WO2023226424A1 - 电动工具调速系统及方法 - Google Patents

电动工具调速系统及方法 Download PDF

Info

Publication number
WO2023226424A1
WO2023226424A1 PCT/CN2022/141858 CN2022141858W WO2023226424A1 WO 2023226424 A1 WO2023226424 A1 WO 2023226424A1 CN 2022141858 W CN2022141858 W CN 2022141858W WO 2023226424 A1 WO2023226424 A1 WO 2023226424A1
Authority
WO
WIPO (PCT)
Prior art keywords
speed
module
switch
mode
operating speed
Prior art date
Application number
PCT/CN2022/141858
Other languages
English (en)
French (fr)
Inventor
金艳
钱进
周超
Original Assignee
江苏东成工具科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江苏东成工具科技有限公司 filed Critical 江苏东成工具科技有限公司
Priority to DE112022001999.9T priority Critical patent/DE112022001999T5/de
Priority to US18/461,495 priority patent/US20230405787A1/en
Publication of WO2023226424A1 publication Critical patent/WO2023226424A1/zh

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H02K7/145—Hand-held machine tool
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/08—Arrangements for controlling the speed or torque of a single motor

Definitions

  • the invention relates to the field of electric tool control, and in particular to an electric tool speed regulating system and method.
  • the operating speed of the motor is limited by the turn-on stroke of the switch trigger: when the operator wants the electric tool to be used at a specific time and the motor at a specific operating speed, the operator must pass Manually pressing the switch trigger and keeping the switch trigger's on-stroke stroke unchanged is difficult to keep the motor rotating at a specific operating speed. Especially for operators who use power tools continuously for a long time, it can easily cause physical fatigue. Energy collapses, work efficiency is greatly reduced, which leads to delays in normal work and greatly reduces the operator's comfort.
  • the purpose of the present invention is to provide an electric tool speed regulating system and method, adopting the following technical solutions:
  • An electric tool speed regulating system includes a power module, a motor, a controller and an inverter, the power module is connected to the inverter, the inverter is connected to the motor and the controller;
  • the controller is connected to the switch constant speed module, the rotation speed display module and the constant speed prompt module;
  • the switch constant speed module at least includes a switch trigger connected to the controller, and is set according to the switch trigger's turn-on stroke amount.
  • the target operating speed of the motor is determined; the rotation speed display module is used to display the preset operating speed of the motor; the fixed speed prompt module is used to prompt the setting status of the target operating speed; the target operating speed After the setting is completed, the electric tool will run at the target operating speed when it is started again.
  • the rotation speed display module at least includes a display connected to the controller, and the preset operating speed is presented through the display.
  • the constant speed prompt module adopts at least one of an indicator light module and a voice prompt module.
  • the indicator light module at least includes an LED light, and displays the setting state of the target operating speed through the LED light
  • the voice prompt module at least includes a voice player, and prompts the target operating speed through the voice player. Describes the setting status of the target operating speed.
  • the setting state of the target operating speed at least includes a setting state and a setting completed state.
  • the switch trigger adopts a variable resistance switch.
  • the controller at least includes a computing module, a storage unit connected to the computing module, and a timing unit.
  • the storage unit stores the preset operation corresponding to the turn-on stroke amount of the switch trigger. speed, the duration threshold for pressing the switch trigger and keeping the switch trigger's on-stroke amount unchanged;
  • the computing module is used to calculate the switch-on stroke amount of the switch trigger, and compare it with the preset operating speed A comparison is made to obtain the target operating speed;
  • the timing unit is used to count the duration of pressing the switch trigger and keeping the on-stroke amount of the switch trigger unchanged.
  • the computing module is also used to compare the duration with the duration threshold to control the setting state of the target running speed.
  • the controller is connected to a mode switching module to control the working mode of the motor; the working mode at least includes a normal mode and an intelligent fixed speed mode, and the normal mode is used to control the speed according to the connection of the switch trigger.
  • the throughput is used to control the real-time operating speed of the motor; the intelligent fixed speed mode is used to set the target operating speed according to the switch fixed speed module, the rotation speed display module and the fixed speed prompt module.
