device 1. In this case, the minimum and maximum rotation speeds are constant, but the degree of change in rotation speed between them can be set to vary. In other words, the set rotation speed of the motor can be changed according to the trigger operation after the motor has started.

[0041] In addition, by combining it with a soft start function that slows down the change in rotation speed over time, if you want to adjust when changing to full speed after tapping at low to medium speed, you can check the thread engagement at an ultra-low speed with machine screws and then suddenly switch to full speed to run the lead of the screw (soft start function small).Also, with wood screws, the speed change characteristics make it easy to adjust to a medium speed that makes it easier to drive the screw in to a certain extent, and once the screw is set, you can gradually increase the rotation speed to prevent cam-out and strike (soft start function large).

[0042] FIG. 10 is a graph showing the relationship between the trigger pull amount and the rotation speed of the electrical device 1, illustrating an example of changing the amount of free play and the minimum rotation speed. In this case, the maximum rotation speed is constant, but the amount of free play and the minimum rotation speed can be set to different values. As is clear from FIG. 10, the maximum rotation speed is reached with the same trigger pull amount regardless of changes to the set values ​​of the trigger free play and the minimum rotation speed. Therefore, the acceleration characteristics (gear shift characteristics) from the set minimum rotation speed (exceeding the trigger free play) to the maximum rotation speed are automatically changed.

[0043] The advantage of changing the minimum rotation speed is that you can select an ultra-slow rotation speed to prevent machine screws from stripping, or a low rotation speed that makes it easy to tap wood screws. However, when trying to adjust the speed to a low speed using the trigger switch, the position that is easiest to adjust varies depending on the size of the user's hand. By making it possible to adjust the amount of play in addition to adjusting the minimum rotation speed, users with large hands can reach even at farther positions, so setting the amount of play small makes it easy to set to a low speed range. Users with small hands have difficulty operating at farther positions, so setting the amount of play large makes it easy to set to a low speed range.

[0044] 11 is a graph showing an example of changing the amount of free play and the gear shift characteristics, similarly showing the relationship between the amount of trigger pull and the rotation speed of the electrical device 1. In this case, the minimum and maximum rotation speeds are constant, but the amount of free play and the gear shift characteristics can be set to be different.

[0045] The advantage of changing the shifting characteristics is that it is possible to select settings that make it easier to make fine adjustments in the low speed range or the medium speed range, for example. However, the position that is easiest to adjust varies depending on the size of the user's hand, but by adjusting the amount of play in conjunction with adjusting the shifting characteristics, an optimal or more appropriate setting is possible. In other words, users with large hands can reach even farther away, so setting the amount of play small makes it easier to use even when the shifting characteristics have been changed. Users with small hands have difficulty operating at farther away, so setting the amount of play large makes it easier to use even when the shifting characteristics have been changed.

[0046] Figure 12 is a graph showing the relationship between the trigger pull amount and the rotational speed of the electrical device 1, illustrating examples of changes in the amount of free play, minimum rotational speed, and shifting characteristics. In this case, the maximum rotational speed is constant, but the amount of free play, minimum rotational speed, and shifting characteristics can be set to different values. This allows for even more diverse settings than those in Figures 10 and 11.

[0047] 13 is a graph showing an example of changing the maximum rotation speed trigger position, similarly showing the relationship between the trigger pull amount and the rotation speed of the electrical device 1. In this case, the minimum rotation speed and the maximum rotation speed are constant, but the maximum rotation speed trigger position, i.e., the trigger pull amount at which the maximum rotation speed is reached, can be changed, and the maximum rotation speed trigger position can be set within a range of approximately 5 to 7 mm.

[0048] 14 is a graph showing an example of changing the maximum rotation speed, which is the relationship between the trigger pull amount and the rotation speed of the electrical device 1. The maximum rotation speed can be adjusted within the range of 2000 to 3500 rotations per minute.

[0049] A high maximum rotation speed setting is appropriate when the user is familiar with handling tools and wants to work quickly, while a low maximum rotation speed setting is appropriate when the user is not familiar with handling tools. However, this has the advantage of being able to set the maximum rotation speed according to the user's level of proficiency.