  • the mode switching module at least includes a mode button, and the mode button is used to control the motor to switch between the normal mode and the intelligent fixed speed mode.
  • the invention provides a speed regulating method for an electric tool, which includes the following steps:
  • S1 The power tool is powered on and enters normal mode
  • S2 Use the control mode button to switch the normal mode to the intelligent fixed speed mode. In this mode, continuously adjust the turn-on stroke of the switch trigger and monitor the preset running speed displayed on the display until the preset running speed is equal to the target running speed;
  • the present invention has the following beneficial effects:
  • the invention adds an intelligent fixed speed mode to the electric tool, and sets the target operating speed through the cooperation of the switch fixed speed module, the rotation speed display module and the fixed speed prompt module, which is convenient and fast, and can satisfy the operator's requirements for the electric tool in specific conditions.
  • the actual need to rotate at a specific operating speed within a certain period of time, especially for operators who use power tools continuously for a long time, does not require long pressing of the switch trigger, frees the operator's fingers, reduces labor intensity, makes the operator less likely to fatigue, and extremely
  • the work efficiency is greatly improved, and the operator's comfort level is greatly improved.
  • the present invention changes the traditional single mode of normal mode speed regulation, and allows the electric tool to switch between the normal mode and the intelligent fixed speed mode through the mode button.
  • the dual-mode operation can meet the different usage needs of customers and has high flexibility.
  • Figure 1 is a module structure diagram of the power tool speed regulating system of the present invention
  • Figure 2 is a schematic circuit diagram of the power tool speed regulating system of the present invention.
  • Figure 3 is a schematic flow chart of the power tool speed regulating method of the present invention.
  • Figure 4 is a diagram of an application embodiment of the present invention.
  • Switches 1. Power module 2. Motor 3. Controller 4. Inverter 5. Switch fixed speed module 6. Speed display module 7. Fixed speed prompt module 8. Mode switching module 31. Operation module 32. Storage unit 33. Timing unit 51. Switch trigger 61. Display 71. Indicator module 72. Voice prompt module 81. Mode button 711. LED light 721. Voice player
  • an electric tool speed regulating system which includes a power module 1, a motor 2, a controller 3 and an inverter 4.
  • the power module 1 is connected to the inverter 4, and the inverter 4 is connected to the motor. 2.
  • the controller 3 is connected; the controller 3 is connected to the switch fixed speed module 5, the rotation speed display module 6 and the fixed speed prompt module 7; the switch fixed speed module 5 at least includes a switch trigger 51 connected to the controller 3, and according to the switch trigger 51 turn-on stroke to set the target operating speed of the motor 2; the speed display module 6 is used to display the preset operating speed of the motor 2; the constant speed prompt module 7 is used to prompt the setting status of the target operating speed; the target operating speed After the setting is completed, the electric tool will run at the target operating speed when it is started again; among them, the switch trigger 51 is at least used to control the start and stop of the motor 2, and the controller 3 adopts an MCU controller.
  • the speed display module 6 at least includes a display 61 connected to the controller 3, and displays the preset operating speed through the display 61;
  • the constant speed prompt module 7 uses at least one of an indicator light module 71 and a voice prompt module 72.
  • the indicator light module 71 at least includes an LED light 711, and displays the setting status of the target operating speed through the LED light 711;
  • the voice prompt module 72 at least includes a voice player 721, and prompts the setting status of the target operating speed through the voice player 721 .
  • the setting state of the target operating speed at least includes a setting state and a setting completed state.
  • the switch trigger 51 adopts a variable resistance switch.
  • a VR speed regulating switch is used.
  • the controller 3 at least includes a computing module 31 , a storage unit 32 connected to the computing module 31 , and a timing unit 33 .
  • the storage unit 32 stores information corresponding to the turn-on stroke amount of the switch trigger 51 .
  • the computing module 31 is used to calculate the on-stroke amount of the switch trigger 51 and compare it with the preset operating speed To obtain the target operating speed;