[0050] 15 is a graph showing the relationship between the trigger pull amount and the rotation speed of the electrical device 1, and also showing examples of the maximum rotation speed trigger position and the maximum rotation speed change. The minimum rotation speed is constant, but the maximum rotation speed trigger position can be set within a range of approximately 5 to 7 mm, and the maximum rotation speed can be adjusted within a range of 2000 to 3500 rotations per minute.

[0051] 16 is a graph showing an example of changing the maximum rotation speed trigger position and the gear shift characteristics, similarly showing the relationship between the trigger pull amount and the rotation speed of the electrical device 1. In this case, the minimum and maximum rotation speeds are constant, but the maximum rotation speed trigger position can be set within a range of approximately 5 to 7 mm, making it possible to change the gear shift characteristics.

[0052] The advantage of changing the shift characteristics is that it is possible to select settings that make it easier to fine-tune at low speeds or at medium speeds, for example. However, the position that is easiest to adjust varies depending on the size of the user's hand, so by making it possible to adjust the maximum RPM trigger position in addition to adjusting the shift characteristics, more appropriate settings can be made.

[0053] 17 is a graph showing the relationship between the trigger pull amount and the rotation speed of the electrical device 1, illustrating the maximum rotation speed trigger position, the maximum rotation speed, and examples of changes in the speed change characteristics. In this case, the minimum rotation speed is constant, but the maximum rotation speed trigger position can be set within a range of approximately 5 to 7 mm, the maximum rotation speed can be adjusted within a range of 2000 to 3500 rotations per minute, and the speed change characteristics can also be changed.

[0054] Fig. 18 is a graph showing the relationship between time and rotation speed of the electrical device 1, illustrating an example of changing the acceleration characteristics when the trigger pull is maximized. The time it takes for the motor to reach a constant speed after starting can be changed. In other words, the soft start setting value can be changed.

[0055] A high rotation speed increase rate setting is appropriate when the user is familiar with handling the tool and wants to work quickly, while a low rotation speed increase rate setting is appropriate when work speed is not an important factor and cam-out prevention is desired. The rotation speed increase rate can be set according to the user's level of proficiency.

[0056] 19 is a graph showing the relationship between the amount of trigger pull and the signal voltages of the ON signal and trigger displacement signal, as well as the relationship between the amount of trigger pull and the number of rotations in the electrical device 1. In this case, a trigger ON signal is output from the switch operation detection circuit 42 to the calculation unit 40 (the ON signal rises) when the trigger pull is at a position of approximately 1 mm, and a trigger displacement signal is output from the switch operation detection circuit 42 to the calculation unit 40 when the trigger pull is at a position of approximately 2 mm, and thereafter the voltage value of the trigger displacement signal increases linearly towards 5V in proportion to the increase in the amount of trigger pull. When such a trigger ON signal and trigger displacement signal are input, the calculation unit 40 outputs a drive signal corresponding to these signals to the control signal circuit 43, and the control signal output circuit 43 operates in an inverter circuit RoadThe motor 3 is rotated by outputting a control signal to each control terminal of the switching elements Q1 to Q6. The rotation speed of the motor 3 (anvil 8) varies from the minimum rotation speed to the maximum rotation speed in response to this control signal. By changing the slope of the trigger displacement signal, the time until the motor reaches the maximum rotation speed (soft start setting value, speed change characteristic setting value) can be changed. Note that "maximum rotation speed" has the same meaning as "highest rotation speed."

[0057] Figure 20 is a graph showing the relationship between time and the signal voltage of the ON signal and trigger displacement signal, as well as the relationship between time and the rotation speed of electrical device 1. In this case, when the trigger pull is increased from zero to its maximum, the trigger ON signal rises, and at the same time, the trigger displacement signal rises rapidly to 5V. This trigger displacement signal causes the rotation speed to rise from zero at startup to 3,000 rotations per minute. By changing the slope of the trigger displacement signal, it is possible to change the time it takes for the motor to reach its maximum rotation speed when the trigger pull is at its maximum (soft start setting value) and the operating parameters (speed change characteristic setting value) related to the degree of rotation speed change between the minimum and maximum rotation speeds depending on the trigger pull amount.