  • the timing unit 33 is used to count the duration during which the switch trigger 51 is pressed and the on-stroke amount of the switch trigger 51 remains unchanged.
  • the operation module 31 is also used to compare the duration and the duration threshold to control the setting state of the target running speed, where the duration threshold has a value of 1s-2s, preferably 2s.
  • the controller 3 is connected to a mode switching module 8 for controlling the working mode of the motor; the working mode at least includes a normal mode and an intelligent fixed speed mode.
  • the normal mode is used to control the motor according to the connection of the switch trigger 51.
  • the stroke amount is used to control the real-time operating speed of the motor 2;
  • the intelligent fixed speed mode is used to set the target operating speed according to the switch fixed speed module 5, the rotation speed display module 6 and the fixed speed prompt module 7;
  • the mode switching module 8 at least includes a mode button 81, and control the motor 2 to switch between the normal mode and the intelligent fixed speed mode through the mode button 81.
  • the present invention provides a power tool speed regulation method, which is based on a power tool speed regulation system and includes the following steps:
  • the electric tool is powered on and enters the normal mode.
  • the real-time operating speed is controlled by pressing the turn-on stroke of the switch trigger 51.
  • the normal mode is the initial default mode when the electric tool is powered on;
  • S2 Switch the normal mode to the intelligent constant speed mode by pressing the mode button 81. In this mode, continuously adjust the turn-on stroke of the switch trigger 51 and monitor the preset operating speed displayed on the display 61 until the preset operating speed is equal to the target. running speed;
  • the LED light 711 flashes continuously or the voice player 721 issues a prompt that the target running speed is being set.
  • the setting status of the target operating speed can also be displayed through the display 61 , for example, the display 61 displays the setting status or the setting completed status.
  • the following two methods can be used: (1) First press the mode button 81 to switch the intelligent fixed speed mode to the normal mode. ; Press the mode button 81 again to switch the normal mode to the intelligent fixed speed mode, and then set another target operating speed; (2) Stop the power tool by pressing the switch trigger 51 and keeping the switch trigger 51 pressed for 2s ⁇ 3s , directly enter the target running speed setting state, and then follow step S3 to reset another target running speed.
  • the working principle of speed regulation of the present invention is:
  • V1 is adjusted by continuously adjusting the turn-on stroke of the push switch trigger 51, Until V1 equals V0, during the speed adjustment process, the LED light 711 flashes continuously or the voice player 721 issues a prompt that V0 is in the setting state; when V1 equals V0 and T1 is less than T0, the LED light 711 flashes continuously.
  • the voice player 721 issues a prompt that the target operating speed is in the setting state; when V1 is equal to V0 and T1 is greater than or equal to T0, the LED light 711 is always on or the voice player 721 issues a prompt that V0 is in the setting completion state. , then release the switch trigger 51, and V0 is set.
  • the invention adds an intelligent constant speed mode to the electric tool.
  • the target operating speed is set through the cooperation of the switch constant speed module 5, the rotation speed display module 6 and the constant speed prompt module 7. It is convenient and fast and can satisfy the operator's requirements for the electric power tool.
  • the actual requirement for the tool to rotate at a specific operating speed within a specific period of time, especially for operators who use power tools continuously for a long time, is that there is no need to press the switch trigger 51 for a long time, freeing the operator's fingers, reducing labor intensity, and making the operator It is not easy to get tired, greatly improves work efficiency, and at the same time, the operator's comfort level is greatly improved; in addition, the present invention changes the traditional single mode of normal mode speed regulation, and allows the electric tool to switch between the normal mode and the intelligent setting mode through the mode button 81. Switching between high-speed modes, the dual-mode operation can meet the different usage needs of customers and has high flexibility.
  • the present invention is applied to electric tools such as electric drills and impact drivers. Refer to the electric drill shown in Figure 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Electric Motors In General (AREA)
  • Portable Power Tools In General (AREA)

Abstract

本发明公开了一种电动工具调速系统，其电源模块连接于逆变器，逆变器电连接于控制器、电机，控制器电连接有开关定速模块、转速显示模块和定速提示模块；开关定速模块包括与控制器电连接的开关扳机且根据开关扳机的接通行程量来设定电机的目标运行速度；转速显示模块用以显示电机的预设运行速度；定速提示模块用以提示目标运行速度的设定状态。本发明在电动工具上增加智能定速模式，通过开关定速模块、转速显示模块和定速提示模块三者配合来设定目标运行速度，方便快捷，能够满足对电动工具在特定时间内且以特定的运行速度转动的实际需求，无需持续按压开关扳机，极大地降低了操作人员劳动强度，提高了工作效率。

Description

电动工具调速系统及方法 【技术领域】
本发明涉及电动工具控制领域，特别涉及一种电动工具调速系统及方法。
【背景技术】
目前，对于开关扳机带有调速功能的电动工具而言，随着按压开关扳机的接通行程量加大，电机的运行速度随之加大；反之，随着开关扳机的接通行程量减小，电机的运行速度随之减小。
然而，通过上述调速方案操作电动工具，其电机的运行速度受限于开关扳机的接通行程量：当操作人员想要电动工具在特定时间内且电机以特定的运行速度使用时，必须通过手动按压开关扳机并且保持开关扳机的接通行程量不变，这样的操作很难保持电机以特定的运行速度转动，尤其对于长时间连续使用电动工具的操作人员来说，很容易造成身体疲乏，精力溃散，工作效率大大降低，进而导致正常工作的延误，同时极大地降低了操作人员的使用舒适度。
因此，有必要设计一种电动工具调速系统及方法以解决上述技术问题。
【发明内容】
针对现有技术的不足，本发明的目的在于提供一种电动工具调速系统及方法，采用如下技术方案：
一种电动工具调速系统，包括电源模块、电机、控制器和逆变器，所述电源模块与所述逆变器相连，所述逆变器与所述电机、所述控制器相连；所述控制器与开关定速模块、转速显示模块和定速提示模块相连；所述开关定速模块至少包括与所述控制器连接的开关扳机，且根据所述开关扳机的接通行程量来设定所述电机的目标运行速度；所述转速显示模块用以显示所述电机的预设运 行速度；所述定速提示模块用以提示所述目标运行速度的设定状态；所述目标运行速度设定完毕后，所述电动工具再次启动时以所述目标运行速度运行。
进一步地，所述转速显示模块至少包括与所述控制器连接的显示器，且通过所述显示器呈现所述预设运行速度。
进一步地，所述定速提示模块采用指示灯模块、语音提示模块中的至少一个。
进一步地，所述指示灯模块至少包括LED灯，且通过所述LED灯显示所述目标运行速度的设定状态；所述语音提示模块至少包括语音播放器，且通过所述语音播放器提示所述目标运行速度的设定状态。
进一步地，所述目标运行速度的设定状态至少包括设定中状态、设定完状态。
优选地，所述开关扳机采用可变电阻式开关。
进一步地，所述控制器至少包括运算模块、与所述运算模块连接的存储单元和计时单元，所述存储单元内存储有与所述开关扳机的接通行程量相对应的所述预设运行速度、按压所述开关扳机且保持所述开关扳机的接通行程量不变的持续时间阈值；所述运算模块用以计算所述开关扳机的接通行程量，并与所述预设运行速度作对照以获取所述目标运行速度；所述计时单元用以计数按压所述开关扳机且保持所述开关扳机的接通行程量不变的持续时间。
进一步地，所述运算模块还用以比较所述持续时间与所述持续时间阈值的大小来控制所述目标运行速度的设定状态。
进一步地，所述控制器连接有模式切换模块，用以控制所述电机的工作模式；所述工作模式至少包括普通模式和智能定速模式，所述普通模式用以根据所述开关扳机的接通行程量来控制所述电机的实时运行速度；所述智能定速模 式用以根据所述开关定速模块、所述转速显示模块和所述定速提示模块来设定所述目标运行速度。
进一步地，所述模式切换模块至少包括模式按键，且通过所述模式按键控制所述电机在所述普通模式与所述智能定速模式之间进行切换。
本发明提供一种电动工具调速方法，包括以下步骤：
S1：电动工具上电，进入普通模式；