[0058] 21(A) shows a registration list screen (registered tools, no storage battery) of a mobile terminal 80 that has installed a management app that customizes various settings of electrical equipment 1 (referred to as "tools" on the screen below) and selects a battery pack 20 (referred to as "storage battery" on the screen below), and (B) shows a new registration screen for a connectable product, in this case a storage battery that is searching for a battery pack 20 (not connected). Figure 21(A) shows that after launching the management app, when "All" is tapped out of the "All," "Tools," and "Storage Battery" buttons at the bottom of the screen, there are no registered tools or storage batteries.

[0059] Figure 5 electricWhen the operation button 27a of the battery pack 20 is pressed and held, the blue LED (window 27b) on the right edge of the panel unit 27 starts flashing, putting the battery pack into a connection standby state. Tapping the + button 801 on the screen shown in FIG. 21(A) displays the number of storage batteries in a communication-enabled state (1 in the figure). Tapping the button while the number is displayed transitions to a screen shown in FIG. 21(B) for searching for connectable products (tools and storage batteries). The screen displays the model name of the storage battery in a communication-enabled state. In this example, a "BT1100" storage battery is searched for, indicating that it is not connected. Tapping the "not connected" character 802 next to the storage battery model name on the screen shown in FIG. 21(B) connects the displayed storage battery. When the connection is complete, the blue LED located in the position corresponding to the window 27b on the right edge lights up, and the screen transitions to the screen shown in FIG. 22(A).

[0060] Figure 22(A) is the screen for registering the nickname of a connected storage battery, and when you enter a nickname, for example "Battery 1," in the nickname input popup and tap the OK button, you will be transferred to the screen for registering a photograph of the connected storage battery in (B). In the same figure (B), if you select and register either "Take a photo," "Select from photo" (a catalog photo is provided by default), or "Set later," you will be transferred to the storage battery information display screen (with no tool connected) in Figure 23(A).

[0061] FIG. 23(A) shows the battery information display screen (with no tool connected) that displays information such as the model name of the connected storage battery. It allows operations such as changing the nickname and image (photo), disconnecting, and deleting the storage battery registration. When a compatible tool is connected to the storage battery and the operation unit 11b (shown in FIG. 4 on the electrical device 1) is pressed to align the display area with the App display unit 11a, the App display unit 11a lights up in the color (e.g., red) that it had before the operating parameters were set. Furthermore, connecting a compatible tool to the storage battery transitions to the battery information display screen (with no registered tool) shown in FIG. 23(B). In FIG. 23(B), tapping the tool connection status display button 803 (displaying "Unconfigured IPD220") for the connected compatible tool transitions to the nickname registration screen for the connected tool shown in FIG. 24(A).

[0062] On the registration screen of Fig. 24(A), when a nickname, for example "Impact 1," is entered in the nickname input pop-up and the OK button is tapped, the screen transitions to a registration screen of a photographed image of the connected tool shown in Fig. 24(B). On Fig. 24(B), when either "Take a photo," "Select from photo" (a catalog photo is provided by default), or "Set later" is selected for registration, the screen transitions to the tool information display screen shown in Fig. 25(A). Information such as the photo of the battery pack 20 and the tool as the electrical device 1, the nickname, etc. are saved in the memory of the app (external device).

[0063] Figure 25(A) shows the tool information display screen, displaying information such as the model name of the connected tool. It also allows for operations such as changing the nickname and image (photo) and deleting the tool registration. Tapping the "feeling adjustment" button 804 in the "Customize - Switch Feeling" section transitions to the "feeling adjustment" screen shown in Figure 25(B). This "feeling adjustment" screen allows for adjustment of the feel of the trigger switch 9 of the electrical device 1, i.e., changing the operating parameter settings. A "feeling change" slider 805 is displayed for items such as "switch play," "minimum RPM," "maximum RPM," "soft start" (the time it takes to reach maximum RPM when the trigger is operated to its maximum), and "low-speed range" (an example of how the set RPM changes depending on the trigger operation), which corresponds to the change in the set RPM in response to the trigger operation. By changing the position of the feeling change slider 805, adjustments can be made in multiple steps, e.g., five steps. The current setting out of the five steps is displayed next to each item. Continuous adjustment is also possible. By tapping the "Register this setting as a new setting in the list" button 806 in the same figure (B), the setting value is sent to the tool and the screen transitions to the customized setting value saving screen after the switch feeling customization adjustment in Figure 26 (A).