S2：通过控制模式按键将普通模式切换为智能定速模式，该模式下通过不断调整按压开关扳机的接通行程量并监测显示器呈现的预设运行速度，直至预设运行速度等于目标运行速度；
S3：智能定速模式下，当预设运行速度等于目标运行速度且持续时间小于持续时间阈值时，LED灯呈持续闪烁状态或语音播放器发出目标运行速度处于设定中状态的提示；
S4：当预设运行速度等于目标运行速度且持续时间大于或等于持续时间阈值时，LED灯呈常亮状态或语音播放器发出目标运行速度处于设定完状态的提示，然后松开开关扳机；
S5：再次按下开关扳机后松开，电动工具以目标运行速度运行。
与现有技术相比，本发明具有如下有益效果：
本发明在电动工具上增加了智能定速模式，通过开关定速模块、转速显示模块和定速提示模块三者配合来设定目标运行速度，方便、快捷，能够满足操作人员对电动工具在特定时间内且以特定的运行速度转动的实际需求，尤其对于长时间连续使用电动工具的操作人员来说，无需长时间按压开关扳机，释放操作人员手指，降低劳动强度，使得操作人员不易疲乏，极大地提高了工作效率，同时操作人员的使用舒适度得到了极大地提高。
此外，本发明改变传统普通模式调速的单一方式，通过模式按键使得电动工具在普通模式与智能定速模式之间进行切换，双模式操作能够满足客户的不同使用需求，其灵活度较高。
【附图说明】
下面结合附图对本发明的具体实施方式作进一步详细的说明：
图1是本发明电动工具调速系统的模块结构图；
图2是本发明电动工具调速系统的原理电路图；
图3是本发明电动工具调速方法的原理流程图；
图4是本发明的应用实施例图。
图中附图标记的含义：
1、电源模块 2、电机 3、控制器 4、逆变器 5、开关定速模块 6、转速显示模块 7、定速提示模块 8、模式切换模块 31、运算模块 32、存储单元 33、计时单元 51、开关扳机 61、显示器 71、指示灯模块 72、语音提示模块 81、模式按键 711、LED灯 721、语音播放器
【具体实施方式】
下面结合附图和实施方式对本发明作进一步详细的说明。
参阅图1、图2所示的一种电动工具调速系统，包括电源模块1、电机2、控制器3和逆变器4，电源模块1与逆变器4相连，逆变器4与电机2、控制器3相连；控制器3与开关定速模块5、转速显示模块6和定速提示模块7相连；开关定速模块5至少包括与控制器3连接的开关扳机51，且根据开关扳机51的接通行程量来设定电机2的目标运行速度；转速显示模块6用以显示电机2的预设运行速度；定速提示模块7用以提示目标运行速度的设定状态；目标运行速度设定完毕后，电动工具再次启动时以目标运行速度运行；其中，开关扳机 51至少用以控制电机2的启停，控制器3采用MCU控制器。
参阅图2所示，转速显示模块6至少包括与控制器3连接的显示器61，且通过显示器61呈现预设运行速度；定速提示模块7采用指示灯模块71、语音提示模块72中的至少一个；指示灯模块71至少包括LED灯711，且通过LED灯711显示目标运行速度的设定状态；语音提示模块72至少包括语音播放器721，且通过语音播放器721提示目标运行速度的设定状态。
本实施例中，目标运行速度的设定状态至少包括设定中状态、设定完状态。
本实施例中，开关扳机51采用可变电阻式开关，作为优选，采用VR调速开关。
继续参阅图1、图2所示，控制器3至少包括运算模块31、与运算模块31连接的存储单元32和计时单元33，存储单元32内存储有与开关扳机51的接通行程量相对应的预设运行速度、按压开关扳机51且保持开关扳机51的接通行程量不变的持续时间阈值；运算模块31用以计算开关扳机51的接通行程量，并与预设运行速度作对照以获取目标运行速度；计时单元33用以计数按压开关扳机51且保持开关扳机51的接通行程量不变的持续时间。
本实施例中，运算模块31还用以比较持续时间与持续时间阈值的大小来控制目标运行速度的设定状态，其中，持续时间阈值取值为1s-2s，优选地，取值为2s。
继续参阅图1、图2所示，控制器3连接有模式切换模块8，用以控制电机的工作模式；工作模式至少包括普通模式和智能定速模式，普通模式用以根据开关扳机51的接通行程量来控制电机2的实时运行速度；智能定速模式用以根据开关定速模块5、转速显示模块6和定速提示模块7来设定目标运行速度；模式切换模块8至少包括模式按键81，且通过模式按键81控制电机2在普通模式 与智能定速模式之间进行切换。
参阅图3所示，本发明提供一种电动工具调速方法，该方法基于电动工具调速系统，包括以下步骤：
S1：电动工具上电，进入普通模式，该模式下通过按压开关扳机51的接通行程量来控制实时运行速度，其中，普通模式为电动工具上电时的初始默认模式；
S2：通过按压模式按键81将普通模式切换为智能定速模式，该模式下通过不断调整按压开关扳机51的接通行程量并监测显示器61呈现的预设运行速度，直至预设运行速度等于目标运行速度；
S3：智能定速模式下，当预设运行速度等于目标运行速度且持续时间小于持续时间阈值时，LED灯711呈持续闪烁状态或语音播放器721发出目标运行速度处于设定中状态的提示；
S4：当预设运行速度等于目标运行速度且持续时间大于或等于持续时间阈值时，LED灯711呈常亮状态或语音播放器721发出目标运行速度处于设定完状态的提示，然后松开开关扳机51，其中，在目标运行速度设定过程中，电动工具处于停止状态；
S5：再次按下开关扳机51后松开，电动工具以目标运行速度运行；
S6：再次按下开关扳机51后松开，电动工具停机；
S7：再次按压模式81按键，智能定速模式切换为普通模式。
其中，当预设运行速度与目标运行速度不相等时，LED灯711呈持续闪烁状态或语音播放器721发出目标运行速度处于设定中状态的提示。
本实施例中，目标运行速度的设定状态还可以通过显示器61进行显示，如显示器61上显示设定中状态或设定完状态。
本实施例中，当电动工具处于智能定速模式下且需要更换另一目标运行速度时，可通过以下两种方案操作：(1)先按压模式按键81，将智能定速模式切换为普通模式；再次按压模式按键81，将普通模式切换为智能定速模式，再进行另一目标运行速度的设定；(2)电动工具停机，通过按压开关扳机51且保持开关扳机51按压状态2s～3s，直接进入目标运行速度设定中状态，然后按照步骤S3进行重新设定另一目标运行速度。
本发明的调速工作原理为：
(1)普通模式：操作人员根据电动工具运行速度使用需求，实时调整开关扳机51的接通行程量，进而达到调节电动工具实时运行速度的目的；
(2)智能定速模式(假设目标运行速度为V0，预设运行速度为V1，持续时间阈值为T0，持续时间为T1)：通过不断调整按压开关扳机51的接通行程量来调节V1，直至V1等于V0，该调速过程中，LED灯711呈持续闪烁状态或语音播放器721发出V0处于设定中状态的提示；当V1等于V0且T1小于T0时，LED灯711呈持续闪烁状态或语音播放器721发出目标运行速度处于设定中状态的提示；当V1等于V0且T1大于或等于T0时，LED灯711呈常亮状态或语音播放器721发出V0处于设定完状态的提示，然后松开开关扳机51，V0设定完毕。
本发明在电动工具上增加了智能定速模式，通过开关定速模块5、转速显示模块6和定速提示模块7三者配合来设定目标运行速度，方便、快捷，能够满足操作人员对电动工具在特定时间内且以特定的运行速度转动的实际需求，尤其对于长时间连续使用电动工具的操作人员来说，无需长时间按压开关扳机51，释放操作人员手指，降低劳动强度，使得操作人员不易疲乏，极大地提高了工作效率，同时操作人员的使用舒适度得到了极大地提高；此外，本发明改变传 统普通模式调速的单一方式，通过模式按键81使得电动工具在普通模式与智能定速模式之间进行切换，双模式操作能够满足客户的不同使用需求，其灵活度较高。
本发明应用于如电钻、冲击起子机等电动工具上，参阅如图4所示的电钻。
本发明不局限于上述具体实施方式，本领域普通技术人员可以很容易地理解到，在不脱离本发明原理和范畴的前提下，本发明的一种电动工具调速系统及方法还有其他很多的替代方案，本发明的保护范围以权利要求书的内容为准。