[0064] On the customized setting value save screen in Figure 26(A), enter a setting value name in the name input pop-up and tap the OK button to complete saving. As the setting value name, the material to be processed by the tool (square timber, aluminum plate, plywood, etc.) and thickness, etc. can be entered. Thereafter, the electrical device 1 can be used with this customized setting value. At this time, the App display unit 11a in Figure 4 lights up in a color (e.g., blue) different from the color before the operating parameters were set, indicating that the operating parameter changes have been set. Instead of changing the display color, the display color may blink to indicate that the settings have been set.

[0065] Figure 26(B) is a setting list screen that allows you to select a list of saved names for customized switch feelings. The setting list allows you to input and display, for example, the material that the tool will be processing, such as lumber, aluminum plate, or plywood, and the current setting value is marked with a check mark. Tapping the "Switch Feeling" character 807 will take you to the feeling adjustment screen in Figure 25(B). Tapping the "Edit" character 808 in Figure 26(B) will take you to the setting list editing screen in Figure 27(B).

[0066] FIG. 27(A) shows the setting list screen (initial state) displaying only the switch feeling default (first initial parameter) or classic mode (old default mode: second initial parameter), while FIG. 27(B) shows the saved setting list editing screen. In FIG. 27(B), checked settings can be deleted by tapping the Delete button 809. Tapping the "x" 810, indicating completion of editing, transitions to the setting list screen of FIG. 26(B). The default mode (first initial parameter) may be, for example, the basic specifications of the manufacturer of this electrical equipment system (all-around specifications suitable for all tasks, not specialized for a single task), while the classic mode (second initial parameter) may be, for example, the specifications of a tool already on the market. A user who purchases a new tool may want to work with the familiar specifications (operating parameters) of a tool they have used up until now, or may want to work with basic specifications suitable for all tasks. This allows the user to instantly configure the settings without having to configure the settings from scratch.

[0067] FIG. 28 shows screens for the registered tool list function. (A) is a registration list screen (all) that displays all selectable tools and storage batteries, and (B) is a registration list screen (registered but not connected), which displays a state in which tools and storage batteries are registered but cannot communicate. On the registration list screen in FIG. 28(A), tapping menu 820 transitions to the menu screen in FIG. 32. Tapping right edge 821 of the tool transitions to the folded tool list screen (folded) in FIG. 30(A). Tapping right edge 822 of the listed tool name transitions to the tool information display screen in FIG. 25(A). Tapping right edge 823 of the listed storage battery name transitions to the storage battery information display screen (registered tool connected) in FIG. 30(B). Tapping the "Tool" button at the bottom of the screen transitions to the tool list screen (tools only) in FIG. 29(A), and tapping the "Storage Battery" button transitions to the tool list screen (storage battery only) in FIG. 29(B).

[0068] On the registration list screen (registered but not connected) in Fig. 28(B), tapping on the right end 824 of the listed tool name will take you to the tool information display screen (not connected) in Fig. 31(A). Tapping on the right end 825 of the listed storage battery name will take you to the storage battery information display screen (not connected) in Fig. 31(B).

[0069] Figure 29(A) is a tool list screen (tools only) that displays selectable tools, and (B) is a tool list screen (batteries only) that displays selectable batteries.The registered tool list function of Figure 28(A) has been divided into tool and battery screens, and the functions are the same.

[0070] 30(A) shows a tool list screen (folded) for searching the registered tool list, and the tool list can be displayed by tapping the right end of the tool display 830. Similarly, the storage battery list can be displayed by tapping the right end of the storage battery display 831.

[0071] Figure 30(B) is the battery information display screen (registered tool connections) that displays the specific selected tool and battery, and also allows editing of the battery (disconnecting or deleting it from the list). Tapping the "Disconnect" button 832 disconnects the displayed battery. Tapping the "Delete this battery from list" button 833 also removes the displayed battery from the list.

[0072] Figure 31 (A) shows the tool information display screen (disconnected) when editing (deleting from the list) a specific selected tool, and (B) shows the battery information display screen (disconnected) when editing (deleting from the list) a specific selected battery. In Figure 31 (A), tapping the "Delete this tool from the list" button 834 deletes the displayed tool from the list. In Figure 31 (B), tapping the "Delete this battery from the list" button 835 deletes the displayed battery from the list.

[0073] FIG. 32 shows a menu screen that displays how to use the management application installed on the mobile terminal 80.

[0074] 21(A), (B) to 32 do not show screens such as graphs showing the relationship between the trigger pull amount and the rotation speed set on the feeling adjustment screen of FIG. 25(B), but the management app may have a function to display such screens.

[0075] 33 is an explanatory diagram showing the process of connecting and registering a registered electrical device 1 (referred to as "tool") and a battery pack 20 (referred to as "battery") using a management app (referred to as "app") installed on a mobile terminal 80. Communication between the management app, i.e., the mobile terminal 80, and the unregistered battery is performed using Bluetooth (registered trademark) communication, a short-range wireless communication standard, and communication between the unregistered battery and the unregistered tool is performed using wired communication (UART communication) after the battery is attached to the tool.

[0076] First, the management app is launched, and a connection destination search is performed. The switch of the unregistered battery (operation of the operation button 27a) is operated to place the battery side in a connection standby state. When the app finds a connection destination, the connected battery is displayed on the app screen (see FIG. 21(B)). By operating the app to register, the app sends a registration request to the unregistered battery in a connection standby state. The battery sends battery information to the app. As a result, the connection and registration between the app and the battery are completed (see FIGS. 22(A) to 23(B)). Next, the battery is attached to the tool, and wired communication between them is enabled. The tool's trigger switch 9 (labeled "Trigger") is operated (ON) to enable communication, and the microcomputer (calculation unit 40) serving as the control unit is activated, driving the motor until the trigger operation is stopped (OFF). Then, tool information is sent to the battery, and then connected tool information is sent from the battery to the app, and the connected tool is displayed on the app screen (see FIGS. 24(A) to 25(A)). By performing a registration operation on the app side, the connection and registration between the app and the tool are completed. The tool information is stored in the memory unit 46 of the tool (electrical device main body 1), and this information is sent to the mobile terminal 80 via the battery pack 20 and stored in the memory unit 82. At this time, the tool information is not stored in the memory unit 23 of the battery pack 20, and the battery pack 20 simply relays the information. Similarly, information on operating parameters sent to the tool from the mobile terminal 80, which will be described later, is not stored in the memory unit 23 of the battery pack 20, and the battery pack 20 functions as a relay.

[0077] Figure 34 is an explanatory diagram showing the flow of connecting and registering registered tools and registered batteries using the management app. The procedure is similar to that shown in Figure 33, but the steps for registering batteries and tools are unnecessary.

[0078] Figure 35 is an explanatory diagram showing the flow from the completion of connection of registered tools and registered batteries using the management app to the completion of the subsequent change of customized settings. is Communication between the management application, i.e., the mobile terminal 80, and the registered batteries is performed using Bluetooth (registered trademark), a short-range wireless communication standard, and communication between the registered batteries and the registered tools is performed using wired communication (UART communication).

[0079] After the management app completes the connection between the registered battery and the registered tool, the customization settings are changed on the app screen in Figure 25(B). This causes the customization settings to be sent to the registered tool via the registered battery. The registered tool is now in a communication-enabled state, so the settings within the tool are changed, the settings are stored in the memory unit 46, and a completion notice is sent to the registered battery, which then sends a completion notice to the app. A change completion notice is displayed on the app screen (see Figures 26(A) and (B)).

[0080] FIG. 36 is a flowchart for customizing the tool feeling. In this diagram, after the tool is started, step S1 determines whether the trigger 9 is operated. If the answer is "yes," step S2 drives the motor in the current operating mode and feeling setting value, and the process returns to step S1. In other words, customization is not possible while the trigger 9 is being operated. If the answer is "no" in step S1, step S3 determines whether the mode change switch (operation unit 11b of the mode change unit 11) has been operated. If the answer is "yes" in step S3, step S4 changes the operating mode in the following order: soft → power → bolt → single bolt → text → soft, and the process returns to step S1.

[0081] If the determination in step S3 is "No", it is determined in step S5 whether a feeling setting value has been received. If the determination in step S5 is "Yes", the feeling setting value of the power mode is updated in step S6 and the process returns to step S1. If the determination in step S5 is "No", the process returns to step S1.