Claims (10)

  1. 一种电动工具调速系统，包括电源模块、电机、控制器和逆变器，所述电源模块与所述逆变器相连，所述逆变器与所述电机、所述控制器相连；其特征在于：所述控制器与开关定速模块、转速显示模块和定速提示模块相连；所述开关定速模块至少包括与所述控制器连接的开关扳机，且根据所述开关扳机的接通行程量来设定所述电机的目标运行速度；所述转速显示模块用以显示所述电机的预设运行速度；所述定速提示模块用以提示所述目标运行速度的设定状态；所述目标运行速度设定完毕后，所述电动工具再次启动时以所述目标运行速度运行。
  2. 根据权利要求1所述的电动工具调速系统，其特征在于：所述转速显示模块至少包括与所述控制器连接的显示器，且通过所述显示器呈现所述预设运行速度。
  3. 根据权利要求1所述的电动工具调速系统，其特征在于：所述定速提示模块采用指示灯模块、语音提示模块中的至少一个。
  4. 根据权利要求1所述的电动工具调速系统，其特征在于：所述指示灯模块至少包括LED灯，且通过所述LED灯显示所述目标运行速度的设定状态；所述语音提示模块至少包括语音播放器，且通过所述语音播放器提示所述目标运行速度的设定状态。
  5. 根据权利要求1所述的电动工具调速系统，其特征在于：所述目标运行速度的设定状态至少包括设定中状态、设定完状态。
  6. 根据权利要求1所述的电动工具调速系统，其特征在于：所述开关扳机采用可变电阻式开关。
  7. 根据权利要求1所述的电动工具调速系统，其特征在于：所述控制器至少包括运算模块、与所述运算模块连接的存储单元和计时单元，所述存储单元内 存储有与所述开关扳机的接通行程量相对应的所述预设运行速度、按压所述开关扳机且保持所述开关扳机的接通行程量不变的持续时间阈值；
    所述运算模块用以计算所述开关扳机的接通行程量，并与所述预设运行速度作对照以获取所述目标运行速度；
    所述计时单元用以计数按压所述开关扳机且保持所述开关扳机的接通行程量不变的持续时间；
    所述运算模块还用以比较所述持续时间与所述持续时间阈值的大小来控制所述目标运行速度的设定状态。
  8. 根据权利要求1所述的电动工具调速系统，其特征在于：所述控制器连接有模式切换模块，用以控制所述电机的工作模式；所述工作模式至少包括普通模式和智能定速模式，所述普通模式用以根据所述开关扳机的接通行程量来控制所述电机的实时运行速度；所述智能定速模式用以根据所述开关定速模块、所述转速显示模块和所述定速提示模块来设定所述目标运行速度。
  9. 根据权利要求8所述的电动工具调速系统，其特征在于：所述模式切换模块至少包括模式按键，且通过所述模式按键控制所述电机在所述普通模式与所述智能定速模式之间进行切换。
  10. 一种电动工具调速方法，其特征在于：包括以下步骤：
    S1：电动工具上电，进入普通模式；
    S2：通过控制模式按键将普通模式切换为智能定速模式，通过不断调整按压开关扳机的接通行程量并监测显示器呈现的预设运行速度，直至预设运行速度等于目标运行速度；
    S3：智能定速模式下，当预设运行速度等于目标运行速度且持续时间小于持续时间阈值时，LED灯呈持续闪烁状态或语音播放器发出目标运行速度处于 设定中状态的提示；
    S4：当预设运行速度等于目标运行速度且持续时间大于或等于持续时间阈值时，LED灯呈常亮状态或语音播放器发出目标运行速度处于设定完状态的提示，然后松开开关扳机；
    S5：再次按下开关扳机后松开，电动工具以目标运行速度运行。
PCT/CN2022/141858 2022-05-24 2022-12-26 电动工具调速系统及方法 WO2023226424A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112022001999.9T DE112022001999T5 (de) 2022-05-24 2022-12-26 System und Verfahren zur Geschwindigkeitsregelung von Elektrowerkzeugen
US18/461,495 US20230405787A1 (en) 2022-05-24 2023-09-05 System and method of adjusting speed of electric tool

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210567267.3A CN115102460A (zh) 2022-05-24 2022-05-24 电动工具调速系统及方法
CN202210567267.3 2022-05-24