[0082] Figure 37 is an explanatory diagram of sharing setting values ​​that customize the feel of a tool. After user A changes the setting values ​​of A's tool from A's mobile device, if user A allows or recommends other users to share the setting values, the link of the setting values ​​is uploaded to a network such as a social networking service and made public. User B, who wants the same settings as A, can access the link of the setting values ​​from B's mobile device, download the setting values ​​from the link, and change the setting values ​​of user B's tool.

[0083] For users working at the same work site, sharing customized settings can reduce the effort required for customization. Also, by sharing settings at the same work site, work can be performed under the same conditions, reducing variations in work performance between users.

[0084] 38 is an explanatory diagram including a display screen of the mobile terminal 80 when sharing setting values ​​customized for the tool feeling. By tapping the setting value link on the SNS page of user A on a mobile terminal 80' other than user A, the app will start and the setting value can be added to the setting list.

[0085] According to this embodiment, the following effects can be achieved.

[0086] (1) Since the operational feel of the electrical device 1 can be widely customized without being restricted by the operational parameters pre-prepared for the electrical device 1, it is possible to provide an electrical device 1 with an optimal or appropriate operational feel that is easy to use for more users than before.

[0087] (2) Optimal or appropriate operating parameters suited to the user or the work content can be transmitted from the external mobile terminal 80 to the electric device 1 to which the battery pack 20 is attached via the battery pack 20 with wireless communication function. Therefore, the main body of the electric device 1 does not need to have a wireless communication function. Also, once the operating parameters are stored in the electric device, the electric device 1 can be driven with the stored operating parameters even if a battery pack without wireless communication function is connected, improving workability.

[0088] (3) When changing the set rotation speed (in other words, the speed change characteristics) of the drive unit (motor 3) according to the operation (pulling amount) of the trigger switch 9 as the operating unit, for example, the speed range to be finely adjusted can be enlarged, and the required speed range can be set according to the work content, thereby improving workability.

[0089] (4) The set motor rotation speed according to the operation of the trigger switch 9 after the motor has started, and the time it takes for the motor to reach its maximum rotation speed when the trigger switch is pulled to its maximum (the degree of soft start) can be set to optimal or more appropriate values ​​according to the user and the work content, and operating parameters can be set according to the type of screw, improving workability without damaging the screw.

[0090] (5) When the operating parameters are changed, the completion of the setting can be indicated by a change in color or blinking on the device display unit (mode switching unit 11) of the electrical device 1, so that the user can recognize that the operating parameters have been changed.

[0091] (6) When the electrical device 1 is a tool such as an impact driver, the following operating parameters can be changed, for example: a. Setting value of the trigger switch pull amount (amount of free play) at which the tool begins to rotate. The position at which the trigger switch 9 activates the motor (the amount of free play) can be changed depending on the size and preferences of the user's hands, making it easier for the user to use and improving workability. For example, by increasing the amount of free play for users with small hands and decreasing it for users with large hands, the operating feel can be improved (uniformed). b. Setting value of the minimum rotation speed. The minimum rotation speed can be changed, so it can be set to suit the type of screw being used, improving workability. For example, it can be set to prevent thread stripping and make tapping easier. A low minimum rotation speed is suitable for delicate work that requires low speed, such as tightening short screws. c. Setting value of the trigger switch pull amount at which the rotation speed becomes maximum. By changing the setting of the trigger switch pull amount at which the trigger switch 9 becomes maximum depending on the size and preferences of the user's hands, it can be adapted to the size and preferences of the user's hands, improving workability. d. Maximum RPM Setting Value: A high maximum RPM setting is appropriate for users familiar with the tool and wanting to work quickly, while a low maximum RPM setting is appropriate for users less familiar with the tool. This setting determines the characteristics connecting the two points of the trigger switch pull-rPM characteristics determined by e.a.-d. (This setting determines the order of the curve of the RPM change according to the trigger switch pull, the pull amount at the inflection point, and the RPM.) Adjusting the speed characteristics improves workability by allowing for a wider range of speeds to be set depending on the task, such as by expanding the speed range for fine adjustments. At the same time, the trigger play, minimum RPM, maximum RPM, and trigger switch pull at which the RPM reaches its maximum value can be adjusted, enabling a variety of settings to meet user needs. f. Setting value (speed increase rate) that determines the time it takes for the motor speed to reach the set speed after operating the trigger switch. If the user is familiar with handling the tool and wants to work quickly, a high speed increase rate setting is appropriate, but if work speed is not important and cam-out prevention is desired, a low speed increase rate setting is appropriate; however, the speed increase rate can be set according to the user's level of proficiency.It is also possible to change a combination of items a to e at the same time.