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/461,495 Continuation US20230405787A1 (en) 2022-05-24 2023-09-05 System and method of adjusting speed of electric tool

Publications (1)

Publication Number Publication Date
WO2023226424A1 true WO2023226424A1 (zh) 2023-11-30

Family

ID=83288685

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/141858 WO2023226424A1 (zh) 2022-05-24 2022-12-26 电动工具调速系统及方法

Country Status (4)

Country Link
US (1) US20230405787A1 (zh)
CN (1) CN115102460A (zh)
DE (1) DE112022001999T5 (zh)
WO (1) WO2023226424A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115102460A (zh) * 2022-05-24 2022-09-23 江苏东成工具科技有限公司 电动工具调速系统及方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013166246A (ja) * 2013-06-04 2013-08-29 Makita Corp 電動工具
CN106998168A (zh) * 2015-11-06 2017-08-01 株式会社牧田 电动工作机
CN108778651A (zh) * 2016-02-03 2018-11-09 米沃奇电动工具公司 用于配置往复锯的系统和方法
CN110739890A (zh) * 2018-07-02 2020-01-31 苏州宝时得电动工具有限公司 一种电动工具的速度控制方法及电动工具
CN111775117A (zh) * 2019-04-04 2020-10-16 南京德朔实业有限公司 智能电动工具及其系统和控制方法
CN115102460A (zh) * 2022-05-24 2022-09-23 江苏东成工具科技有限公司 电动工具调速系统及方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013166246A (ja) * 2013-06-04 2013-08-29 Makita Corp 電動工具
CN106998168A (zh) * 2015-11-06 2017-08-01 株式会社牧田 电动工作机
CN108778651A (zh) * 2016-02-03 2018-11-09 米沃奇电动工具公司 用于配置往复锯的系统和方法
CN110739890A (zh) * 2018-07-02 2020-01-31 苏州宝时得电动工具有限公司 一种电动工具的速度控制方法及电动工具
CN111775117A (zh) * 2019-04-04 2020-10-16 南京德朔实业有限公司 智能电动工具及其系统和控制方法
CN115102460A (zh) * 2022-05-24 2022-09-23 江苏东成工具科技有限公司 电动工具调速系统及方法

Also Published As

Publication number Publication date
US20230405787A1 (en) 2023-12-21
CN115102460A (zh) 2022-09-23
DE112022001999T5 (de) 2024-02-15

Similar Documents

Publication Publication Date Title
WO2023226424A1 (zh) 电动工具调速系统及方法
JPH08132353A (ja) 衝撃工具
WO2017101273A1 (zh) 点阵背光源驱动方法、装置和系统
CN108188968A (zh) 一种电动冲击扳手及其装配力矩的控制方法
CN105818737A (zh) 汽车的背光调节系统、方法和汽车
WO2021196491A1 (zh) 筋膜枪的无极调速控制系统
CN207942344U (zh) 一种电动冲击扳手
WO2024046498A1 (zh) 一种电动工具及控制方法
CN201539946U (zh) 一种空调控制装置
JP6023909B1 (ja) 扇風機およびその制御方法
CN202334259U (zh) 一种带散热功能的低压变频器
CN109080462B (zh) 一种电动汽车能量回收调节方法
CN111063296A (zh) 一种led显示屏电源开关控制系统
WO2016065848A1 (zh) 一种修枝机变速控制方法
CN201107719Y (zh) 节能型电脑机箱温控器
CN205811887U (zh) 一种具有最小占空比设定的pwm控制信号产生电路
CN209970586U (zh) 一种实现交互界面的电动扭矩扳手
CN201431604Y (zh) 肩背按摩器
CN111168616A (zh) 一种充电式扭矩扳手的控制系统
CN203001146U (zh) 牙科治疗设备的马达控制系统
CN2728159Y (zh) 面板指示灯调光装置
CN218607315U (zh) 一种基于定额转速的多型按摩推力筋膜枪
CN202345428U (zh) 电动车用减速调节器
US20230339571A1 (en) Moror driving system and motor driving method thereof
CN112477629B (zh) 一种电动自行车起步调速方法

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 112022001999

Country of ref document: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22943609

Country of ref document: EP

Kind code of ref document: A1