[0092] While the present invention has been described above using the embodiments as examples, it will be understood by those skilled in the art that various modifications can be made to the components and processes of the embodiments within the scope of the claims. Modifications will be discussed below.

[0093] In the embodiment of the present invention, the structure of an impact driver is illustrated in Figure 2, but the present invention can be applied to power tools such as hammer drills, driver drills, and circular saws, as well as electrical equipment that controls the rotation speed of a drive unit such as a motor based on the amount of operation of the operating unit. [Explanation of symbols]

[0094] 1...electrical equipment, 2...housing, 2a...body portion (cylindrical portion), 2b...grip portion (handle portion), 2c...battery pack mounting portion, 3...motor (electric motor), 3a...output shaft (rotating shaft), 4...fan, 5...planetary gear mechanism (reduction mechanism), 6...spindle, 7...hammer, 8...anvil, 9...trigger switch, 10...electrical equipment control board, 11...mode switching section, 12...sensor inverter circuit board, 13...magnetic sensor (Hall IC), 14...switching element, 20...battery pack, 21...battery cell , 22... Calculation unit (battery side control unit), 23... Memory unit (battery side memory unit), 26... Communication unit (battery side communication unit), 27... Panel unit, 40... Calculation unit (device side control unit), 41... Current detection circuit, 42... Switch operation detection circuit, 43... Control signal circuit, 44... Rotation position detection circuit, 45... Rotation speed detection circuit, 46... Memory unit (device side memory unit), 80... Mobile terminal, 81... Control unit (terminal side control unit), 82... Memory unit (terminal side memory unit), 83... Display unit, 84... Operation unit, 85... Communication unit (terminal side communication unit), 86... Battery

Claims

1. A drive unit; a control unit that controls the drive unit; an operation unit that instructs the driving unit to start and stop; a storage unit that stores operation parameters for driving the drive unit; Equipped with The rotation speed of the drive unit is changed in accordance with the amount of operation of the operation unit, the operation parameters include a first operation amount of the operation unit that is an operation amount of the operation unit necessary for the drive unit to reach a maximum rotation speed from a first state in which the operation unit is not operated and the drive unit is not rotating, and the maximum rotation speed; The first manipulated variable can be changed in three or more stages by wireless communication with an external device when the maximum rotation speed is constant. An electrical device characterized by:

2. 2. The electrical device according to claim 1, the operating parameters include a minimum rotation speed at which the drive unit starts rotating; The first manipulated variable is configured to be changeable by wireless communication with the external device when the minimum rotation speed and the maximum rotation speed are constant. An electrical device characterized by:

3. 2. The electrical device according to claim 1, the operating parameters include a minimum rotation speed at which the drive unit starts rotating; At least one of the minimum rotation speed and the maximum rotation speed is changeable by wireless communication with the external device. An electrical device characterized by:

4. 4. The electrical device according to claim 3, the operation parameters include a speed change characteristic that is a curve of the number of rotations of the drive unit according to the operation amount of the operation unit after the drive unit starts to rotate, The gear shift characteristics are changeable by wireless communication with the external device. An electrical device characterized by:

5. An electrical device according to any one of claims 1 to 4; the external device capable of communicating with the electrical device and having a management application installed thereon for changing the operating parameters; An electrical equipment system comprising: The external device is an input unit for inputting the operation parameters; a display unit that displays the operating parameters; having An electrical equipment system characterized by:

6. The electrical equipment system according to claim 5, The input unit a customize button for switching the display unit to a screen for changing the operating parameters; a slider for changing the operating parameter; a registration button for registering the operation parameters; and The operating parameters can be changed in multiple stages by changing the position of the slider. An electrical equipment system characterized by:

Images